Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Semon Bader, MD PC

Organization Ambulatory Surgical Clinic/Center · NPI 1932461761

Semon Bader, MD PC is an Ambulatory Surgical Clinic/Center in Walnut Creek, California. Licensed in California. Registered with an NPI since 2012.

Licensed in
CA
In the registry since
2012
Specialties on file
2
What do these letters mean?
PC — Professional corporation
A form of business registration, not a clinical qualification.

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Practice location Address checks out

1000 Springfield Dr
Walnut Creek, CA 94598-4341
Phone: (650) 515-1894
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ambulatory Surgical Clinic/Center (primary) Taxonomy 261QA1903X · Licence A98350 (CA)
General Acute Care Hospital Taxonomy 282N00000X · Licence A98350 (CA)

Record details

NPI number1932461761
Entity typeOrganization (Type 2)
Organization subpartNo
Authorized official Semon Bader — Ceo · (650) 515-1894
NPI enumeratedJune 7, 2012
Last updated in NPPESJune 7, 2012
Mailing address1000 Springfield Dr, Walnut Creek, CA 94598-4341

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