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

Dr. Zaid M Hamarsha, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1891229365

Dr. Zaid M Hamarsha, MD practises Internal Medicine in Staten Island, New York. Qualified in 2017, 9 years ago. Practices with Mass General Brigham Medical Group Northern Massachusetts Inc, a 819-clinician group and accepts Medicare assignment.

Years since qualifying
9
In the registry since
2017
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

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

Staten Island, NY

No coordinates on file. Search this address in Google Maps

Specialties & licences

Student in an Organized Health Care Education/Training Program (primary) Taxonomy 390200000X

Record details

NPI number1891229365
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 12, 2017
Last updated in NPPESApril 12, 2017

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Mass General Brigham Medical Group Northern Massachusetts Inc — 819 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 patients248
Services billed 562 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Mass General Brigham Medical Group Northern Massachusetts Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 819 clinicians in the practice; 12 are shown here.

Other providers in Staten Island