1,561 Internists Found in Fontana, CA – Page 8

We found 1,561 Internists available in Fontana, CA with an average 4 stars across 5,810 reviews. Find the best one for your needs by years of experience, distance, reviews on Vitals, and more through the filters provided below. Currently, 565 Internists listed are accepting new patients and 520 accept Medicare. Showing 421 to 480 of 1,561 Internists.

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Trisha Khanna, MD, FAAD

Dermatology
Spent time with me
8 years exp
Accepting New Patients
Virtual Visit available
Orlando, FL
"Dr. Trisha Khanna was incredibly compassionate and reassuring during a very stressful time for me." View Profile

Dr. Lubna Isho, DO

Family Medicine
Provided follow-up after the visit
1 Award
25 years exp
Accepting New Patients
Virtual Visit available
Pomona, CA
"She's a very good doctor, very helpful and informative. They are also very quick on sending out refferals to see other specialist 5/5" View Profile

Dr. George Mousa, MD

Internal Medicine
17 years exp
Accepting New Patients
Virtual Visit available
Upland, CA
Dr. George Mousa specializes in preventive care and chronic disease management within Internal Medicine. View Profile

Karthikeyan Viswanathan, DO

Internal Medicine
12 years exp
Accepting New Patients
Virtual Visit available
Los Altos, CA
Dr. Karthikeyan Viswanathan, DO, is a physician who brings a unique perspective to medicine through his diverse professional background. View Profile

Benjamin Domingo, FNP

Integrative Medicine
28 years exp
Accepting New Patients
Virtual Visit available
Chicago, IL
Benjamin Domingo, APRN is a Board-certified Family Nurse Practitioner with 20+ years of healthcare experience, including primary care and advanced training in obesity medicine. View Profile

Eric Harker

Internal Medicine
Provided follow-up after the visit
1 Award
25 years exp
Accepting New Patients
Virtual Visit available
Lyons, CO
"Eric is amazing and the most caring person I know. He always has a huge smile on his face and feels super blessed that he gets to help people for his job." View Profile

Dr. Rajmeet Kaur Mann, MD

Internal Medicine
8 years exp
Accepting New Patients
Virtual Visit available
Rocklin, CA
Dr. Rajmeet Kaur Mann, MD, is an internal medicine physician who provides primary care, urgent care, and virtual healthcare services at 5 Rivers Health in Rocklin, California. View Profile

Yves Chery, CT, ASCP, APRN, BSN, MSN

Family Medicine
Had a good bedside manner
Accepting New Patients
Virtual Visit available
Suwanee, GA
"He radiates warmth and kindness. I have never felt so heard and respected by a medical professional. Great experience and I highly recommend him." View Profile

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Dr. Amir Hossen Golsorkhi, MD

Anesthesiology
23 years exp
Fontana, CA2.0 mi
Dr. Dr. Amir Hossen Golsorkhi, MD is a health care provider primarily located in Fontana, CA. He has 23 years of experience. View Profile

Dr. Angelo M Asheh

Public Health & General Preventive Medicine
9 years exp
Accepting New Patients
Fontana, CA2.0 mi
Dr. Dr. Angelo M Asheh is a health care provider primarily located in Fontana, CA, with other offices in West Palm Beach, FL and La Jolla, CA(and 4 other locations). View Profile

Dr. Sachin Rastogi, MD

Neuroradiology
22 years exp
Fontana, CA2.0 mi
Dr. Dr. Sachin Rastogi, MD is a health care provider primarily located in Fontana, CA, with other offices in Los Angeles, CA and Los Angeles, CA(and 2 other locations). View Profile

Dr. Su S Hline, MD

Nephrology
39 years exp
Accepting New Patients
Fontana, CA2.0 mi
Dr. Dr. Su S Hline, MD is a health care provider primarily located in Fontana, CA, with other offices in Fontana, CA and Rancho Cucamonga, CA. She has 39 years of experience. View Profile

