Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Thomas John Peitz, MD

Individual provider Emergency Medicine Physician · NPI 1770574097

Thomas John Peitz, MD practises Emergency Medicine in Santa Rosa, California. Graduated from University of California, Geffen School of Medicine in 1990, 36 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
36
Trained at
University of California, Geffen School of Medicine
Licensed in
CA
In the registry since
2005
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

3883 Airway Dr Ste 120
Santa Rosa, CA 95403-1678
Phone: (707) 521-4495
Fax: (707) 573-5421
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Additional practice locations (3)

  • 1101 Van Ness Ave, San Francisco, CA 94109-6919 — (415) 600-3333
  • 3555 Cesar Chavez, San Francisco, CA 94110-4403 — (415) 641-6625
  • 30 Mark West Springs Rd, Santa Rosa, CA 95403-1436 — (707) 576-4040

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence G72830 (CA)

Record details

NPI number1770574097
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 4, 2005
Last updated in NPPESMay 18, 2023
Certification dateMay 18, 2023

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolUNIVERSITY OF CALIFORNIA, GEFFEN SCHOOL OF MEDICINE
Graduated 1990 (36 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients210
Services billed 295 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

Colleagues at Sutter Bay Medical Foundation

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3762 clinicians in the practice; 12 are shown here.

Other providers in Santa Rosa