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

Individual provider Internal Medicine Physician · NPI 1215995055

Adam Fiterstein, MD practises Emergency Medicine in New York, New York. Qualified in 1996, 30 years ago. Practices with Optum Urgent Care PLLC, a 69-clinician group. Licensed in New York.

Years since qualifying
30
Licensed in
NY
In the registry since
2006
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

100 E 77th St
New York, NY 10021-1850
Phone: (212) 434-2650
Fax: (212) 434-4512
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 216649 (NY)

Record details

NPI number1215995055
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 2, 2006
Last updated in NPPESJuly 13, 2026

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1996 (30 years in practice)
Group practice Optum Urgent Care Pllc — 69 clinicians
Accepts Medicare assignment Not indicated

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients301
Services billed 574 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Optum Urgent Care PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 69 clinicians in the practice; 12 are shown here.

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