697 Internists Found in Ontario, CA – Page 2

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 61 to 120 of 697 Internists.

Filter Internists Results

Featured Results

Dr. Nima Ghadimi, MD

Internal Medicine
Gave an accurate diagnosis
29 years exp
Accepting New Patients
Virtual Visit available
Scottsdale, AZ
"Dr. Ghadimi is an exceptional doctor. If you need a Telehealth visit, the service is outstanding unless one is scheduled with the AWFUL M.A. Julian Zermeno." 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. Virginia Von Schaefer, MD

Oncology
Flexible scheduling
43 years exp
Accepting New Patients
Virtual Visit available
San Clemente, CA
"As I sit here in the VVS MD IV treatment room with 3 other patients, we are all sharing our stories." 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. Roopa Chari, MD

Integrative Medicine
Staff was courteous
31 years exp
Accepting New Patients
Virtual Visit available
Encinitas, CA
"I struggled with eczema on my skin and scalp most of my life. About 3 months before my first appointment with Dr. Chari, my eczema started to flare up very badly. " View Profile

Trisha Khanna, MD, FAAD

Dermatology
Flexible scheduling
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. 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. Lubna Isho, DO

Family Medicine
Flexible scheduling
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

All Results

Dr. Andrew Yue, MD

Internal Medicine
16 years exp
Accepting New Patients
Ontario, CA2.9 mi
"Miracle care I am completely happy with the care I have received since the beginning of my journey. I will always refer COH to anyone I come across that needs "miracle care"" View Profile

Dr. Nutan Bhaskar, MD

Pulmonology
23 years exp
Accepting New Patients
Ontario, CA1.4 mi
"I was able to get help with my cough that I had been having for months. He was very nice along with his staff" View Profile

Garegin Melkonyan

Nurse Practitioner
Accepting New Patients
North Hollywood, CA
Garegin Melkonyan is a health care provider primarily located in North Hollywood, CA. View Profile

Dr. Mee Na Song

Family Medicine
Accepting New Patients
Sacramento, CA
Dr. Mee Na Song is a health care provider primarily located in Sacramento, CA. Their specialties include Internal Medicine, Family Medicine. View Profile

Dr. May Reem Bakir, MD,FACC

Cardiovascular Disease
15 years exp
Accepting New Patients
Oakbrook Terrace, IL
Dr. May Reem Bakir, MD,FACC is a health care provider primarily located in Oakbrook Terrace, IL, with other offices in Maywood, IL and Maywood, IL(and 2 other locations). View Profile

Jason Jacobson, MSN, FNP-C, ENP-C

Nurse Practitioner
17 years exp
Accepting New Patients
Jacksonville, FL
Jason Jacobson, MSN, FNP-C, ENP-C is a health care provider primarily located in Jacksonville, FL. He has 17 years of experience. View Profile

Dr. Jezwah Harris, JD, MSN, MBA

Internal Medicine
Accepting New Patients
North Miami Beach, FL
Dr. Jezwah Harris, JD, MSN, MBA is a health care provider primarily located in North Miami Beach, FL. View Profile

Dr. Nagasamudra Shamarao Ashok, MD

Internal Medicine
52 years exp
Accepting New Patients
ONTARIO, CA3.3 mi
"DR.ASHOK IS A CARING DOCTOR,ITS WORTH WAITING BECAUSE HE WILL TREAT YOU AS A PATIENT SHOULD BE TREATED WITH RESPECT." View Profile

Dr. Khader Kamel Abounasr, MD

Pulmonology
22 years exp
Accepting New Patients
Ontario, CA1.4 mi
Dr. Khader Kamel Abounasr, MD is a health care provider primarily located in Ontario, CA, with other offices in Pomona, CA and Upland, CA(and 4 other locations). View Profile

Dr. Zeron Ghazarian, MD

Critical Care Medicine
16 years exp
Accepting New Patients
Ontario, CA1.4 mi
"Dr. Zeron Ghazarian took great care of my mother. He is a very kind, caring, and amazing doctor." View Profile

Dr. Sohanjeet Singh Bassi, MD

Infectious Disease
45 years exp
Ontario, CA1.4 mi
"Dr. Bassi is one of the most knowledgeable infectious disease doctors out there. Very kind and humble as well." View Profile

