Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Jon Michael Workman, DDS

Dentist in Arcadia, CA · enumerated 2006.

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

National Provider Identifier

1538221163

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Registry record

Entity type Individual (Type 1)

Name Jon Michael Workman

Credential DDS

Sex Male

Practice address 1245 W Huntington Dr, Suite 204, Arcadia, CA, 91007

Phone (626) 793-4517

Enumeration date Dec 13, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

122300000X Dentist Dental Providers · License BW034576 (CA) Primary

DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS 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.

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Frequently asked questions

Is NPI 1538221163 active?

Yes, as of the latest NPPES snapshot, NPI 1538221163 is active (record last updated 2007-07-08).

How do I verify Jon Workman's NPI record?

Cross-check NPI 1538221163 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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Douglas Hom Orthodontics and Dentofacial Orthopedics Dentistry · Arcadia, CA NPI 1760565501 Donna Arase General Practice Dentistry · Arcadia, CA NPI 1518096973 Donna N. Arase, D.D.S. General Practice Dentistry · Arcadia, CA NPI 1376672378 Alicia Porter Marriage & Family Therapist · Arcadia, CA NPI 1154543122 Kirk Matossian Dentist · Arcadia, CA NPI 1770787285 Walter M. Fierson, M.D.,P.C. Ophthalmology Physician · Arcadia, CA NPI 1134388374 Lesley Jeong Orthodontics and Dentofacial Orthopedics Dentistry · Arcadia, CA NPI 1578797197 Susan Reedy Marriage & Family Therapist · Arcadia, CA NPI 1437425998

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.