697 Internists Found in Ontario, CA – Page 7

We found 697 Internists available in Ontario, CA with an average 4 stars across 4,002 reviews. Find the best one for your needs by years of experience, distance, reviews on Vitals, and more through the filters provided below. Currently, 335 Internists listed are accepting new patients and 295 accept Medicare. Showing 361 to 420 of 697 Internists.

Filter Internists Results

Featured Results

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

Dr. Shilpa Sayana, MD

Internal Medicine
Gave an accurate diagnosis
22 years exp
Accepting New Patients
Virtual Visit available
SHERMAN OAKS, CA
Dr. Shilpa Sayana, MD, is a triple-board-certified Functional Medicine Internist who is dedicated in helping women navigate perimenopause and menopause. View Profile

Bonni London, MS, RDN, LDN

Registered Dietitian
28 years exp
Accepting New Patients
Virtual Visit available
Sarasota, FL
ACCEPTING NEW PATIENTS FOR TELEHEALTH SERVICES in NY, CA, AZ, FL & COACCEPTING IN PERSON VISITS in Sarasota & Lakewood Ranch communities in FLORIDABonni London, RDN, is a registered dietitian nutritionist and founder of London Wellness, holding a Masters degree in Clinical Nutrition from NYU. View Profile

Dr. Raghav Sharma, MD

Cardiovascular Disease
Gave an accurate diagnosis
16 years exp
Accepting New Patients
Virtual Visit available
Winter Park, FL
"Outstanding Doctor... easy to talk to and under stand ..." View Profile

Dr. Tracy Ching-Hue Burton

Pediatrics
18 years exp
Accepting New Patients
Virtual Visit available
Franklin, TN
Dr. Tracy Burton is a Board-Certified Pediatrician with over 10 years of experience providing expert care to children and families as the Chief Medical Officer at As You Are. View Profile

Eric Harker

Internal Medicine
Spent time with me
25 years exp
Accepting New Patients
Virtual Visit available
Lyons, CO
"He now practices at Iora Primary Care in Arvada. Excellent." 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

Dr. Tamar Heisler

Pediatrics
18 years exp
Accepting New Patients
Virtual Visit available
Franklin, TN
Dr. Tami Heisler is a Board-Certified Pediatrician with over 10 years of experience providing compassionate and personalized care to children and their families at As You Are. View Profile

All Results

Dr. Satya Sarma, MD

Internal Medicine
35 years exp
Rancho Cucamonga, CA3.9 mi
Dr. Satya Sarma, MD is a health care provider primarily located in Rancho Cucamonga, CA, with another office in Rancho Cucamonga, CA. She has 35 years of experience. View Profile

Dr. Thanhan Nguyen, DO

Family Medicine
23 years exp
Accepting New Patients
Pomona, CA7.5 mi
"She really explains things well and is very responsive." View Profile

Dr. Lakshita Gupta, MD

Internal Medicine
11 years exp
Accepting New Patients
Upland, CA3.3 mi
Dr. LAKSHITA GUPTA, MD is a BOARD CERTIFIED INTERNISTDr. Lakshita Gupta is an internal medicine physician at Rancho Wellness, serving patients at both the Rancho Cucamonga and Upland locations. View Profile

Dr. Hsiang-Shien Shien Chen, MD

Internal Medicine
59 years exp
Accepting New Patients
Chino, CA3.8 mi
"As a person in healthcare I am able to weed out the good doctors from the bad. Dr. Chen was intelligent and caring." View Profile

Dr. Afshin Saadat, MD

Internal Medicine
29 years exp
Upland, CA3.4 mi
Dr. Afshin Saadat, MD is a health care provider primarily located in Upland, CA, with other offices in Upland, CA and Covina, CA(and 3 other locations). View Profile

Dr. Mukhtair Singh Kundi, MD

Neurology
49 years exp
Accepting New Patients
RANCHO CUCAMONGA, CA3.8 mi
"He takes his time and listens to your concerns and acknowledges your problems and orders the appropriate tests and his staff is great" View Profile

Dr. Isidore Kofibrekyi Kwaw, MD

Internal Medicine
38 years exp
Montclair, CA4.3 mi
"FAST, EASY, AND EYE OPENING." View Profile

Dr. Arnold Ira Roth, MD

Internal Medicine
46 years exp
Accepting New Patients
Rancho Cucamonga, CA5.9 mi
"Honest caring knowledgeable.been my physician for 10yrs plus. Kept me healthy.thank you Dr. Roth" View Profile

Dr. Byung Don Ahn, MD

Cardiovascular Disease
48 years exp
Accepting New Patients
UPLAND, CA3.4 mi
"Great doctor" View Profile