Dr. Satish Kumar Choudhary, MD

Cardiovascular Disease
49 years exp
Ontario, CA1.4 mi
Dr. Satish Kumar Choudhary, MD is a health care provider primarily located in Ontario, CA, with other offices in Rancho Cucamonga, CA and Ontario, CA. View Profile

Dr. Zhigang Song, MD

Gastroenterology
31 years exp
Ontario, CA1.7 mi
Dr. Zhigang Song, MD is a health care provider primarily located in Ontario, CA, with another office in Ontario, CA. He has 31 years of experience. View Profile

Dr. Rany Woo, MD

Internal Medicine
13 years exp
Accepting New Patients
Ontario, CA1.7 mi
Dr. Rany Woo, MD is a health care provider primarily located in Ontario, CA, with other offices in Pasadena, CA and Newport Beach, CA(and 9 other locations). View Profile

Dr. Anu Mittal, DO

Internal Medicine
20 years exp
Ontario, CA1.7 mi
"She is a very caring doctor. She took time to listen and I received excellent care from her. I am very upset that she is gone." View Profile

Dr. David Gerald Talukdar, MD

Internal Medicine
25 years exp
Ontario, CA1.7 mi
Dr. David Gerald Talukdar, MD is a health care provider primarily located in Ontario, CA. He has 25 years of experience. His specialties include Internal Medicine. View Profile

Dr. Devin Edwin Shahverdian, MD

Internal Medicine
19 years exp
Ontario, CA1.7 mi
Dr. Devin Edwin Shahverdian, MD is a health care provider primarily located in Ontario, CA, with another office in Fontana, CA. He has 19 years of experience. View Profile

Dr. Aamir Zain Jamal, MD

Nephrology
37 years exp
Accepting New Patients
Ontario, CA1.7 mi
Dr. Aamir Zain Jamal, MD is a health care provider primarily located in Ontario, CA, with other offices in West Covina, CA and San Dimas, CA(and 13 other locations). View Profile

Dr. Katharine Chiu, MD

Geriatric Medicine
22 years exp
Ontario, CA1.7 mi
Dr. Katharine Chiu, MD is a health care provider primarily located in Ontario, CA, with another office in Ontario, CA. She has 22 years of experience. View Profile

Dr. Manjusha Gupta, MD

Internal Medicine
27 years exp
Ontario, CA1.8 mi
"Dr. Gupta spends time with each patient. She is very skilled and has an easy pleasant manner." View Profile

Dr. Anthony Miranda, MD

Internal Medicine
20 years exp
Accepting New Patients
Orlando, FL
"Excellent physician" View Profile

Dr. Blake Daniel Crawford, MD

Ophthalmology
19 years exp
Ontario, CA1.7 mi
Dr. Blake Daniel Crawford, MD is a health care provider primarily located in Ontario, CA. He has 19 years of experience. His specialties include Internal Medicine, Ophthalmology. View Profile

Dr. Chirag Kiranchandra Vaidya, MD

Nephrology
24 years exp
Accepting New Patients
Ontario, CA1.4 mi
"Wonderful, caring, and knowledgeable doctor and staff. Friendly, comfortable and efficient. Love Dr. Vaidya and staff." View Profile

Dr. Karen Michelle Guiang, DO

Internal Medicine
19 years exp
Accepting New Patients
Ontario, CA1.4 mi
"Working with Dr Guiang has been a breath of fresh air. Compassionate and committed to seeing this through to a healthy outcome has given me hope." View Profile

Dr. Paymon Mesgarzadeh, MD

Cardiovascular Disease
22 years exp
Ontario, CA1.7 mi
"Spends time to listen and goes over everything thoroughly." View Profile

Dr. Timothy Joseph Devine, MD

Cardiovascular Disease
25 years exp
Ontario, CA1.7 mi
"He is awesome! I felt so comfortable with him. He took his time and was caring and so nice." View Profile

Dr. Michael Hien Bien, MD

Nephrology
27 years exp
Accepting New Patients
Ontario, CA1.4 mi
Dr. Michael Hien Bien, MD is a health care provider primarily located in Ontario, CA, with other offices in Covina, CA and Ontario, CA(and 16 other locations). View Profile

Dr. Malak Philippe Zacca Shammas, MD

Internal Medicine
33 years exp
Accepting New Patients
Ontario, CA1.7 mi
Dr. Malak Philippe Zacca Shammas, MD is a health care provider primarily located in Ontario, CA, with other offices in Beverly Hills, CA and Beverly Hills, CA(and 3 other locations). View Profile

