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

Thomas Winfield Keown, MD

Individual provider Emergency Medicine Physician · NPI 1992368781

Thomas Winfield Keown, MD is an Emergency Medicine in Vacaville, California. Qualified in 2019, 7 years ago. Practices with Permanente Medical Group Inc, a 10,941-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
7
Licensed in
CA
In the registry since
2019
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

1 Quality Dr
Vacaville, CA 95688-9494
Phone: (707) 624-2600
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 975 Sereno Dr, Vallejo, CA 94589-2441 — (707) 651-1025

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence A176080 (CA)

Record details

NPI number1992368781
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2019
Last updated in NPPESJuly 12, 2022
Certification dateJuly 12, 2022

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Permanente Medical Group Inc — 10941 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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