697 Internists Found in Ontario, CA – Page 5

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 241 to 300 of 697 Internists.

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Featured Results

Dr. Roopa Chari, MD

Integrative Medicine
Gave an accurate diagnosis
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

Eric Harker

Internal Medicine
Flexible scheduling
25 years exp
Accepting New Patients
Virtual Visit available
Lyons, CO
"He now practices at Iora Primary Care in Arvada. Excellent." 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. Rameschandra D Bambhania, MD

Dermatology
41 years exp
Accepting New Patients
Virtual Visit available
Tustin, CA
"Dr. Bambhania is a godsend to me, I would have given 100+ stars if possible..." 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. Nima Ghadimi, MD

Internal Medicine
Provided follow-up after the visit
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

Dr. Alaa Hajal, MD

Internal Medicine
15 years exp
Accepting New Patients
Virtual Visit available
Diamond Bar, CA
Dr. Alaa Hajal is redefining the primary care experience at La Vista Medical Center, serving as a cornerstone of health and vitality for the Diamond Bar community. View Profile

Dr. Adama Diarra, DO

Internal Medicine
Gave an accurate diagnosis
14 years exp
Accepting New Patients
Virtual Visit available
Tigard, OR
"Dr. Adama Diarra was my 84 year old father's PCP. Dr. Diarra was very pro-active in adjusting his medications as his disease sates progressed and his kidney function declined." View Profile

All Results

Dr. Bashar G Saad, MD

Endocrinology, Diabetes & Metabolism
39 years exp
Accepting New Patients
UPLAND, CA3.4 mi
Dr. Bashar G Saad, MD is a health care provider primarily located in UPLAND, CA, with other offices in San Bernardino, CA and Glendora, CA(and 3 other locations). View Profile

Dr. Rohinder Kaur Sandhu, MD

Critical Care Medicine
46 years exp
Accepting New Patients
UPLAND, CA3.5 mi
"Great Doctor!" View Profile

Dr. Sadiq Lafta Altamimi, MD

Neurology
22 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Sadiq Lafta Altamimi, MD is a health care provider primarily located in Upland, CA, with other offices in RANCHO CUCAMONGA, CA and San Bernardino, CA(and 3 other locations). View Profile

Dr. Daryoosh Valamanesh, MD

Endocrinology, Diabetes & Metabolism
47 years exp
Upland, CA3.4 mi
"I first met Doctor Valamanesh as he woke me out of my coma. I had been placed in a coma due to intense pain. That was 13 years ago now and he is now my PCP." View Profile

Dr. Mao-Jin Fu, MD

Family Medicine
57 years exp
Chino, CA3.8 mi
"Dr. Fu has been my doctor for many, many years. He is a wonderful doctor and his staff are great!" View Profile

Dr. Faramarz Alav, MD

Internal Medicine
46 years exp
Accepting New Patients
Upland, CA3.4 mi
"Dr Alav staff are polite, professional, hard working and caring. Like I mentioned before I would refer friends and family." View Profile

Dr. Carlos Robert Vigil, DO

Internal Medicine
29 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Carlos Robert Vigil, DO is a health care provider primarily located in Upland, CA, with other offices in Colton, CA and Upland, CA. He has 29 years of experience. View Profile

Dr. Azhar Muhammad Majeed, MD

Internal Medicine
28 years exp
Accepting New Patients
Upland, CA3.3 mi
Dr. Azhar Muhammad Majeed, MD is a health care provider primarily located in Upland, CA, with other offices in Upland, CA and Upland, CA. He has 28 years of experience. View Profile

Dr. Wayne Hamilton Martin, MD

Ophthalmology
43 years exp
Accepting New Patients
Chino, CA3.9 mi
"He is a good doctor . He care a lot for his patients. He take good care of my husband eyes for cataract surgery. Thank you very much doctor Martin and his staffs." View Profile

Dr. Douglas Owen Wayne Eaton, MD

Internal Medicine
41 years exp
Rancho Cucamonga, CA3.8 mi
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. Susan Biegel, MD

Internal Medicine
38 years exp
Accepting New Patients
Upland, CA4.3 mi
Dr. Susan Biegel, MD is a health care provider primarily located in Upland, CA. She has 38 years of experience. View Profile

