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Mark Lawrence Geller

Internal Medicine Physician - Endocrinology, Diabetes & Metabolism

Highlights

  • Board Certified

Biography

Mark Lawrence Geller is a Internal Medicine Physician - Endocrinology, Diabetes & Metabolism practicing in Tarzana, CA

He has not yet shared a personalized biography with Doctor.com.

Featured Review See More Reviews

Great provider and great experience.…

Anonymous

Summary

Provider Training

UniversityDegreeFocusGraduated
University of Ca, San Diego, School of Medicine LA Jolla CaOther Degree1985
University of CaliforniaMedical Degree1985

InstitutionFocusYear
Residency - Santa Clara Valley Medical Center Program Not Specified
Residency - Stanford University Hospital, Endocrinology, Diabetes & Metabolism; Santa Clara Valley Medical Center, Internal MedicineNot Specified

CertificationCert. BodyYear
Internal medicine
Sub-Specialty: Endocrinology, Diabetes and Metabolism		Internal MedicineNot Specified

Specialties

Languages Spoken
English
Medical Specialties
  • Internal Medicine Physician - Sub-Specialty: Endocrinology, Diabetes & Metabolism

Internal Medicine

Years In Practice: 34 (started in 1992)

Accepts New Patients: Yes

Payment Options

Payment Details

Reviews

Average Rating: 5
Number of Reviews: 441
Most Recent Review: 06/16/2026
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Office & Staff Evaluation Not rated

Ease of Getting an Appointment Not rated
Courtesy of Practice Staff Not rated
Office Appearance & Atmosphere Not rated
Handling of Billing Matters Not rated
Average Wait Time Not Rated

Provider Evaluation

Clear Explanations
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Verified Patient

“Great provider and great experie...”

Great provider and great experience.

Anonymous 06/16/2026
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Verified Patient

“My experience with my provider w...”

My experience with my provider was very good.

Anonymous 06/06/2026
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Verified Patient

“It's all good. Dr. Geller is an ...”

It's all good. Dr. Geller is an excellent practitioner.

Anonymous 06/03/2026
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Verified Patient

“Every contact with Dr Geller is ...”

Every contact with Dr Geller is always easy and comfortable

Anonymous 05/17/2026
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Verified Patient

“Dr. Geller is very knowledgeable...”

Dr. Geller is very knowledgeable, helpful, respectful and kind.

Anonymous 05/10/2026
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Verified Patient

“My Provider Care was Excellent. ...”

My Provider Care was Excellent. Best I have had in years with a healthcare provider. Staff was very professional and the provider was veryAttentive and concerned about my needs and took a great amount of time with me.

Anonymous 06/06/2026
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Verified Patient

“De Geller is excellent in what h...”

De Geller is excellent in what he does! He is efficient, knowledgeable, has empathy, listens carefully and addresses all questions respectfully and has very good and friendly demeanor that puts a patient at ease.

Anonymous 06/05/2026
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Verified Patient

“Very pleasant, apologized for wa...”

Very pleasant, apologized for wait as took longer with prior patient. Very concern about my injury and how I felt.

Anonymous 06/01/2026
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Verified Patient

“Dr. Geller is wonderful..very he...”

Dr. Geller is wonderful..very helpful..listens to what I say..

Anonymous 05/16/2026
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Verified Patient

“Dr Geller is informative, helpfu...”

Dr Geller is informative, helpful and knowledgeable

Anonymous 05/05/2026
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Procedures & Services

Procedures & Treatments Offered

    Commonly Prescribed Medications

    Mark Lawrence Geller has not yet listed the medications that he commonly prescribes.

    Accepted Insurance

    Accepted Insurance

    Mark Lawrence Geller has not yet specified the insurance plans he accepts.
     

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