NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Stewart Horn, MD,FACOG

Specialist in Cedarhurst, NY · enumerated 2005.

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

National Provider Identifier

1952305690

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Stewart Horn
Credential MD,FACOG
Sex Male
Practice address 660 Central Ave, Cedarhurst, NY, 11516
Fax (516) 295-9245
Enumeration date Jun 10, 2005
Last updated in NPPES Sep 7, 2023

Taxonomy & licenses

174400000X Specialist Other Service Providers · License 117520 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
0736582-012 Other NY CIGNA
13853 Other NY ATLANTIS
AP237 Other NY OXFORD
07-00050 Other NY UNITED HEALTHCARE
360 Other NY HEALTHNET
971371 Other NY BC/BS
8305 Other NY GREAT WEST
12581 Other NY HIP
18765 Other NY VYTRA
4217267 Other NY AETNA
OC6526 Other NM PHYSICIANS HEALTH
0097258 Other NY GHI
550132 Other NY HEALTHCARE PARTNERS
AD49028 Other NY MDNY
NS0000198 Other NY SELECT
P00101955 Other NY MEDICARE RAILROAD

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 the NPI number for Stewart Horn?
The National Provider Identifier (NPI) for Stewart Horn is 1952305690, a Type 1 (individual) record in the CMS NPPES registry.
Where does Stewart Horn practice?
The practice location on file with NPPES is in Cedarhurst, NY. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-09-07.