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

Preston Charles Maxim, MD

Individual provider Emergency Medicine Physician · NPI 1427090042

Preston Charles Maxim, MD is an Emergency Medicine in San Francisco, California. Graduated from University of Washington School of Medicine in 1995, 31 years ago. Practices with Innova Emergency Medical Associates PC, a 69-clinician group and accepts Medicare assignment. Licensed in Arizona and California.

Years since qualifying
31
Trained at
University of Washington School of Medicine
Licensed in
AZ, CA
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

1001 Potrero Ave Rm 1E21
San Francisco, CA 94110-3518
Phone: (415) 206-5753
Fax: (415) 206-5818
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence A70159 (CA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 59325 (AZ)

Record details

NPI number1427090042
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 11, 2006
Last updated in NPPESJanuary 16, 2025
Certification dateJanuary 16, 2025

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF WASHINGTON SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Innova Emergency Medical Associates Pc — 69 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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