NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Thomas O. Muldoon, M.D, P.C.

Ophthalmology Physician in New York, NY · enumerated 2011 · authorized official Thomas Muldoon, President.

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

National Provider Identifier

1780981910

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Thomas O. Muldoon, M.D, P.C.
Practice address 310 East 14 Street, Suite 402, New York, NY, 10003
Phone (212) 979-4595
Fax (212) 979-4591
Enumeration date Feb 24, 2011
Last updated in NPPES Feb 24, 2011

Taxonomy & classification

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 91604 (NY) Primary

Authorized official

Name Thomas Muldoon
Title President
Phone (212) 979-4595

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 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.
What type of organization is Thomas O. Muldoon, M.D, P.C.?
Thomas O. Muldoon, M.D, P.C. is registered in NPPES as a Ophthalmology Physician (its primary provider taxonomy).

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-02-24.