Dr. Bhupatrai Haribhai Desai, MD

Neurology
56 years exp
Accepting New Patients
Upland, CA3.4 mi
"Dr Desai takes a special interest in all of his patients. He is kind, gentle and most knowledgeable. He has helped me in innumerable ways." View Profile

Dr. Jalal Mohammed Badday, MD

Internal Medicine
48 years exp
Accepting New Patients
Upland, CA3.8 mi
"Dr. Badday is a brilliant doctor. He is the best doctor I ever had!" View Profile

Dr. Leena Satish Sheth, MD

Family Medicine
45 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Leena Satish Sheth, MD is a health care provider primarily located in Upland, CA, with other offices in Rancho Cucamonga, CA and Pomona, CA(and 3 other locations). View Profile

Dr. Bao Cong Tran, MD

Internal Medicine
57 years exp
Pomona, CA7.5 mi
"Excellent caring Doctor" View Profile

Dr. Harvey Donald Cohen, MD

Geriatric Medicine
50 years exp
Accepting New Patients
Upland, CA3.4 mi
"My husband (84 yrs) and I have been seeing Dr. Cohen for a variety of illnesses for more than 15 years. He is caring, thorough and extraordinarily knowledgeable." View Profile

Dr. Joshua Gary Gibbs

Allergy & Immunology
25 years exp
Accepting New Patients
Rancho Cucamonga, CA3.7 mi
"The whole office was very kind and friendly. Dr. Gibbs was patient and he actually let me ask questions; which I appreciate." View Profile

Dr. Parveen Virani, MD

Internal Medicine
44 years exp
Upland, CA3.4 mi
"Excellent Doctor! My primary for over 10 years!" View Profile

Dr. Ebrahim Sadeghi Najafabadi, MD

Rheumatology
23 years exp
Accepting New Patients
Upland, CA3.4 mi
"I'm very much happy with my experience with Dr. Najafabadi. He willingly listens and then discusses your treatment options with you." View Profile

Dr. Caleb Chin Tao Ng

Ophthalmology
11 years exp
Accepting New Patients
Upland, CA3.3 mi
"I think he is really professional ophthalmologist and I like how he explained the prognosis of my eyes." View Profile

Dr. Anil Kumar Bhandari, MD

Cardiovascular Disease
52 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Anil Kumar Bhandari, MD is a health care provider primarily located in Upland, CA, with other offices in Los Angeles, CA and Los Angeles, CA(and 2 other locations). View Profile

Dr. Mohamed Sadat Ali, MD

Internal Medicine
42 years exp
Accepting New Patients
Rancho Cucamonga, CA4.4 mi
"very trustable dr, and staff, always great, highly recommend, very honest." View Profile

Dr. Jason Haeshik Shin, MD

Gastroenterology
40 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Jason Haeshik Shin, MD is a health care provider primarily located in Upland, CA, with other offices in Garden Grove, CA and Garden Grove, CA(and 12 other locations). View Profile

Dr. Mallu Chenna Reddy, MD

Internal Medicine
37 years exp
Accepting New Patients
Pomona, CA7.3 mi
"Absolutely a great Dr will help you find out what is going on and will do the extra test listens to your symptoms and is respectful at the same time" View Profile

Dr. Rama Reddy Thumati, MD

Cardiovascular Disease
55 years exp
Pomona, CA7.3 mi
"My husband and I have been patients of Dr.Thumati for 40 years and have found him to be an excellent doctor: compassionate and effective in all aspects: diagnosis, supervision, and surgery." View Profile

Dr. Alaa Mohamed Latif, MD

Oncology
42 years exp
Accepting New Patients
Pomona, CA7.0 mi
"The best oncologist hematologist in the LA area He listens to you. Feels with you. And takes up-to-date care of you." View Profile

Dr. Raymundo Sevilla Bautista, MD

Nephrology
38 years exp
Accepting New Patients
Upland, CA3.4 mi
"He is been my husband nephrologist for more than 15years. His staff at the office were very courteus and helpfull all the time." View Profile

Dr. Chandrahas Agarwal, MD

Cardiovascular Disease
44 years exp
Upland, CA3.4 mi
"Honest and very professional doctor." View Profile