Dr. Sumera Panhwar, MD

Anesthesiology
22 years exp
Fontana, CA2.0 mi
Dr. Dr. Sumera Panhwar, MD is a health care provider primarily located in Fontana, CA. She has 22 years of experience. Her specialties include Internal Medicine, Anesthesiology. View Profile

Dr. Tzyy Shyang Chao, MD

Diagnostic Radiology
12 years exp
Accepting New Patients
Fontana, CA2.0 mi
Dr. Dr. Tzyy Shyang Chao, MD is a health care provider primarily located in Fontana, CA, with other offices in Morristown, NJ and Moreno Valley, CA(and 8 other locations). View Profile

Dr. Jong-Ho Cliff Hwang, MD

Internal Medicine
43 years exp
Fontana, CA2.0 mi
Dr. Dr. Jong-Ho Cliff Hwang, MD is a health care provider primarily located in Fontana, CA. He has 43 years of experience. His specialties include Internal Medicine, Pathology. View Profile

Dr. Patrick Jaehee Lee, MD

Ophthalmology
11 years exp
Fontana, CA2.0 mi
Dr. Dr. Patrick Jaehee Lee, MD is a health care provider primarily located in Fontana, CA. He has 11 years of experience. His specialties include Internal Medicine, Ophthalmology. View Profile

Dr. Jimmy Ton, MD

Diagnostic Radiology
22 years exp
Fontana, CA2.0 mi
Dr. Dr. Jimmy Ton, MD is a health care provider primarily located in Fontana, CA, with other offices in Moreno Valley, CA and Baldwin Park, CA(and 7 other locations). View Profile

Dr. Scott Owen Marnoy, MD

Gastroenterology
44 years exp
Fontana, CA2.0 mi
Dr. Dr. Scott Owen Marnoy, MD is a health care provider primarily located in Fontana, CA. He has 44 years of experience. View Profile

Dr. Jonahlie Quintos Monsale, MD

Internal Medicine
25 years exp
Fontana, CA2.0 mi
Dr. Dr. Jonahlie Quintos Monsale, MD is a health care provider primarily located in Fontana, CA, with another office in Los Angeles, CA. She has 25 years of experience. View Profile

Dr. Lih-Jiau Chen, MD

Internal Medicine
49 years exp
Fontana, CA2.0 mi
Dr. Dr. Lih-Jiau Chen, MD is a health care provider primarily located in Fontana, CA, with other offices in Arcadia, CA and Arcadia, CA. She has 49 years of experience. View Profile

Alexander Orlando Richard Urzua

Addiction Medicine
67 years exp
Accepting New Patients
Fontana, CA2.0 mi
Alexander Orlando Richard Urzua is a health care provider primarily located in Fontana, CA, with other offices in COLUMBUS, OH and Greenville, NC(and 2052 other locations).

Dr. Edward Alan Hess, MD

Endocrinology, Diabetes & Metabolism
45 years exp
Fontana, CA2.0 mi
Dr. Dr. Edward Alan Hess, MD is a health care provider primarily located in Fontana, CA. He has 45 years of experience. View Profile

Dr. Teresita C Belamide, MD

Internal Medicine
57 years exp
Accepting New Patients
Fontana, CA2.0 mi
Dr. Dr. Teresita C Belamide, MD is a health care provider primarily located in Fontana, CA, with other offices in Fontana, CA and Moreno Valley, CA(and 3 other locations). View Profile

Dr. Duc Quang Nguyen, MD

Internal Medicine
51 years exp
Fontana, CA2.0 mi
Dr. Dr. Duc Quang Nguyen, MD is a health care provider primarily located in Fontana, CA. He has 51 years of experience. His specialties include Internal Medicine. View Profile

Dr. Yeo Youn, MD

Internal Medicine
49 years exp
Fontana, CA2.0 mi
Dr. Dr. Yeo Youn, MD is a health care provider primarily located in Fontana, CA, with another office in Anaheim, CA. He has 49 years of experience. View Profile

Dr. Norman Cueto Ragaza, MD

Geriatric Medicine
31 years exp
Fontana, CA2.0 mi
Dr. Dr. Norman Cueto Ragaza, MD is a health care provider primarily located in Fontana, CA. He has 31 years of experience. View Profile

