Dr. Mark Lawrence Geller, MD

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Endocrinology, Diabetes & Metabolism

Tarzana, CA 91356

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Dr. Mark Lawrence Geller, MD is a health care provider primarily located in Tarzana, CA. His specialties include Endocrinology, Diabetes & Metabolism, Endocrinology & Metabolism, Internal Medicine. He speaks English. He accepts Aetna HMO, Aetna PPO, and Anthem Blue Cross HMO, and other major insurance plans. Dr. Mark Lawrence Geller has 2 areas of expertise, Endocrinology & Metabolism and Internal Medicine.

4.8

436 Ratings
20 insurance plans accepted
speaks English
424 written reviews
3 specialties
2 areas of expertise
2 board certifications
1 office location
Male

Gave an accurate diagnosis
Had a good bedside manner
Spent time with me

Based on patient feedback. Read the reviews

Dr. Geller's Ratings and Reviews

4.8

436 Ratings with 424 written Reviews

Average Wait Time 13 Minutes

How was your appointment with
Dr. Geller?

Patients’ Perspective

Gave an accurate diagnosis: (13) Did WellNeeds Improvement (2)
Had a good bedside manner: (14) Did WellNeeds Improvement (1)
Spent time with me: (14) Did WellNeeds Improvement (2)
Provided follow-up after the visit: (5) Did WellNeeds Improvement (7)
Flexible scheduling: (11) Did WellNeeds Improvement (4)
Saw me in a timely manner: No Ratings
Staff was courteous: No Ratings

Patients praise Dr. Mark Lawrence Geller for his attentive and caring demeanor, highlighting his ability to listen, communicate effectively, and address complex medical needs with professionalism and compassion. His thorough approach, genuine concern for patient welfare, and effective communication skills have earned him trust and appreciation from many longstanding patients. While most reviews are overwhelmingly positive, a few critiques mention the desire for more alternative treatment options and occasional delays in scheduling appointments. Overall, Dr. Geller is regarded as a knowledgeable and compassionate physician who provides excellent care to his patients.

AI-generated from the text of patient reviews

436 ratings & reviews

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Showing 1 to 10 of 424 reviews

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Dr. Geller is kind and a good listener. He makes me feel that we can take the time needed for the appointment. For my part, I always come prepared with a list of questions so that I can be efficient with his time.

March 3rd, 2026 | Source: Partner

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Dr. Geller is a good communicator. I trust that he is attentive to my concerns and also to my complex medical needs.

March 1st, 2026 | Source: Partner

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I was very happy

March 1st, 2026 | Source: Partner

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Always patient, listens well, approaches options for care with ease.

February 25th, 2026 | Source: Partner

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My experience with my provider was a good one. He listened to the concerns I have regarding my health and he advised on what to do which I really appreciated.

February 21st, 2026 | Source: Partner

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I only have good experiences! Dr Geller and the staff are very much appreciated! If I have a question I never hesitate to call because I know there will be a response!

February 19th, 2026 | Source: Partner

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This was my first experience with my primary care doctor, who is new to me since I recently changed my insurance coverage. I have seen other doctors in the women's health department previously. As someone whose work experience was in the medical field as a nurse, I was Very happy with the care I received. It was very efficient and thorough. I received my referrals within a few hours of my appointment with Dr. Geller. I will be going in for lab work within a few days, and then proceeding with scheduling appointments with the referred doctors. So far, so good. I am impressed, and hopefully will continue to be happy with the care and service I have received so far.

February 19th, 2026 | Source: Partner

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This is the first time that I felt truly listened to by a provider. Dr. Geller was wonderful!!

February 17th, 2026 | Source: Partner

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Dr. Mark Geller is very professional attentive and caring. I appreciate very much his work and services.

February 17th, 2026 | Source: Partner

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Excellent visit with Doctor Geller.

February 17th, 2026 | Source: Partner

Facey Medical Group - Tarzana

18133 Ventura Blvd Ste 204Tarzana, CA 91356

Tel: (818) 466-7700


Dr. Mark Lawrence Geller, MD	Dr. Mark Thomas Ackerman, MD	Dr. Tigran Tiraturyan, MD	Dr. Kevin Andrew Bechler, MD
Endocrinology, Diabetes & Metabolism	Internal Medicine	Internal Medicine	Internal Medicine
	Accepts New Patients	Accepts New Patients	Accepts New Patients
4.8 (436 Ratings)	3.1 (14 Ratings)	0 (0 Ratings)	0 (0 Ratings)
	32 Years of Experience	10 Years of Experience	14 Years of Experience
Virtual Visit Available	No Virtual Visit Option	No Virtual Visit Option	No Virtual Visit Option
Speaks English
Tarzana , CA	Los Angeles , CA	Glendale , CA	Los Angeles , CA
	Med School: Renaissance School Of Medicine At Stony Brook University	Med School: St Georges University School Of Medicine	Med School: Keck School Of Medicine Of The University Of Southern California
Current Profile	View Profile	View Profile	View Profile

Search for your insurance and plan

Accepts Medicare
Aetna HMO
Aetna PPO
Anthem Blue Cross HMO
Anthem Blue Cross Medicare Advantage
Anthem Blue Cross PPO
Blue Shield of CA HMO
Blue Shield of CA HMO - Trio
Blue Shield of CA Medicare Advantage
Cigna HMO
Cigna PPO
Coventry/First Health PPO
Health Net - Medicare Advantage
Health Net Cal MediConnect HMO
Health Net PPO
HealthSmart (Interplan) PPO
Humana Medicare Advantage
Multiplan PPO
SCAN Medicare Advantage
US Family Health Plan - TriCare
Vivity by Anthem Blue Cross

Endocrinology & Metabolism
Internal Medicine

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Internal Medicine
| Pasadena, CA
(0)
Dr. Warren Lance Roston, MD
Internal Medicine
| Beverly Hills, CA
(5)
Dr. Brandy Lizette Williams, MD
Internal Medicine
25 Years Exp | Woodland Hills, CA
(18)
Dr. Parmis Pouya, MD
Geriatric Medicine
31 Years Exp | Los Angeles, CA
(1)
Dr. Natalie Lorraine Sanders, MD
Internal Medicine
47 Years Exp | Harbor City, CA
(0)
Dr. Elham Ghadishah, MD
Internal Medicine
32 Years Exp | San Pedro, CA
(4)
Dr. Alexander N Gaitanis, DO
Internal Medicine
23 Years Exp | Bakersfield, CA
(14)
Dr. Lara Tamar Kose, MD
Internal Medicine
9 Years Exp | Encino, CA
(0)
Dr. Akimi Donna Okino Ching, MD
Internal Medicine
57 Years Exp | Los Angeles, CA
(0)
Dr. Marshall Harold Sachs, MD
Internal Medicine
64 Years Exp | West Hollywood, CA
(2)

Where is Dr. Mark Geller's office located?: Dr. Mark Geller's office is located at 18133 Ventura Blvd Ste 204, Tarzana, CA, 91356.
Does Dr. Mark Geller accept virtual/telehealth appointments?: Yes, Dr. Mark Geller accepts virtual/telehealth appointments. Click the virtual visit button on their Vitals profile.
What languages does Dr. Mark Geller speak?: Dr. Mark Geller speaks English.
How can I make an appointment with Dr. Mark Geller?: You can find contact information for Dr. Mark Geller here on Vitals.
Does Dr. Mark Geller accept my insurance?: You can see the insurance plans that Dr. Mark Geller accepts on their Vitals profile.

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