Dr. Amarin Kongchalalai, MD

Internal Medicine
41 years exp
Accepting New Patients
Upland, CA3.4 mi
"I Have been seeing Dr. K. for about 4 yrs. He has really helped me, he takes action. right away and does it with a smile. Dr. K. Is an excellent experienced Dr." View Profile

Dr. Camille Adeimy

Oncology
Accepting New Patients
Upland, CA3.4 mi
"Dr. Adeimy is my oncologist after having breast cancer last year. His calm and assuring manner made me feel at ease from the very start." View Profile

Dr. Altaf Lutfe Ali, MD

Interventional Cardiology
47 years exp
Upland, CA3.4 mi
Dr. Altaf Lutfe Ali, MD is a health care provider primarily located in Upland, CA, with another office in Upland, CA. He has 47 years of experience. View Profile

Dr. Rita Kamal Pradhan, MD

Endocrinology, Diabetes & Metabolism
36 years exp
Upland, CA3.4 mi
Dr. Rita Kamal Pradhan, MD is a health care provider primarily located in Upland, CA, with another office in Upland, CA. She has 36 years of experience. View Profile

Dr. Rubina Aqeel, MD

Endocrinology, Diabetes & Metabolism
46 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Rubina Aqeel, MD is a health care provider primarily located in Upland, CA, with other offices in Rancho Cucamonga, CA and San Dimas, CA(and 4 other locations). View Profile

Dr. Zaher Azzawi, MD

Internal Medicine
46 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Zaher Azzawi, MD is a health care provider primarily located in Upland, CA, with other offices in Rancho Cucamonga, CA and Upland, CA. He has 46 years of experience. View Profile

Dr. Haritha Reddy Alla, MD

Cardiovascular Disease
30 years exp
Upland, CA3.4 mi
Dr. Haritha Reddy Alla, MD is a health care provider primarily located in Upland, CA, with another office in Pomona, CA. She has 30 years of experience. View Profile

Dr. Samir Sabah Iskander, MD

Family Medicine
42 years exp
Accepting New Patients
Upland, CA4.3 mi
"caring and knowledgeable." View Profile

Dr. Tejinder Singh, MD

Internal Medicine
48 years exp
Accepting New Patients
Upland, CA3.4 mi
"I have been a patient of Dr. Singh for the 6 years living here. He is knowledgeable and has been kind and helpful when I have needed specialized care." View Profile

Dr. Joel Curry Bartlett, MD

Family Medicine
37 years exp
Accepting New Patients
Chino, CA6.3 mi
"I appreciate the time and concern Dr. Bartlett gives his patients. I've never had a Dr. that showed this kind of interest and concern" View Profile

Dr. Randall Lane Goodman, MD

Ophthalmology
30 years exp
Accepting New Patients
Upland, CA3.3 mi
"Amazing !" View Profile

Dr. Nadir Ali Eltahir, MD

Pulmonology
43 years exp
Upland, CA3.4 mi
"He saved patient’s life by making a right decision. He diagnosed the disease correctly." View Profile

Dr. Vince Patrick Rocero Cacho, MD

Internal Medicine
19 years exp
Accepting New Patients
Chino Hills, CA
Dr. Vince Patrick Rocero Cacho, MD is a health care provider primarily located in Chino Hills, CA. He has 19 years of experience. View Profile

Dr. Robert Chester Jones, MD

Pulmonology
47 years exp
Upland, CA3.4 mi
Dr. Robert Chester Jones, MD is a health care provider primarily located in Upland, CA, with another office in Upland, CA. He has 47 years of experience. View Profile

Dr. Mysore Rangappa Nagaraja, MD

Gastroenterology
56 years exp
Accepting New Patients
Upland, CA3.4 mi
Dr. Mysore Rangappa Nagaraja, MD is a health care provider primarily located in Upland, CA, with other offices in Thousand Oaks, CA and Burbank, CA(and 6 other locations). View Profile

Dr. Krishna G N Reddy, MD

Internal Medicine
55 years exp
Accepting New Patients
Chino, CA3.9 mi
"I love dr reddy., care me,,He is very patient and sweet., Terrific Dr. Who helps me a lot. God bless you Dr reddy," View Profile

