Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. William S.T. Mayhall, MD

Orthopaedic Surgery Physician in Salem, OR · enumerated 2006 · practices at Church at the Park.

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

National Provider Identifier

1770529547

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Registry record

Entity type Individual (Type 1)

Name Dr. William S.T. Mayhall

Credential MD

Sex Male

Practice address 1280 Center St Ne, Salem, OR, 97301

Phone (503) 581-4402

Fax (503) 581-8817

Enumeration date Jun 21, 2006

Last updated in NPPES Jul 9, 2007

Taxonomy & licenses

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians · License 9214 (OR) 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 1770529547 active?

Yes, as of the latest NPPES snapshot, NPI 1770529547 is active (record last updated 2007-07-09).

How do I verify William Mayhall's NPI record?

Cross-check NPI 1770529547 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Renata Chalukian Peer Specialist · Salem, OR NPI 1326747452 Church at the Park Religious Nonmedical Health Care Institution · Salem, OR NPI 1558061028

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-09.