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Internists with Great Reviews in Diamond Bar, CA

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641 providers

Availability last updated 07/12/2026

Dr. Richard Lam, MD
Dr. Richard Lam, MD Internist
50.2 mi
41900 Winchester Road
Suite 100
Temecula, CA 92590
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About Dr. Richard Lam, MD

Richard Lam, MD, is a highly respected physician specializing in Internal Medicine and Geriatrics at Richard C Lam MD & Associates. He sees patients from two Temecula and Sun City, California, offices and provides telemedicine services.

Dr. Lam is an esteemed physician in the Diamond Valley, serving the community since 1998, and has established a thriving private practice. Throughout years of service, he has become deeply connected to the local community, building long-lasting relationships with patients and earning their trust through exceptional medical care.

He has a solid educational background and a deep commitment to patient-centered care. He completed his undergraduate studies at the University of California, Irvine, where he pursued a dual major in Biology and Chemistry and a minor in Art History. His passion for the sciences and humanities allowed him to develop a well-rounded perspective in his approach to patient care. 

Dr. Lam attended Temple University in Philadelphia for his Medical degree, graduating magna cum laude. 

He pursued residency training at UCLA-Wadsworth Veteran's Hospital, gaining Internal Medicine and Geriatrics expertise and developing a comprehensive understanding of complex medical conditions and the specific needs of older adults.

Dr. Lam understands collaboration and shared decision-making are crucial to achieving the best outcomes. By building strong patient partnerships, he ensures that unique needs, concerns, and values are considered in treatment plans. 

With an integrative approach to medicine, Dr. Lam combines evidence-based practices with a holistic understanding of patients' well-being. He is particularly interested in managing heart disease, Alzheimer's, arthritis, and diabetic care. 

Dr. Lam stays current with the latest advancements, allowing him to provide his patients with the most effective and innovative treatments. His practice offers same-day visits, demonstrating a commitment to providing timely and accessible care. Dr. Lam understands the importance of addressing urgent medical needs promptly.

His commitment to his patients extends beyond the walls of his practice. He actively engages in community outreach programs, health education initiatives, and local events to promote awareness and preventative care within the Diamond Valley area.

Dr. Lam leads a fulfilling personal life. He is happily married and a proud father of four children. In his free time, he enjoys various hobbies, including fishing, woodwork, drawing and painting, physical fitness, and traveling with his family. These activities bring him joy and contribute to his well-rounded approach to life and preventive care.

Whether addressing acute illnesses, managing chronic conditions, or providing preventive care, Dr. Lam remains committed to serving the healthcare needs with excellence and compassion.

Practice
Richard C Lam MD & Associates
Dr. Richard Lam, MD

Dr. Richard Lam, MD

Internist

41900 Winchester Road
Suite 100
Temecula, CA 92590

Healthcare specialist
Shahriar Jarchi, MD Internist
1.2 mi
384 S Rock River Rd
Diamond Bar, CA 91765

Shahriar Jarchi, MD

Internist

384 S Rock River Rd
Diamond Bar, CA 91765

Healthcare specialist
Shahriar Jarchi, MD Internist
1.5 mi
23612 Meadcliff Pl
Diamond Bar, CA 91765

Shahriar Jarchi, MD

Internist

23612 Meadcliff Pl
Diamond Bar, CA 91765

Healthcare specialist
Shahriar Jarchi, MD Internist
3.1 mi
19850 Colima Rd
Walnut, CA 91789

Shahriar Jarchi, MD

Internist

19850 Colima Rd
Walnut, CA 91789

Healthcare specialist
Selma Prechel, OD Internist
6.6 mi
3050 Saturn Street Suite #201
Brea, CA 92821

Selma Prechel, OD

Internist

3050 Saturn Street Suite #201
Brea, CA 92821

Healthcare specialist
Selma Prechel, OD Internist
6.7 mi
750 Terrado Plaza #228
Covina, CA 91723

Selma Prechel, OD

Internist

750 Terrado Plaza #228
Covina, CA 91723

Healthcare specialist
Selma Prechel, OD Internist
7.3 mi
13141 Central Ave Ste D
Chino, CA 91710

Selma Prechel, OD

Internist

13141 Central Ave Ste D
Chino, CA 91710

Healthcare specialist
Ajit Chary, MD Internist
7.7 mi
18200 Yorba Linda Blvd
Yorba Linda, CA 92886

Ajit Chary, MD

Internist

18200 Yorba Linda Blvd
Yorba Linda, CA 92886

Healthcare specialist
David Sapien, MD Internist
7.7 mi
5475 Walnut Ave Second Floor
Chino, CA 91710

David Sapien, MD

Internist

5475 Walnut Ave Second Floor
Chino, CA 91710

Healthcare specialist
Selma Prechel, OD Internist
7.7 mi
1075 Yorba Pl Ste 102
Placentia, CA 92870

Selma Prechel, OD

Internist

1075 Yorba Pl Ste 102
Placentia, CA 92870

Healthcare specialist
Shahriar Jarchi, MD Internist
7.8 mi
2555 6th Ave
La Verne, CA 91750

Shahriar Jarchi, MD

Internist

2555 6th Ave
La Verne, CA 91750

Healthcare specialist
Shahriar Jarchi, MD Internist
7.9 mi
710 E Payson St
La Verne, CA 91750

Shahriar Jarchi, MD

Internist

710 E Payson St
La Verne, CA 91750

Healthcare specialist
Selma Prechel, OD Internist
7.9 mi
163 W Arrow Hwy
Glendora, CA 91740

Selma Prechel, OD

Internist

163 W Arrow Hwy
Glendora, CA 91740

Healthcare specialist
Shahriar Jarchi, MD Internist
8.0 mi
1100 E Whittier Blvd
La Habra, CA 90631

Shahriar Jarchi, MD

Internist

1100 E Whittier Blvd
La Habra, CA 90631

Healthcare specialist
Selma Prechel, OD Internist
8.1 mi
770 S Brea Blvd Suite #217
Brea, CA 92821

Selma Prechel, OD

Internist

770 S Brea Blvd Suite #217
Brea, CA 92821

Healthcare specialist
Shahriar Jarchi, MD Internist
8.3 mi
435 E Gladstone St.,
Glendora, CA 91740

Shahriar Jarchi, MD

Internist

435 E Gladstone St.,
Glendora, CA 91740

Healthcare specialist
Shahriar Jarchi, MD Internist
8.3 mi
501 S College Ave
Claremont, CA 91711

Shahriar Jarchi, MD

Internist

501 S College Ave
Claremont, CA 91711

Healthcare specialist
Antonio Zamorano, DO Family Physician
8.4 mi
15115 Amar Rd
La Puente, CA 91744

Antonio Zamorano, DO

Family Physician

15115 Amar Rd
La Puente, CA 91744