Dr. Jeffrey Unger, MD

Family Medicine
Accepting New Patients
Rancho Cucamonga, CA4.2 mi
Dr. Jeffrey Unger, MD is a health care provider primarily located in Rancho Cucamonga, CA. His specialties include Internal Medicine, Family Medicine. View Profile

Dr. Siddharth Bhargava

Ophthalmology
7 years exp
Accepting New Patients
Upland, CA3.3 mi
"The staff was extremely friendly and helpful. Dr Bhargave took his time and explained everything too me and made sure I understood everything." View Profile

Dr Jaisha Mathew, MD

Internal Medicine
18 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr Jaisha Mathew, MD is a health care provider primarily located in Upland, CA, with another office in Upland, CA. She has 18 years of experience. View Profile

Dr. Teri Lynn Rhetta, MD

Pediatrics
22 years exp
Rancho Cucamonga, CA3.9 mi
"I wanted to thank you in overseeing and aiding in saving my son's life!" View Profile

Dr. Geeta Jayantilal Patwa, MD

Internal Medicine
55 years exp
Pomona, CA7.3 mi
Dr. Geeta Jayantilal Patwa, MD is a health care provider primarily located in Pomona, CA. She has 55 years of experience. Her specialties include Internal Medicine. View Profile

Dr. Jasvir Singh Sandhu, MD

Anesthesiology
45 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Jasvir Singh Sandhu, MD is a health care provider primarily located in Upland, CA, with other offices in Corona, CA and Upland, CA(and 3 other locations). View Profile

Dr. Janice Jeehyun Hwang, MD

Diagnostic Radiology
31 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Janice Jeehyun Hwang, MD is a health care provider primarily located in Upland, CA, with other offices in Fullerton, CA and West Covina, CA(and 37 other locations). View Profile

Dr. Ai-Jen Wang, MD

Internal Medicine
28 years exp
Upland, CA3.4 mi
Dr. Ai-Jen Wang, 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. Sanjiv Kumar Jain, DO

Internal Medicine
42 years exp
Accepting New Patients
Chino, CA3.7 mi
"Doctor Jain, saw me in an emergency matter that required me to go to a hospital. His staff were caring and welcoming. I highly recommend him, as he saved my life." View Profile

Dr. Mark Robert Bell, MD

Emergency Medicine
33 years exp
Accepting New Patients
Chino, CA3.9 mi
Dr. Mark Robert Bell, MD is a health care provider primarily located in Chino, CA, with other offices in Van Nuys, CA and Huntington Beach, CA(and 5 other locations). View Profile

Dr. Nazli A Janjua, MD

Neurology
29 years exp
Pomona, CA7.1 mi
"She is brilliant, caring and wonderful!" View Profile

Dr. Bipin Chimanlal Patadia, MD

Cardiovascular Disease
56 years exp
Accepting New Patients
Upland, CA3.4 mi
"Dr. Patadia has cared for my father for several years." View Profile

Dr. Ricardo Eduardo Saca, MD

Internal Medicine
39 years exp
Upland, CA3.4 mi
Dr. Ricardo Eduardo Saca, MD is a health care provider primarily located in Upland, CA, with another office in Upland, CA. He has 39 years of experience. View Profile

Dr. John Carl Goffigan, MD

Diagnostic Radiology
28 years exp
Upland, CA3.4 mi
"My wife was rushed to San Antonio Hospital emergency room on Sunday, Oct." View Profile

Dr. Jason Shou, MD

Diagnostic Radiology
22 years exp
Chino, CA3.9 mi
Dr. Jason Shou, MD is a health care provider primarily located in Chino, CA, with other offices in Fullerton, CA and Placentia, CA(and 16 other locations). View Profile

Dr. Ankush Sharma, MD

Gastroenterology
18 years exp
Accepting New Patients
Chino, CA3.9 mi
"Dr Sharma is the best and the personal at the facility was also great, very polite and attentive, they made my procedure go very well and quickly. Thank you " View Profile

Dr. Peter Michael Galich, MD

Emergency Medicine
22 years exp
Chino, CA3.9 mi
Dr. Peter Michael Galich, MD is a health care provider primarily located in Chino, CA, with other offices in Los Angeles, CA and Santa Monica, CA(and 2 other locations). View Profile

Dr. Tarek Toma Moqattash, MD

Internal Medicine
18 years exp
Rancho Cucamonga, CA4.0 mi
Dr. Tarek Toma Moqattash, MD is a health care provider primarily located in Rancho Cucamonga, CA. He has 18 years of experience. View Profile

Dr. Leonardo Satei Moqattash, MD

Internal Medicine
12 years exp
Rancho Cucamonga, CA4.0 mi
Dr. Leonardo Satei Moqattash, MD is a health care provider primarily located in Rancho Cucamonga, CA. He has 12 years of experience. His specialties include Internal Medicine. View Profile