Dr. Lev Rasin, MD

Internal Medicine
47 years exp
Accepting New Patients
Fontana, CA2.0 mi
Dr. Dr. Lev Rasin, MD is a health care provider primarily located in Fontana, CA, with other offices in Fontana, CA and Ontario, CA. He has 47 years of experience. View Profile

Dr. Steve Sungkoo Lee, DO

Rheumatology
24 years exp
Fontana, CA2.0 mi
Dr. Dr. Steve Sungkoo Lee, DO is a health care provider primarily located in Fontana, CA. He has 24 years of experience. His specialties include Internal Medicine, Rheumatology. View Profile

Dr. Alexander Kyungjin Han, MD

Gastroenterology
21 years exp
Accepting New Patients
Fontana, CA2.0 mi
Dr. Dr. Alexander Kyungjin Han, MD is a health care provider primarily located in Fontana, CA, with other offices in Ontario, CA and Ontario, CA. He has 21 years of experience. View Profile

Dr. Elizabeth Abrantes Cadag, MD

Internal Medicine
16 years exp
Fontana, CA2.0 mi
Dr. Dr. Elizabeth Abrantes Cadag, MD is a health care provider primarily located in Fontana, CA. She has 16 years of experience. Her specialties include Internal Medicine. View Profile

Dr. Ajay M Ohri, MD

Pulmonology
10 years exp
Fontana, CA2.0 mi
Dr. Dr. Ajay M Ohri, MD is a health care provider primarily located in Fontana, CA, with other offices in Oakland, CA and Fresno, CA. He has 10 years of experience. View Profile

Dr. Onyinye Nwankwo Ahamba, MD

Internal Medicine
12 years exp
Fontana, CA2.0 mi
Dr. Dr. Onyinye Nwankwo Ahamba, MD is a health care provider primarily located in Fontana, CA, with another office in Redlands, CA. She has 12 years of experience. View Profile

Dr. Edmond C Hui, MD

Internal Medicine
36 years exp
Accepting New Patients
Fontana, CA2.0 mi
Dr. Dr. Edmond C Hui, MD is a health care provider primarily located in Fontana, CA, with other offices in Ontario, CA and Ontario, CA. He has 36 years of experience. View Profile

Dr. Joseph James Tseng, MD

Internal Medicine
10 years exp
Fontana, CA2.0 mi
Dr. Dr. Joseph James Tseng, MD is a health care provider primarily located in Fontana, CA, with another office in Stanford, CA. He has 10 years of experience. View Profile

Dr. Charles Gilbert Silas JR., MD

Internal Medicine
39 years exp
Fontana, CA2.0 mi
Dr. Dr. Charles Gilbert Silas, MD is a health care provider primarily located in Fontana, CA, with other offices in Henderson, NV and Henderson, NV(and 2 other locations). View Profile

Dr. Ruperto Dilworth Mendiones, MD

Geriatric Medicine
55 years exp
Fontana, CA2.0 mi
Dr. Dr. Ruperto Dilworth Mendiones, MD is a health care provider primarily located in Fontana, CA, with another office in Rancho Cucamonga, CA. He has 55 years of experience. View Profile

Dr. Mona T Yazdi, DO

Internal Medicine
9 years exp
Fontana, CA2.0 mi
Dr. Dr. Mona T Yazdi, DO is a health care provider primarily located in Fontana, CA, with other offices in Torrance, CA and Torrance, CA(and 2 other locations). View Profile

Dr. Keith Allan Thompson, MD

Internal Medicine
18 years exp
Fontana, CA2.0 mi
Dr. Dr. Keith Allan Thompson, MD is a health care provider primarily located in Fontana, CA. He has 18 years of experience. View Profile

Dr. Jie Ren

Cardiology
34 years exp
Fontana, CA2.0 mi
Dr. Dr. Jie Ren is a health care provider primarily located in Fontana, CA. He has 34 years of experience. His specialties include Internal Medicine, Cardiology. View Profile

