Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Steven Don Mickelson, PA
Physician Assistant in Sonoma, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1477673804
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Registry record
Entity type Individual (Type 1)
Name Mr. Steven Don Mickelson
Credential PA
Sex Male
Practice address 651 1st St W Ste L, Sonoma, CA, 95476
Phone (415) 927-0666
Enumeration date Mar 30, 2007
Last updated in NPPES Apr 4, 2025
Taxonomy & licenses
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA05217 (TX) Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA65992 (CA) 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.
Frequently asked questions
What is the NPI number for Steven Mickelson?
The National Provider Identifier (NPI) for Steven Mickelson is 1477673804, a Type 1 (individual) record in the CMS NPPES registry.
Where does Steven Mickelson practice?
The practice location on file with NPPES is in Sonoma, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-04.