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

Dr. James Robert Pellegrini Jr., MD

Individual provider Gastroenterology Physician · NPI 1619437845

Dr. James Robert Pellegrini Jr., MD practises Internal Medicine in Brooklyn, New York. Qualified in 2017, 9 years ago. Practices with Nassau Health Care Corporation, a 181-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
9
Licensed in
NY
In the registry since
2019
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

506 6th St
Brooklyn, NY 11215-3609
Phone: (718) 780-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2201 Hempstead Tpke, East Meadow, NY 11554-1859 — (516) 572-0123

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 319413 (NY)

Record details

NPI number1619437845
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 22, 2019
Last updated in NPPESJuly 8, 2026
Certification dateJuly 8, 2026

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 Nassau Health Care Corporation — 181 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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 patients332
Services billed 474 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 Nassau Health Care Corporation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 181 clinicians in the practice; 12 are shown here.

Other providers in Brooklyn