Dr. Janki R Shah, MD

Internal Medicine
15 years exp
Fontana, CA2.0 mi
Dr. Dr. Janki R Shah, MD is a health care provider primarily located in Fontana, CA. She has 15 years of experience. Her specialties include Internal Medicine, Hospital Medicine. View Profile

Dr. Jea Hyun Lee, MD

Infectious Disease
29 years exp
Fontana, CA2.0 mi
Dr. Dr. Jea Hyun Lee, MD is a health care provider primarily located in Fontana, CA. He has 29 years of experience. His specialties include Internal Medicine, Infectious Disease. View Profile

Dr. Andrew Chen Cha, DO

Internal Medicine
23 years exp
Fontana, CA2.0 mi
Dr. Dr. Andrew Chen Cha, DO is a health care provider primarily located in Fontana, CA, with another office in Ontario, CA. He has 23 years of experience. View Profile

Dr. Kamal Kejriwal, MD

Geriatric Medicine
31 years exp
Fontana, CA2.0 mi
Dr. Dr. Kamal Kejriwal, MD is a health care provider primarily located in Fontana, CA. He has 31 years of experience. View Profile

Dr. Saba Fatema Ahmad, MD

Cardiology
14 years exp
Fontana, CA2.0 mi
Dr. Dr. Saba Fatema Ahmad, MD is a health care provider primarily located in Fontana, CA, with another office in Orlando, FL. She has 14 years of experience. View Profile

Dr. Quang Chi Tran

Internal Medicine
35 years exp
Accepting New Patients
Fontana, CA2.1 mi
Dr. Dr. Quang Chi Tran is a health care provider primarily located in Fontana, CA. She has 35 years of experience. Her specialties include Internal Medicine. View Profile

Usmaan M Arshad

Internal Medicine
Accepting New Patients
Fontana, CA2.1 mi
Usmaan M Arshad is a health care provider primarily located in Fontana, CA. Their specialties include Internal Medicine. View Profile

Dr. Brandon Tong, DO

Internal Medicine
15 years exp
Accepting New Patients
Fontana, CA2.3 mi
Dr. Dr. Brandon Tong, DO is a health care provider primarily located in Fontana, CA, with other offices in Rancho Cucamonga, CA and Upland, CA(and 5 other locations). View Profile

Kishan Nitin Patel

Diagnostic Radiology
3 years exp
FONTANA, CA2.3 mi
Kishan Nitin Patel is a health care provider primarily located in FONTANA, CA, with another office in FONTANA, CA. He has 3 years of experience. View Profile

Dr. Claire Heesun Park

Internal Medicine
2 years exp
Fontana, CA2.3 mi
Dr. Dr. Claire Heesun Park is a health care provider primarily located in Fontana, CA. She has 2 years of experience. Her specialties include Internal Medicine. View Profile

Dr. Kayla Thuynga Lam

Internal Medicine
2 years exp
Fontana, CA2.3 mi
Dr. Dr. Kayla Thuynga Lam is a health care provider primarily located in Fontana, CA. She has 2 years of experience. Her specialties include Internal Medicine. View Profile

Dr. Kalisa Lum

Internal Medicine
Fontana, CA2.3 mi
Dr. Dr. Kalisa Lum is a health care provider primarily located in Fontana, CA. Her specialties include Internal Medicine. View Profile

Dr. Meng-Yung Michael Ong

Internal Medicine
3 years exp
Fontana, CA2.3 mi
Dr. Dr. Meng-Yung Michael Ong is a health care provider primarily located in Fontana, CA. He has 3 years of experience. His specialties include Internal Medicine. View Profile

Joseph Kim

Anesthesiology
FONTANA, CA2.3 mi
Joseph Kim is a health care provider primarily located in FONTANA, CA. His specialties include Internal Medicine, Anesthesiology. View Profile

Dr. Ramesh R Patel

Internal Medicine
57 years exp
Fontana, CA2.5 mi
Dr. Dr. Ramesh R Patel is a health care provider primarily located in Fontana, CA. He has 57 years of experience. His specialties include Internal Medicine, Family Medicine. View Profile

