Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. Mark Howard Tannenbaum, MD

Individual provider Ophthalmology Physician · NPI 1285613273

Dr. Mark Howard Tannenbaum, MD is an Ophthalmology in Waterbury, Connecticut. Graduated from Albert Einstein College of Medicine of Yeshiva University in 1987, 39 years ago. Practices with Icahn School of Medicine at Mount Sinai, a 2,791-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Connecticut and New York.

Years since qualifying
39
Trained at
Albert Einstein College of Medicine of Yeshiva University
Licensed in
CT, NY
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

87 Grandview Ave
Waterbury, CT 06708-2514
Phone: (203) 574-2020
Fax: (203) 596-2230
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 749 61st St Fl 6, Brooklyn, NY 11220-5162 — (718) 362-6311
  • 94 Bowery, New York, NY 10013-4888 — (212) 335-0328

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 181665 (NY)
Ophthalmology Physician Taxonomy 207W00000X · Licence 64133 (CT)

Record details

NPI number1285613273
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 10, 2006
Last updated in NPPESFebruary 7, 2024
Certification dateFebruary 7, 2024

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOPHTHALMOLOGY
Medical schoolALBERT EINSTEIN COLLEGE OF MEDICINE OF YESHIVA UNIVERSITY
Graduated 1987 (39 years in practice)
Group practice Icahn School Of Medicine At Mount Sinai — 2791 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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