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

Mark Alan Grand, MD

Individual provider Internal Medicine Physician · NPI 1487696514

Mark Alan Grand, MD is an Internal Medicine in Brooklyn, New York. Graduated from New York Medical College in 1978, 48 years ago. Practices with North Shore Hematology Oncology Associates PC, a 473-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in New York.

Years since qualifying
48
Trained at
New York Medical College
Licensed in
NY
In the registry since
2006
Specialties on file
3
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

447 Atlantic Ave
Brooklyn, NY 11217-1702
Phone: (718) 858-6300
Fax: (718) 858-0145
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 101 Pennsylvania Avenue, Brooklyn, NY 11207-2428 — (718) 240-2000

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence 153933 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 1539331 (NY)
Hematology (Internal Medicine) Physician Taxonomy 207RH0000X · Licence 153933 (NY)

Record details

NPI number1487696514
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 12, 2006
Last updated in NPPESSeptember 12, 2019

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Also practisesHEMATOLOGY/ONCOLOGY
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1978 (48 years in practice)
Group practice North Shore Hematology Oncology Associates Pc — 473 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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