NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. William Joel Schwartz, M.D.

Ophthalmology Physician in Pomona, NY · enumerated 2006 · practices at Pomona Pediatrics PC.

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

National Provider Identifier

1578524393

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Registry record

Entity type Individual (Type 1)
Name Dr. William Joel Schwartz
Credential M.D.
Sex Male
Practice address Pomona, NY, 10970
Phone (845) 354-6224
Fax (845) 354-6335
Enumeration date Mar 31, 2006
Last updated in NPPES May 19, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 106636 (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
RS249 Other NY OXFORD
1000063364 Other NY AFFINITY
0D0329 Other NY HEALTHNET
070119000064 Other NY FIDELIS
8290325 Other NY CIGNA PPO
957211 Other NY BLUE CROSS BLUE SHIELD
000158212001 Other NY UNITED HEALTHCARE

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.

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Frequently asked questions

Where does William Schwartz practice?
The practice location on file with NPPES is in Pomona, NY. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for William Schwartz?
The National Provider Identifier (NPI) for William Schwartz is 1578524393, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-19.