Mark L Geller, M.D.
Endocrinology, Diabetes & Metabolism
Patients across CA can see Mark Geller, M.D. in person in Tarzana or via virtual visit — no travel required. Trained at University of California, San Diego School of Medicine (class of 1985), he has been practicing for over 41 years. Endocrinologists treat hormonal and metabolic disorders including diabetes (type 1 and 2), thyroid disease, osteoporosis, and more.
Data updated 2018-10-23 on CMS NPPES
Contact & Location
Practice Location
18133 Ventura Blvd Suite 204, Tarzana, CA 91356-3641
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Endocrinologists treat hormonal and metabolic disorders including diabetes (type 1 and 2), thyroid disease, osteoporosis, adrenal disorders, pituitary conditions, and polycystic ovary syndrome (PCOS).
Taxonomy: 207RE0101X
Education & Training
University of California, San Diego School of Medicine (Class of 1985)
Virtual Endocrinology, Diabetes & Metabolism Care With Mark Geller
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Mark Geller for follow-ups, medication reviews, and ongoing care — no travel to Tarzana required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about Mark Geller
NPI records show Dr. Geller as active with telehealth listed in Tarzana, CA. Note: NPI status alone doesn't confirm open availability — always call ahead. Phone: (818) 466-7700.
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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.
Contact Mark Geller
Practice Location
18133 Ventura Blvd Suite 204, Tarzana, CA 91356-3641
Mailing Address
Po Box 9602, Mission Hills, CA 91346-9602
This is a provider directory. Contact the office directly to schedule appointments.
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