What is Leon Seifert's NPI number?

Leon Seifert's National Provider Identifier (NPI) is 1508678871, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.

What is Leon Seifert's specialty?

Leon Seifert is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).

Where is Leon Seifert located?

Leon Seifert's practice location on file with NPPES is 1230 York Ave # 64, New York, NY 10065-6399.

What is Leon Seifert's phone number?

The practice phone number listed in the NPPES registry for Leon Seifert is (212) 327-7009.

Is Leon Seifert's NPI active?

Yes — Leon Seifert's NPI (1508678871) is active in the NPPES registry as of the last update on 2025-01-23.

IndividualActive

Leon Seifert, MD

NPI 1508678871 · Hospitalist Physician · New York, NY

Leon Seifert, MD is a Hospitalist Physician provider in New York, NY (NPI 1508678871).

Provider details

NPI number: 1508678871
Entity type: Individual
Primary specialty: Hospitalist PhysicianAllopathic & Osteopathic Physicians
Credential: MD
Sex: Male
Sole proprietor: No
License: P120024 (NY)

Specialties & taxonomies

Hospitalist PhysicianPrimary208M00000XLicense P120024 (NY)
Allopathic & Osteopathic Physicians

Profile Score

Established profile(55/100 index)

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

Registry tenure38% of score
1 yr 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

1230 York Ave # 64

New York, NY 10065-6399

Phone: (212) 327-7009

Street-level locationGet directions

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Mailing address