Dr. Ashok Varadaraj Sharma, MD

Internal Medicine
39 years exp
Accepting New Patients
Claremont, CA5.9 mi
"Dr. Sharma is one of the best primary care providers I've ever had." View Profile

Dr. Jose Adriano M Magat Santiago, MD

Internal Medicine
40 years exp
Upland, CA3.4 mi
Dr. Jose Adriano M Magat Santiago, MD is a health care provider primarily located in Upland, CA, with other offices in Montclair, CA and Montclair, CA(and 7 other locations). View Profile

Dr. Melanie S Crane, MD

Internal Medicine
25 years exp
Accepting New Patients
Eastvale, CA8.6 mi
"Dr. Crane is a wonderful dedicated physician who takes excellent care of her patients. I would highly recommend" View Profile

Dr. Edward Ezra Abdullah, MD

Cardiovascular Disease
59 years exp
Accepting New Patients
Upland, CA3.4 mi

Dr. Avani Manilal Patel Shah, MD

Internal Medicine
29 years exp
CHINO, CA3.5 mi
"I find Dr. Patel to be patient, caring & attentive. She seems to genuinely want to help with my health." View Profile

Dr. Vinod Chandr Patwardhan, MD

Oncology
59 years exp
Montclair, CA4.3 mi
"Dr. Pat is a hero in medicine." View Profile

Dr. Prasad Anjaneya Jeereddi, MD

Endocrinology, Diabetes & Metabolism
55 years exp
Accepting New Patients
Upland, CA3.4 mi
"Great Doctor! Highly reccommend him to anyone!!" View Profile

Dr. Daniel Peter Gluckstein, MD

Infectious Disease
49 years exp
Upland, CA3.4 mi
Dr. Daniel Peter Gluckstein, MD is a health care provider primarily located in Upland, CA, with other offices in Pomona, CA and Upland, CA(and 2 other locations). View Profile

Dr. Anshul Varshney, MD

Ophthalmology
25 years exp
Chino, CA3.9 mi
"Dr. Varshney is an excellent & professional Ophthalmologist. I've been a patient for over 3 years with great outcomes. His receptionist is so very kind and patient." View Profile

Dr. Paul Cheng-Te Niu, MD

Nephrology
42 years exp
Rancho Cucamonga, CA4.5 mi
Dr. Paul Cheng-Te Niu, MD is a health care provider primarily located in Rancho Cucamonga, CA, with other offices in Rancho Cucamonga, CA and Riverside, CA(and 2 other locations). View Profile

Dr. Kyu Dong Ahn, MD

Internal Medicine
49 years exp
Accepting New Patients
Pomona, CA7.0 mi
Dr. Kyu Dong Ahn, MD is a health care provider primarily located in Pomona, CA, with another office in Pomona, CA. He has 49 years of experience. View Profile

Dr. Nisha Vinod Jayani, MD

Endocrinology, Diabetes & Metabolism
18 years exp
Accepting New Patients
CHINO HILLS, CA6.9 mi
Dr. Nisha Vinod Jayani, MD is a health care provider primarily located in CHINO HILLS, CA, with other offices in Riverside, CA and Riverside, CA(and 3 other locations). View Profile

Dr. Keino Andie Rutherford, MD

Hospital Medicine
27 years exp
Accepting New Patients
Chino, CA3.9 mi
"My Grandfather had a terrible case of covid and Dr, Rutherford was there for him and us. We are so thankful" View Profile

Dr. Ricky Pokboon Tang, MD

Internal Medicine
30 years exp
Accepting New Patients
Eastvale, CA8.6 mi
"Very dedicated, spends time answering your concerns & questions. Very happy" View Profile

Dr. Michael Chai, MD

Internal Medicine
33 years exp
Upland, CA4.2 mi
"My husband and I are so happy we found Dr. Chai. He is thoughtful and caring, and really takes time with us as patients to hear and address our concerns." View Profile

Dr. Nahel Al Bouz, MD

Internal Medicine
25 years exp
Upland, CA3.4 mi
"Actually I'm not his patient, it was my sister. I was really impressed from the time we enter the clinic up to the time we left." 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.