Dr. Ramesh Chander Bansal, MD

Cardiovascular Disease
52 years exp
Upland, CA3.4 mi

Dr. Christina Ching-Hsiu Chen, MD

Gastroenterology
40 years exp
Chino, CA3.9 mi
Dr. Christina Ching-Hsiu Chen, MD is a health care provider primarily located in Chino, CA, with other offices in Whittier, CA and San Gabriel, CA. She has 40 years of experience. View Profile

Dr. Rishi Talwar, MD

Internal Medicine
14 years exp
Upland, CA3.4 mi
Dr. Rishi Talwar, MD is a health care provider primarily located in Upland, CA, with another office in Chino, CA. He has 14 years of experience. View Profile

Dr. Dwaraknath Ponnalur Reddy, MD

Gastroenterology
55 years exp
Upland, CA3.4 mi
"My husband and I have both been with Dr Reddy for well over 20 years. He is thorough, and takes time to explain everything and answer any questions you have." View Profile

Dr. Shahriar Jarchi

Internal Medicine
23 years exp
Accepting New Patients
Rancho Cucamonga, CA4.5 mi
Dr. Shahriar Jarchi is a health care provider primarily located in Rancho Cucamonga, CA, with other offices in Downey, CA and Gardena, CA(and 8 other locations). View Profile

Dr. Carlos Ruben Canizales, MD

Cardiovascular Disease
63 years exp
Upland, CA3.4 mi
"Outstanding in every way. Saved my life." View Profile

Dr. Andrea Sung Tieng, MD

Gastroenterology
23 years exp
Upland, CA3.4 mi
Dr. Andrea Sung Tieng, MD is a health care provider primarily located in Upland, CA, with another office in Upland, CA. She has 23 years of experience. View Profile

Dr. David Nghia Chinh Dang

Diagnostic Radiology
23 years exp
Upland, CA3.4 mi
Dr. David Nghia Chinh Dang is a health care provider primarily located in Upland, CA. He has 23 years of experience. View Profile

Dr. Padmasri Vinaya Konduri, MD

Internal Medicine
36 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Padmasri Vinaya Konduri, MD is a health care provider primarily located in Upland, CA, with other offices in Northridge, CA and Banning, CA(and 2 other locations). View Profile

Dr. Nitanth Reddy Vangala, MD

Interventional Cardiology
21 years exp
Accepting New Patients
Upland, CA3.4 mi
"Dr. Vangala is an excellent doctor. He is very professional, takes his time and explaines his views. He is very thorough." View Profile

Dr. Ashok Kumar Nath, MD

Nephrology
28 years exp
Accepting New Patients
Rancho Cucamonga, CA4.5 mi
Dr. Ashok Kumar Nath, MD is a health care provider primarily located in Rancho Cucamonga, CA, with other offices in Banning, CA and San Bernardino, CA(and 10 other locations). View Profile

Dr. Victor Akwei Pappoe, MD

Internal Medicine
53 years exp
Accepting New Patients
Pomona, CA7.0 mi
Dr. Victor Akwei Pappoe, MD is a health care provider primarily located in Pomona, CA, with other offices in Glendora, CA and Pomona, CA(and 3 other locations). View Profile

Dr. Hetalben Gopalbhai Makwana, MD

Internal Medicine
19 years exp
Accepting New Patients
Upland, CA3.5 mi
Dr. Hetalben Gopalbhai Makwana, MD is a health care provider primarily located in Upland, CA, with other offices in Upland, CA and Victorville, CA. She has 19 years of experience. View Profile

Dr. Deborah Anghesom Negusse, MD

Gastroenterology
22 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Deborah Anghesom Negusse, MD is a health care provider primarily located in Upland, CA, with other offices in Upland, CA and Rancho Cucamonga, CA(and 7 other locations). View Profile

Dr. Khai Do, MD

Internal Medicine
41 years exp
Accepting New Patients
Montclair, CA3.9 mi
Dr. Khai Do, MD is a health care provider primarily located in Montclair, CA, with other offices in Montclair, CA and Westminster, CA. He has 41 years of experience. View Profile

Dr. Hammad Omer Khan, MD

Interventional Cardiology
26 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Hammad Omer Khan, MD is a health care provider primarily located in Upland, CA, with other offices in Upland, CA and Pomona, CA(and 2 other locations). View Profile

Dr. Dennis Harold Nicholson, MD

Sleep Medicine
59 years exp
Accepting New Patients
Claremont, CA5.8 mi
"I saw him for a second opinion about sleep apnea. He spent hour and a half with me - something unheard of in this day and age." View Profile

