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

Mayer Grosser, MD

Individual provider Internal Medicine Physician · NPI 1962450908

Mayer Grosser, MD practises Internal Medicine in New York, New York. Graduated from New York Medical College in 1981, 45 years ago. Practices with Gloversville Emergency Medicine Services PC, a 16-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
45
Trained at
New York Medical College
Licensed in
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

100 E 77th St
New York, NY 10021-1850 Not confirmed with CMS for 17 years — call before visiting
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 153293 (NY)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 153293 (NY)

Record details

NPI number1962450908
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 4, 2006
Last updated in NPPESJuly 8, 2009

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesEMERGENCY MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1981 (45 years in practice)
Group practice Gloversville Emergency Medicine Services Pc — 16 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients211
Services billed 387 a service is one billed item, such as a visit, a test or a procedure
Average patient age70

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 Gloversville Emergency Medicine Services PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 16 clinicians in the practice; 6 are shown here.

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