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

Michael S Karls, PAC

Individual provider Physician Assistant · NPI 1801804737

Michael S Karls, PAC is a Physician Assistant in San Francisco, California. Qualified in 1995, 31 years ago. Practices with Csi Medical Group, a 104-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
31
Licensed in
CA
In the registry since
2006
What do these letters mean?
PAC — Physician Assistant, Certified
A physician assistant holding current national certification; usually written PA-C.

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Practice location Address checks out

45 Castro St 332
San Francisco, CA 94114-1010
Phone: (415) 861-8627
Fax: (415) 389-7455
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence PA17789 (CA)

Record details

NPI number1801804737
Entity typeIndividual (Type 1)
GenderMale
Credentials PAC
Sole proprietorNo
NPI enumeratedAugust 4, 2006
Last updated in NPPESJuly 25, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1995 (31 years in practice)
Group practice Csi Medical Group — 104 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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