Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jon M. Penhorwood, PA

Physician Assistant in Holland, MI · enumerated 2013.

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

National Provider Identifier

1457772444

Verified

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Registry record

Entity type Individual (Type 1)

Name Jon M. Penhorwood

Credential PA

Sex Male

Practice address 602 Michigan Ave, Holland, MI, 49423

Phone (616) 546-4950

Enumeration date Dec 18, 2013

Last updated in NPPES Dec 18, 2013

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 5601006901 (MI) Primary

PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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 Jon Penhorwood?

The National Provider Identifier (NPI) for Jon Penhorwood is 1457772444, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jon Penhorwood practice?

The practice location on file with NPPES is in Holland, MI. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

William Frauenheim Cardiovascular Disease Physician · Holland, MI NPI 1497746952 Thomas Wolf Physician Assistant · Holland, MI NPI 1629059480 Western Michigan Pathology Associates, LLC Anatomic Pathology & Clinical Pathology Physician · Holland, MI NPI 1053394080 Edward Fody Anatomic Pathology & Clinical Pathology Physician · Holland, MI NPI 1619950649 Lee Ruotsi Undersea and Hyperbaric Medicine (Preventive Medicine) Physician · Holland, MI NPI 1376504605 Donald Fix Emergency Medical Services (Emergency Medicine) Physician · Holland, MI NPI 1588621239 Timothy Gezon Emergency Medical Services (Emergency Medicine) Physician · Holland, MI NPI 1770541328 Scott Loos Emergency Medical Services (Emergency Medicine) Physician · Holland, MI NPI 1427006964

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-12-18.