Dr. Maria Lourdes San Gabriel Agustin, MD

Internal Medicine
27 years exp
Accepting New Patients
Ontario, CA1.7 mi
"I really enjoyed having her for my doctor its been a long time for me to find a doctor that takes that extra time to listen to I would recommended her to anyone that needs a good doctor very caring." View Profile

Dr. Dung Anh Nguyen, MD

Critical Care Medicine
29 years exp
Accepting New Patients
Ontario, CA1.8 mi
"Dr. Nguyen is an excellent communicator. His skill as a physician is brilliant and compassionate. His care for my family member was precisely what was needed." View Profile

Dr. Que Hp Nguyen, MD

Internal Medicine
28 years exp
Accepting New Patients
Ontario, CA1.7 mi
"She spent time with me during my visit. She called me on a Saturday evening to tell me Lab results" View Profile

Dr. Carolyn Anne Hardy, MD

Internal Medicine
23 years exp
Accepting New Patients
Ontario, CA1.7 mi
"Listens to her patients. Works on overall health. Not just the immediate need" View Profile

Dr. Eric James Gureghian, MD

Internal Medicine
32 years exp
Ontario, CA3.6 mi
Dr. Eric James Gureghian, MD is a health care provider primarily located in Ontario, CA. He has 32 years of experience. His specialties include Internal Medicine. View Profile

Dr. Venkata Subba Reddy Pulakanti

Internal Medicine
48 years exp
Ontario, CA1.7 mi
"the staff and doctor are great!" View Profile

Dr. Solomon Christophe Huang, MD

Nephrology
16 years exp
Accepting New Patients
Ontario, CA1.4 mi
"Dr. Soloman Huang doesn't wait. He explains everything to you. He is very concerned with your treatment and he treats you like your the most important person. He cares." View Profile

Dr. Michael Alan Schwartz, MD

Internal Medicine
35 years exp
Ontario, CA1.7 mi
Dr. Michael Alan Schwartz, MD is a health care provider primarily located in Ontario, CA, with another office in Ontario, CA. He has 35 years of experience. View Profile

Dr. Tin Duc Nguyen, MD

Internal Medicine
27 years exp
Ontario, CA1.7 mi
Dr. Tin Duc Nguyen, MD is a health care provider primarily located in Ontario, CA, with other offices in Chino, CA and Baldwin Park, CA(and 2 other locations). View Profile

Dr. Nima Naimi, DO

Nephrology
17 years exp
Accepting New Patients
Ontario, CA1.4 mi
"Dr. Naimi has been taking care of my mother for the past several years." View Profile

Dr. Erum Waqar Sethi, MD

Diagnostic Radiology
24 years exp
Ontario, CA1.7 mi
Dr. Erum Waqar Sethi, MD is a health care provider primarily located in Ontario, CA, with another office in Fontana, CA. She has 24 years of experience. View Profile

Dr. Alireza Heshmat, MD

Internal Medicine
24 years exp
Ontario, CA1.7 mi
Dr. Alireza Heshmat, MD is a health care provider primarily located in Ontario, CA. He has 24 years of experience. View Profile

Dr. Hussein Merza, MD

Oncology
19 years exp
Accepting New Patients
Ontario, CA1.7 mi
"I would recommend him to all my family members" View Profile

Dr. Salwa Samy Farag, MD

Internal Medicine
46 years exp
Ontario, CA1.7 mi
Dr. Salwa Samy Farag, MD is a health care provider primarily located in Ontario, CA, with other offices in Fontana, CA and Pasadena, CA(and 2 other locations). View Profile

Dr. Eduardo Juan Nam, MD

Nephrology
24 years exp
Accepting New Patients
Ontario, CA1.4 mi
Dr. Eduardo Juan Nam, MD is a health care provider primarily located in Ontario, CA, with other offices in San Dimas, CA and Rancho Cucamonga, CA(and 12 other locations). View Profile

Dr. Liwen Han, MD

Internal Medicine
34 years exp
Ontario, CA1.7 mi
Dr. Liwen Han, MD is a health care provider primarily located in Ontario, CA, with other offices in Fontana, CA and Baldwin Park, CA(and 2 other locations). View Profile

