Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Matthew David Williams, PA-C

Physician Assistant in Summit, NJ · enumerated 2017.

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

National Provider Identifier

1144749359

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Registry record

Entity type Individual (Type 1)

Name Mr. Matthew David Williams

Credential PA-C

Sex Male

Practice address 99 Beauvoir Avenue, Carol G. Simon Cancer Center, Summit, NJ, 07901

Phone (908) 608-0078

Enumeration date Sep 19, 2017

Last updated in NPPES Jan 30, 2020

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 021184-1 (NY) Secondary

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 25MP00493000 (NJ) Primary

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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is Matthew Williams?

Matthew Williams is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

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Summit Anesthesia Associates PA Anesthesiology Physician · Summit, NJ NPI 1033198304 James Chen Endocrinology, Diabetes & Metabolism Physician · Summit, NJ NPI 1427092626 Richard Hodosh Neurological Surgery Physician · Summit, NJ NPI 1861580755 Michael Kreitzer Obstetrics & Gynecology Physician · Summit, NJ NPI 1235216565 Emmanuel Apor Hematology & Oncology Physician · Summit, NJ NPI 1295028405 Francisca Ryan Nurse Practitioner · Summit, NJ NPI 1568730356 Next Step Orthopaedics, Inc. Prosthetic/Orthotic Supplier · Summit, NJ NPI 1619228517 Nosagie Ohonba Student in an Organized Health Care Education/Training Program · Summit, NJ NPI 1851035950

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-01-30.