Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. John C Westerbeck, MD

Adolescent Medicine (Internal Medicine) Physician in Massillon, OH · enumerated 2005.

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

National Provider Identifier

1619974037

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Registry record

Entity type Individual (Type 1)

Name Dr. John C Westerbeck

Credential MD

Sex Male

Practice address 2037 Wales Rd Nw, Suite 130, Massillon, OH, 44646

Phone (330) 830-9378

Fax (330) 830-1534

Enumeration date Jun 30, 2005

Last updated in NPPES Dec 14, 2010

Taxonomy & licenses

207RA0000X Adolescent Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 053862 (OH) 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 1619974037 active?

Yes, as of the latest NPPES snapshot, NPI 1619974037 is active (record last updated 2010-12-14).

How do I verify John Westerbeck's NPI record?

Cross-check NPI 1619974037 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-12-14.