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John Pasquale Williams, MD

Child & Adolescent Psychiatry Physician in Bryn Mawr, PA · enumerated 2006.

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

National Provider Identifier

1386700813

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Registry record

Entity type Individual (Type 1)
Name John Pasquale Williams
Credential MD
Sex Male
Practice address 901 Glenbrook Ave, Bryn Mawr, PA, 19010
Phone (610) 880-0110
Enumeration date Dec 29, 2006
Last updated in NPPES Apr 19, 2011

Taxonomy & licenses

2084P0804X Child & Adolescent Psychiatry Physician Allopathic & Osteopathic Physicians · License MD429523 (PA) Primary
2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License MD429523 (PA) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 John Williams practice?
The practice location on file with NPPES is in Bryn Mawr, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for John Williams?
The National Provider Identifier (NPI) for John Williams is 1386700813, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-04-19.