What is Joshua Fein's NPI number?

Joshua Fein's National Provider Identifier (NPI) is 1770146912, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Joshua Fein's specialty?

Joshua Fein is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).

Where is Joshua Fein located?

Joshua Fein's practice location on file with NPPES is 520 E 70th St, New York, NY 10021-9800.

What is Joshua Fein's phone number?

The practice phone number listed in the NPPES registry for Joshua Fein is (646) 962-7950.

Is Joshua Fein's NPI active?

Yes — Joshua Fein's NPI (1770146912) is active in the NPPES registry as of the last update on 2025-09-29.

IndividualActive

Joshua Fein, MD

NPI 1770146912 · Hematology & Oncology Physician · New York, NY

Joshua Fein, MD is a Hematology & Oncology Physician provider in New York, NY (NPI 1770146912).

Provider details

NPI number: 1770146912
Entity type: Individual
Primary specialty: Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: 318321 (NY)

Specialties & taxonomies

Hematology & Oncology PhysicianPrimary207RH0003XLicense 318321 (NY)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(66/100 index)

A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.

Registry tenure38% of score
7 yrs in NPPES registry
Profile completeness38% of score
100% of core fields populated
Practice footprint23% of score
1 documented practice location

Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.

Practice location

520 E 70th St

New York, NY 10021-9800

Phone: (646) 962-7950

Street-level locationGet directions

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Mailing address

520 E 70th St Ste C-F369