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

Dr. Diana Marie Nilsen, MD

Individual provider Internal Medicine Physician · NPI 1437194560

Dr. Diana Marie Nilsen, MD is an Internal Medicine in Brooklyn, New York. Qualified in 1989, 37 years ago. Practices with City of New York Office of Payroll Administration, a 14-clinician group. Licensed in New York.

Years since qualifying
37
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

295 Flatbush Avenue Ext Fl 4
Brooklyn, NY 11201-3001
Phone: (718) 249-1468
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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 1836651 (NY)

Record details

NPI number1437194560
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 20, 2006
Last updated in NPPESMarch 11, 2024
Certification dateMarch 11, 2024

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Group practice City Of New York Office Of Payroll Administration — 14 clinicians
Accepts Medicare assignment Not indicated

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