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

Grant R Gwinup, MD

Individual provider General Practice Physician · NPI 1669463964

Grant R Gwinup, MD is an Emergency Medicine in Placerville, California. Graduated from University of Arizona College of Medicine in 1984, 42 years ago. Practices with Marshall Medical Center, a 171-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
42
Trained at
University of Arizona College of Medicine
Licensed in
CA
In the registry since
2005
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

1095 Marshall Way Ste 203
Placerville, CA 95667-5722
Phone: (530) 344-5496
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1100 Marshall Way, Placerville, CA 95667-6533 — (530) 622-1441
  • 825 Delbon Ave, Turlock, CA 95382-2016 — (209) 342-2300

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence G57154 (CA)
General Practice Physician Taxonomy 208D00000X · Licence G57154 (CA)

Record details

NPI number1669463964
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 4, 2005
Last updated in NPPESJuly 21, 2022

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF ARIZONA COLLEGE OF MEDICINE
Graduated 1984 (42 years in practice)
Group practice Marshall Medical Center — 171 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Placerville