Dr. Saghar Saber, MD

Infectious Disease
11 years exp
Accepting New Patients
Fontana, CA2.6 mi
Dr. Dr. Saghar Saber, MD is a health care provider primarily located in Fontana, CA, with other offices in Compton, CA and Compton, CA(and 4 other locations). View Profile

Dr. Henry Paul Sideropoulos, MD

Internal Medicine
Accepting New Patients
Fontana, CA3.2 mi
Dr. Dr. Henry Paul Sideropoulos, MD is a health care provider primarily located in Fontana, CA, with another office in Pasadena, CA. Their specialties include Internal Medicine. View Profile

Dr. Charles Nguyen, MD

Nephrology
15 years exp
Accepting New Patients
Fontana, CA3.5 mi
Dr. Dr. Charles Nguyen, MD is a health care provider primarily located in Fontana, CA, with other offices in Downey, CA and Riverside, CA(and 10 other locations). View Profile

Dr. Rohinder Kaur Sandhu, MD

Critical Care Medicine
46 years exp
Accepting New Patients
Rancho Cucamonga, CA5.9 mi
"Great Doctor!" View Profile

Dr. Stuart Charles Seigel, MD

Endocrinology, Diabetes & Metabolism
18 years exp
Accepting New Patients
Rancho Cucamonga, CA6.5 mi
"I always have such a positive experience at my visits with him. he is so encouraging and has helped me improve my condition. This is the healthiest I have been in years!" View Profile

Dr. Ruben Ruiz, MD

Internal Medicine
44 years exp
Accepting New Patients
Rialto, CA5.3 mi
Dr. Dr. Ruben Ruiz, MD is a health care provider primarily located in Rialto, CA, with other offices in Rialto, CA and Montebello, CA(and 2 other locations). View Profile

Dr. Carlos Robert Vigil, DO

Internal Medicine
29 years exp
Accepting New Patients
Colton, CA6.5 mi
Dr. Dr. Carlos Robert Vigil, DO is a health care provider primarily located in Colton, CA, with other offices in Colton, CA and Upland, CA. He has 29 years of experience. View Profile

Dr. Douglas Owen Wayne Eaton, MD

Internal Medicine
41 years exp
Rancho Cucamonga, CA6.0 mi
Dr. Dr. Douglas Owen Wayne Eaton, MD is a health care provider primarily located in Rancho Cucamonga, CA. He has 41 years of experience. View Profile

Dr. Sandra Siewpin Lee, MD

Dermatology
28 years exp
Accepting New Patients
Upland, CA10.0 mi
Dr. Dr. Sandra Siewpin Lee, MD is a health care provider primarily located in Upland, CA, with another office in Upland, CA. She has 28 years of experience. View Profile

Dr. Iyad Hanna, MD

Internal Medicine
28 years exp
Accepting New Patients
Rancho Cucamonga, CA6.1 mi
"Great visit every time ." View Profile

Dr. Amit Ishwarbhai Patel, MD

Allergy & Immunology
49 years exp
Accepting New Patients
Riverside, CA9.1 mi
"He took the time to explain all my results of my allergy testing and ct scan in a way I could understand. He is very informative and very thorough." View Profile

Dr. Waseemuddin Kazi, MD

Cardiology
42 years exp
Colton, CA6.5 mi
Dr. Dr. Waseemuddin Kazi, MD is a health care provider primarily located in Colton, CA, with other offices in Loma Linda, CA and Loma Linda, CA. He has 42 years of experience. View Profile

Dr. Mina N Mikhail, MD

Internal Medicine
48 years exp
Accepting New Patients
Riverside, CA9.0 mi
"A compassionate knowledgeable Doctor that gives you the time to discuss options and the facts. If you are in Riverside you should be using him!" View Profile

Dr. Shadi Ali Qasqas, MD

Interventional Cardiology
24 years exp
Accepting New Patients
Rancho Cucamonga, CA5.9 mi
"Staff was courteous, very nice and clean office. Follow-up appointment was made. The doctor took his time speaking with me." View Profile

What is an Internist and How Can They Help You?

