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

John M. Wiesenfarth, MD

Individual provider Emergency Medicine Physician · NPI 1659459360

John M. Wiesenfarth, MD is an Emergency Medicine in Sacramento, California. Graduated from R Franklin University of Med & SCI/Chicago Medical School in 1994, 32 years ago. Practices with Hawaii Permanente Medical Group Inc, a 705-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
32
Trained at
R Franklin University of Med & SCI/Chicago Medical School
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

2025 Morse Ave
Sacramento, CA 95825-2115
Phone: (916) 973-5000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence A61978 (CA)

Record details

NPI number1659459360
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 1, 2006
Last updated in NPPESDecember 22, 2021

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolR FRANKLIN UNIVERSITY OF MED & SCI/CHICAGO MEDICAL SCHOOL
Graduated 1994 (32 years in practice)
Group practice Hawaii Permanente Medical Group Inc — 705 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Sacramento