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Internists with Great Reviews in Diamond Bar, CA

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Verified Internists in Diamond Bar, CA

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329 providers

Availability last updated 09/10/2026

Healthcare specialist
Ali Mahdi Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Ali Mahdi

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Mehdi Manzari Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Mehdi Manzari

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Hamza Gohar Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Hamza Gohar

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Iris Partovi Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Iris Partovi

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Mehdi Kazemi Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Mehdi Kazemi

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Komail Mujtaba Ali Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Komail Mujtaba Ali

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Afshin Zandpour Adult Medicine Physician
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Afshin Zandpour

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Andrew Hwang Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Andrew Hwang

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Ali Varasteh Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Ali Varasteh

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Manvir Wadhwa, MD Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Manvir Wadhwa, MD

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Mohammad Pour, MD Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Mohammad Pour, MD

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Ray Sunjed Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Ray Sunjed

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Christine Mikhail Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Christine Mikhail

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Rajesh Gulati Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Rajesh Gulati

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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Healthcare specialist
Alina Popa, MD Internist
 25.4 mi
4354 Latham St. Ste# 100
Riverside, CA 92501
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Alina Popa, MD

Internist

4354 Latham St. Ste# 100
Riverside, CA 92501

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James Wortham, MD
4.9
(95)
James Wortham, MD Internist
 25.7 mi
4.9 (95)
4701 Gould Ave
La Canada Flintridge, CA 91011 +1 more location
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About James Wortham, MD
Dr. Keller Wortham is a General Practitioner who has been practicing Family Medicine in the Los Angeles area for fifteen years Dr. Keller Wortham received his Medical Degree from Georgetown University, and completed his internship in Internal Medicine at the University of Pittsburgh. Dr. Wortham believes the first step to a healthy lifestyle is understanding the human body. He therefore always makes sure to devote time educating patients on their individual health and treatment options so they can make informed decisions about their medical care.
Practice
Optimum Medical Group North
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Latest Review
“Friendly office staff very helpful”
James Wortham, MD

James Wortham, MD

Internist

4701 Gould Ave
La Canada Flintridge, CA 91011

4.9 (95)
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Nare Stepanyan, MD
4.78
(50)
Nare Stepanyan, MD Internist
 25.7 mi
4.78 (50)
4701 Gould Ave
La Canada Flintridge, CA 91011 +1 more location
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About Nare Stepanyan, MD
Growing up in Germany, Dr. Stepanyan was exposed to a diverse population at the heart of Europe. Throughout her studies, Dr. Stepanyan had the opportunity to closely study the public health systems of various countries, notably the United States. Dr. Stepanyan completed extensive residency training in family medicine at Loma Linda University and Adventist Health, working very closely with an underserved population with very complex health needs. Her experience and depth of knowledge quickly certified her with the American Board of Family Medicine. Outside of her community, Dr. Stepanyan has a strong passion about global health and medical mission work. She is fluent in German, English, Russian, and Armenian.
Practice
Optimum Medical Group North
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Latest Review
“As always, the staff and Dr. Stepanyan were efficient, friendly and wonderful!”
Nare Stepanyan, MD

Nare Stepanyan, MD

Internist

4701 Gould Ave
La Canada Flintridge, CA 91011

4.78 (50)
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Healthcare specialist
Kate Donkor, FNP Family Nurse Practitioner
 25.9 mi
3133 Mission Inn Ave Suite B
Riverside, CA 92507
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Kate Donkor, FNP

Nurse Practitioner

3133 Mission Inn Ave Suite B
Riverside, CA 92507

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