Dr. Younis Ali, MD

Internal Medicine
50 years exp
Upland, CA3.4 mi
Dr. Younis Ali, MD is a health care provider primarily located in Upland, CA, with other offices in Anaheim, CA and San Dimas, CA(and 6 other locations). View Profile

Dr. Duc Dinh Vo, MD

Pediatrics
54 years exp
Accepting New Patients
Upland, CA3.8 mi
Dr. Duc Dinh Vo, MD is a health care provider primarily located in Upland, CA, with another office in Upland, CA. He has 54 years of experience. View Profile

Dr. John Han-Kyun Choie, MD

Cardiovascular Disease
52 years exp
Chino, CA3.9 mi
Dr. John Han-Kyun Choie, MD is a health care provider primarily located in Chino, CA, with another office in Pomona, CA. He has 52 years of experience. View Profile

Dr. Raffi Parsegh Kartalian, MD

Emergency Medicine
26 years exp
Pomona, CA7.5 mi
"Dr. Kartalian is an excellent ER doc. He is very attentive and listens." View Profile

Dr. Gene George Hong, MD

Internal Medicine
37 years exp
Chino, CA3.9 mi
"Dr. Hong is an incredibly kind and compassionate healer. His background in Western and Eastern medical techniques assures you of the best of both practices." View Profile

Dr. Gerardo Medina General, MD

Internal Medicine
46 years exp
Accepting New Patients
Chino, CA3.9 mi
Dr. Gerardo Medina General, MD is a health care provider primarily located in Chino, CA, with another office in Chino, CA. He has 46 years of experience. View Profile

Dr. Eric Chen

Radiation Oncology
7 years exp
UPLAND, CA5.3 mi
Dr. Eric Chen is a health care provider primarily located in UPLAND, CA, with other offices in Orange, CA and Irvine, CA(and 4 other locations). He has 7 years of experience. View Profile

Dr. Neal Eliot Slatkin, MD

Internal Medicine
50 years exp
RANCHO CUCAMONGA, CA6.6 mi
Dr. Neal Eliot Slatkin, MD is a health care provider primarily located in RANCHO CUCAMONGA, CA. He has 50 years of experience. View Profile

Dr. David Hongtae Kim, MD

Internal Medicine
33 years exp
Rancho Cucamonga, CA3.9 mi
"On of the most impressive physicians I've had the please of meeting...wow are they lucky to have him at St. Helena." View Profile

Dr. Thuy Thanh Nguyen, MD

Internal Medicine
31 years exp
Montclair, CA4.5 mi
Dr. Thuy Thanh Nguyen, MD is a health care provider primarily located in Montclair, CA, with other offices in Santa Ana, CA and Fountain Valley, CA(and 2 other locations). View Profile

Dr. Hamidreza Torshizy, MD

Diagnostic Radiology
20 years exp
Pomona, CA7.0 mi
"Dr Torshizy performed my biopsy. The procedure was smooth and painless. He explained everything to me thoroughly. He was compassionate and professional." View Profile

Dr. Sapna Sangani Rasania

Rheumatology
19 years exp
Pomona, CA7.3 mi
"Excellent and polite doctor" View Profile

Dr. Nilesh Navin Patel, MD

Infectious Disease
35 years exp
Accepting New Patients
Chino, CA3.9 mi
Dr. Nilesh Navin Patel, MD is a health care provider primarily located in Chino, CA, with other offices in West Covina, CA and Baldwin Park, CA(and 13 other locations). View Profile

Dr. Monish Jatin Laxpati, MD

Diagnostic Radiology
19 years exp
Accepting New Patients
Pomona, CA7.3 mi
"I was sent to Alinea for a mammogram, since I have no insurance and they are able to provide the care for free. The office was very clean and modern with friendly staff." View Profile

Dr. Gaurav Rameshbhai Parikh, MD

Interventional Cardiology
25 years exp
Accepting New Patients
Upland, CA3.4 mi
"Excellevery Dr. Great english speaker....knowledgeable cardiologist and surgeon" 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 Ontario 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 Ontario 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 Ontario who offer virtual appointments?
Select the "Virtual Visit" filter at the top of the search page to see Internists providing telehealth services in Ontario. 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 Ontario?
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 Ontario?
Visit individual doctor profiles to see their current scheduling availability in Ontario. 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 Ontario have the shortest wait times?
Review the Ratings & Reviews card on each provider's profile to see their average wait time in Ontario. This helps you find an Internist that doesn’t make their patients wait too long.
Can I schedule appointments with Internists in Ontario 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 Ontario with evening or weekend hours?
Check the Locations card on each profile to view office hours for Internists in Ontario. 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 Ontario?
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 Ontario 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 Ontario 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.