Dr. Jieli Li, MD

Internal Medicine
23 years exp
Accepting New Patients
Ontario, CA1.7 mi
Dr. Jieli Li, MD is a health care provider primarily located in Ontario, CA, with other offices in Baldwin Park, CA and Ontario, CA. She has 23 years of experience. View Profile

Dr. Richard Allan Shinto, MD

Internal Medicine
45 years exp
Ontario, CA2.9 mi
Dr. Richard Allan Shinto, MD is a health care provider primarily located in Ontario, CA. They have 45 years of experience. Their specialties include Internal Medicine, Pulmonology. View Profile

Dr. Hon Lim Wong, DO

Internal Medicine
15 years exp
Ontario, CA1.7 mi
Dr. Hon Lim Wong, DO is a health care provider primarily located in Ontario, CA, with other offices in Baldwin Park, CA and Ontario, CA. He has 15 years of experience. View Profile

Dr. Bryan Yen-Liang Liou, MD

Neurology
19 years exp
Accepting New Patients
Ontario, CA1.7 mi
Dr. Bryan Yen-Liang Liou, MD is a health care provider primarily located in Ontario, CA, with another office in Ontario, CA. He has 19 years of experience. View Profile

Dr. Joselito P Babaran, MD

Internal Medicine
55 years exp
Accepting New Patients
Ontario, CA1.4 mi
Dr. Joselito P Babaran, MD is a health care provider primarily located in Ontario, CA, with other offices in Ontario, CA and Panorama City, CA(and 3 other locations). View Profile

Dr. Irene Bakman, MD

Infectious Disease
20 years exp
Ontario, CA1.4 mi
"I have had nothing but great experiences with Dr Bakman . She is very knowledgeable and caring." View Profile

Dr. Hussein Abidali, DO

Gastroenterology
Ontario, CA1.4 mi
Dr. Hussein Abidali, DO is a health care provider primarily located in Ontario, CA, with other offices in Pomona, CA and Ontario, CA(and 3 other locations). View Profile

Dr. Subhash Chandra Varshney, MD

Pulmonology
59 years exp
Accepting New Patients
Ontario, CA1.4 mi
Dr. Subhash Chandra Varshney, MD is a health care provider primarily located in Ontario, CA, with other offices in Pomona, CA and Pomona, CA(and 3 other locations). View Profile

Dr. Omair Mohammad Javed, MD

Cardiovascular Disease
14 years exp
Ontario, CA1.7 mi

Dr. Aneeta Ramakrishna Kiran, MD

Rheumatology
25 years exp
Ontario, CA1.7 mi
Dr. Aneeta Ramakrishna Kiran, MD is a health care provider primarily located in Ontario, CA, with another office in Ontario, CA. She has 25 years of experience. View Profile

Dr. Dianne Elizabeth Quintana, MD

Pediatrics
13 years exp
Accepting New Patients
Ontario, CA1.7 mi
"An absolutely amazing PCP who knows exactly what she is talking about and is very precise and thoughtful." View Profile

Dr. Brandon Edward Chock, MD

Endocrinology, Diabetes & Metabolism
20 years exp
Ontario, CA1.7 mi
Dr. Brandon Edward Chock, MD is a health care provider primarily located in Ontario, CA. He has 20 years of experience. View Profile

Dr. Laura Lan Nguyen, MD

Internal Medicine
23 years exp
Ontario, CA1.7 mi
Dr. Laura Lan Nguyen, MD is a health care provider primarily located in Ontario, CA, with other offices in Lakewood, CA and Downey, CA. She has 23 years of experience. View Profile

Dr. Kanokrat Suksompoth, MD

Infectious Disease
27 years exp
Ontario, CA1.4 mi
"I have witnessed this physicians brilliance on a few occasions. I am honored to have sent her work. Amazing clinician" View Profile

Dr. Michael J Wade, MD

Family Medicine
37 years exp
Accepting New Patients
Ontario, CA4.0 mi
Dr. Michael J Wade, MD is a health care provider primarily located in Ontario, CA, with other offices in Riverside, CA and Corona, CA(and 6 other locations). View Profile

Dr. David Chiming Niu, MD

Anesthesiology
19 years exp
Ontario, CA1.7 mi
Dr. David Chiming Niu, MD is a health care provider primarily located in Ontario, CA, with another office in Ontario, CA. He has 19 years of experience. 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.