Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Downtown Nuclear Cardiology, P.C.

Nuclear Cardiology Physician in New York, NY · enumerated 2006 · authorized official Wesley Tzall, President.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1003830589

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Registry record

Entity type Organization (Type 2)

Legal business name Downtown Nuclear Cardiology, P.C.

Practice address 170 William St, Suite 814, New York, NY, 10038

Phone (212) 312-5000

Fax (212) 312-5266

Enumeration date Jul 27, 2006

Last updated in NPPES Feb 3, 2009

Taxonomy & classification

207UN0901X Nuclear Cardiology Physician Allopathic & Osteopathic Physicians · License 131462 (NY) Primary

Authorized official

Name Wesley Tzall

Title President

Phone (212) 312-5000

Other identifiers

Identifier	Type	State	Issuer
01612486	Medicaid	NY	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Downtown Nuclear Cardiology, P.C.?

Downtown Nuclear Cardiology, P.C. is registered in NPPES as a Nuclear Cardiology Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-02-03.