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

Timothy F Tirrell, MD, PHD

Individual provider Surgery Physician · NPI 1386026128

Timothy F Tirrell, MD, PHD is a General Surgery in Palo Alto, California. Graduated from University of California, San Diego School of Medicine in 2015, 11 years ago. Practices with Lpch Medical Group Div of Lucile, a 337-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in California.

Years since qualifying
11
Trained at
University of California, San Diego School of Medicine
Licensed in
CA
In the registry since
2015
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

725 Welch Rd
Palo Alto, CA 94304-1601
Phone: (650) 497-8000
Show map & directions

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

Additional practice locations (1)

  • 200 W Arbor Dr # 8220, San Diego, CA 92103-1911 — (619) 471-3859

Specialties & licences

Pediatric Surgery Physician (primary) Taxonomy 2086S0120X · Licence A145045 (CA)
Surgery Physician Taxonomy 208600000X · Licence A145045 (CA)
Surgical Critical Care Physician Taxonomy 2086S0102X · Licence A145045 (CA)

Record details

NPI number1386026128
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 28, 2015
Last updated in NPPESNovember 11, 2024
Certification dateNovember 11, 2024

Medicare enrollment

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

Medicare specialtyGENERAL SURGERY
Medical schoolUNIVERSITY OF CALIFORNIA, SAN DIEGO SCHOOL OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Lpch Medical Group Div Of Lucile — 337 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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