An internist specializes in adult medicine, providing comprehensive care for complex medical conditions. These physicians excel at diagnosing challenging cases and managing patients with multiple organ system involvement.

Internists complete medical school and a three-year internal medicine residency. Many pursue subspecialty fellowship training in fields such as cardiology, gastroenterology, or infectious disease, though general internists maintain broad adult medical expertise.

An Internist's clinical practice encompasses:

  • Concentrates on adult patient populations and multi-system medical management
  • Conducts medical history reviews, physical assessments, diagnostic test interpretation
  • Manages metabolic disorders, cardiovascular disease, pulmonary conditions, infectious processes, and immune-mediated diseases
  • Employs pharmaceutical management, preventive medicine, health counseling, and specialist coordination
  • Alternative titles: adult medicine specialist, general internist, MD, DO

Frequently Asked Questions

What's the best way to search for an Internist in Fontana who accepts my health insurance?
Navigate to the insurance filter located at the top of the search page and select your health plan. This will display only Internists in Fontana who are in-network with your carrier. For additional confirmation, visit each doctor's profile or reach out to their office by phone.
Where can I find Internists in Fontana who offer virtual appointments?
Select the "Virtual Visit" filter at the top of the search page to see Internists providing telehealth services in Fontana. Check each doctor's profile for video visit options and online scheduling availability. You may also call their office to set up a remote consultation.
What's the easiest way to locate highly-rated Internists in Fontana?
Use the "Ratings" filter at the top of the search page to filter results by the average star rating. Browse individual profiles to see patient reviews and ratings in detail. When comparing Internists, look at both the average star rating and how many patients have submitted reviews.
Is it possible to schedule a same-day visit with an Internist in Fontana?
Visit individual doctor profiles to see their current scheduling availability in Fontana. If you don't see same-day openings listed online, try calling their office—walk-in times may be available that don't appear on the website.
Which Internists in Fontana have the shortest wait times?
Review the Ratings & Reviews card on each provider's profile to see their average wait time in Fontana. This helps you find an Internist that doesn’t make their patients wait too long.
Can I schedule appointments with Internists in Fontana without calling?
Search for Internists who have "Book Online" or "Request Now" options on their profiles. Click these buttons to access online appointment scheduling. If a provider doesn't offer web-based booking, their phone number will be available for traditional scheduling.
How do I locate an Internist in Fontana with evening or weekend hours?
Check the Locations card on each profile to view office hours for Internists in Fontana. This helps you find providers with non-traditional availability. For the most accurate information about extended availability, call the office directly.
How do I leave feedback about my appointment with an Internist in Fontana?
Go to your doctor's profile page and click the "Leave a Review" button or link. You can share your rating and write about your experience. Patient reviews like yours help others in the community choose the right Internist.
How can I locate an Internist in Fontana who is fluent in my preferred language?
Review the language information displayed on individual profiles for Internists. If this information isn't available online, contact the office directly to ask about the doctor's language capabilities or whether interpreters are available.
How do I search for an Internist in Fontana who works at a particular hospital or medical center?
Check the "Hospital Affiliation" and "Locations" sections on each provider's profile to see where Internists practice. You can also enter a specific hospital or medical group name into the search tool to find Internists who work there.

Ensuring Data Transparency and Trust: A Guide to Vitals Doctor Listings and Reviews

Our provider data is gathered directly from physicians and publicly available databases. Providers who verify their profiles gain the ability to update information, offering additional details about their specialties,education, treated conditions, performed procedures, and accepted insurances.

Reviews on Vitals are submitted by users only. Recognizing the valuable insights these reviews offer into a doctor's reputation, we maintain internal policies and protocols to ensure the quality and accuracy of all reviews. Importantly, providers cannot delete or alter reviews independently. Reviews can only be deleted or changed following an internal assessment by our customer service team.

Your feedback is highly valued and we encourage you to contact our support team should you encounter any issues.