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

Timothy Guenther, MD

Individual provider Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · NPI 1003261892

Timothy Guenther, MD is a Cardiac Surgery in Travis AFB, California. Qualified in 2016, 10 years ago. Practices with Northbay Physicians Surgery Center, LLC, a 337-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
10
Licensed in
CA
In the registry since
2016
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

101 Bodin Cir
Travis AFB, CA 94535-1809
Phone: (707) 423-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician (primary) Taxonomy 208G00000X · Licence 151538 (CA)

Record details

NPI number1003261892
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 28, 2016
Last updated in NPPESSeptember 2, 2025
Certification dateSeptember 2, 2025
Mailing address101 Bodin Cir, Travis Afb, CA 94535-1809

Medicare enrollment

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

Medicare specialtyCARDIAC SURGERY
Medical schoolOTHER
Graduated 2016 (10 years in practice)
Group practice Northbay Physicians Surgery Center, Llc — 337 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Travis AFB