Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

William C Motter, MD

Anesthesiology Physician in Mechanicsburg, PA · enumerated 2005 · practices at Cl Cressler Inc.

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

National Provider Identifier

1376533745

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Registry record

Entity type Individual (Type 1)

Name William C Motter

Credential MD

Sex Male

Practice address 4999 Louise Dr, Ste 105, Mechanicsburg, PA, 17055

Phone (717) 766-1127

Fax (717) 766-5518

Enumeration date Oct 26, 2005

Last updated in NPPES Feb 19, 2025

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License MD064927L (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

Is NPI 1376533745 active?

Yes, as of the latest NPPES snapshot, NPI 1376533745 is active (record last updated 2025-02-19).

How do I verify William Motter's NPI record?

Cross-check NPI 1376533745 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-19.