Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Alexis Anna Williams, M.D.

Orthopaedic Surgery Physician in Bryn Mawr, PA · enumerated 2016.

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

National Provider Identifier

1780047720

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ms. Alexis Anna Williams

Credential M.D.

Sex Female

Practice address 830 Old Lancaster Rd Ste 209, Bryn Mawr, PA, 19010

Phone (610) 642-3005

Fax (484) 337-3559

Enumeration date Mar 29, 2016

Last updated in NPPES Oct 24, 2023

Taxonomy & licenses

390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License MD482459 (PA) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Alexis Williams?

The National Provider Identifier (NPI) for Alexis Williams is 1780047720, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexis 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.

Other providers at this practice address

Browse all →

Abby Yochim Physician Assistant · Bryn Mawr, PA NPI 1023368552

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-10-24.