DR. JOSHUA ALEXANDER FEIN MD
NPI 1770146912
Internal Medicine - Hematology & Oncology in New York, NY

Q: What is Joshua Fein's NPI number?

The NPI number for Joshua Fein is 1770146912. It was assigned to this individual provider in the NPPES registry on April 15, 2019.

Q: What is Joshua Fein's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

Q: When was this NPI record last updated?

The NPPES record for Joshua Fein was last updated on September 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 15, 2019

520 E 70TH ST, NEW YORK, NY 10021(646) 962-7950 Get Directions Write a Review

NPPES record last updated: September 29, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: May 11, 2019, Apr 15, 2019 (2 updates tracked since 2019).

On this page

About Dr. Joshua Alexander Fein Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOSHUA ALEXANDER FEIN MD (NPI 1770146912) is an individual hematology & oncology provider in New York, New York, licensed in New York (318321) and active in the NPI registry since April 2019.

NPPES Registry Identity

NPI1770146912

Entity TypeIndividualMale

Primary Taxonomy207RH0003X

Provider Legal NameDR. JOSHUA ALEXANDER FEINCredential: MD

Location Address520 E 70TH STNew York, NY 10021-9800

Mailing Address520 E 70th St Ste C-f369New York, NY 10021-9800

Phone(646) 962-7950

Sole ProprietorNo

Enumeration DateApril 15, 2019

Last NPPES UpdateSeptember 29, 20252 updates tracked since enumeration

NPPES CertifiedSeptember 29, 2025

✔ NPI 1770146912 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Hematology & OncologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0003X

License✔ Licensed in NY · 318321

Definition

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

520 E 70TH ST, New York, NY 10021

Open in Google Maps ↗

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SHIN-RONG JULIA WU MD

Internal Medicine (Hematology & Oncology)

520 E 70TH ST, STARR 341
NEW YORK, NY 10021

New York County (646) 962-9864

JOY MARLA GELBMAN M.D.

Internal Medicine (Cardiovascular Disease)

520 E 70TH ST, STARR 4
NEW YORK, NY 10021

New York County (212) 746-2150

JESSICA MICHELLE HASKIN RD, CDN

Nutritionist

520 E 70TH ST
NEW YORK, NY 10021

New York County (212) 746-0838

RUBY ROSS MD

Student in an Organized Health Care Education/Training Program

520 E 70TH ST
NEW YORK, NY 10021

New York County (212) 746-2596

MICHAL BAR-NATAN MD

Internal Medicine (Medical Oncology)

520 E 70TH ST
NEW YORK, NY 10021

New York County (646) 962-2700

WEILL MEDICAL COLLEGE OF CORNELL UNIVERSITY

Internal Medicine (Hematology & Oncology)

520 E 70TH ST, STARR 341
NEW YORK, NY 10021

New York County (646) 962-2010

CATHERINE BEACH SILVER PA-C

Physician Assistant

520 E 70TH ST, STARR 341
NEW YORK, NY 10021

New York County (212) 746-7576

JAFREN RAHMAN PA-C

Physician Assistant

520 E 70TH ST
NEW YORK, NY 10021

New York County (646) 962-2072

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joshua Fein's NPI number?

The NPI number for Joshua Fein is 1770146912. It was assigned to this individual provider in the NPPES registry on April 15, 2019.

Where is Joshua Fein located?

Joshua Fein practices at 520 E 70th St, New York, NY 10021. The listed phone number is (646) 962-7950.

What is Joshua Fein's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.

When was this NPI record last updated?

The NPPES record for Joshua Fein was last updated on September 29, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.