1. Home
  2. Directory
  3. Pennsylvania
  4. Lancaster
  5. Orthopaedic Surgery
  6. NPI Profile

WILLIAM FULLER BAKER D.O.
NPI 1134743297
Orthopaedic Surgery in Lancaster, PA

Active since June 04, 2020
538 N QUEEN ST, LANCASTER, PA 17603(717) 393-1900 Get Directions Write a Review

NPPES record last updated: June 4, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jun 4, 2026, Jun 4, 2020 (2 updates tracked since 2020).

About William Fuller Baker D.o. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM FULLER BAKER D.O. (NPI 1134743297) is an individual orthopaedic surgery provider in Lancaster, Pennsylvania, licensed in Pennsylvania (OS025806) and active in the NPI registry since June 2020.

NPPES Registry Identity

NPI1134743297
Entity TypeIndividualMale
Primary Taxonomy207X00000X
Provider Legal NameWILLIAM FULLER BAKERCredential: D.O.
Location Address538 N QUEEN STLancaster, PA 17603-3046
Mailing Address538 N Queen StLancaster, PA 17603-3046 · (856) 566-6853
Phone(717) 393-1900
Sole ProprietorNo
Enumeration DateJune 4, 2020
Last NPPES UpdateJune 4, 20262 updates tracked since enumeration
NPPES CertifiedJune 4, 2026
✔ NPI 1134743297 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyOrthopaedic SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code207X00000X
License✔ Licensed in PA · OS025806
Definition

An orthopaedic surgeon is trained in the preservation, investigation and restoration of the form and function of the extremities, spine and associated structures by medical, surgical and physical means. An orthopaedic surgeon is involved with the care of patients whose musculoskeletal problems include congenital deformities, trauma, infections, tumors, metabolic disturbances of the musculoskeletal system, deformities, injuries and degenerative diseases of the spine, hands, feet, knee, hip, shoulder and elbow in children and adults. An orthopaedic surgeon is also concerned with primary and secondary muscular problems and the effects of central or peripheral nervous system lesions of the musculoskeletal system.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X
538 N QUEEN ST, Lancaster, PA 17603
Open in Google Maps ↗

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Baker's NPI number?

The NPI number for William Baker is 1134743297. It was assigned to this individual provider in the NPPES registry on June 4, 2020.

Where is William Baker located?

William Baker practices at 538 N Queen St, Lancaster, PA 17603. The listed phone number is (717) 393-1900.

What is William Baker's specialty?

The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.

When was this NPI record last updated?

The NPPES record for William Baker was last updated on June 4, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.