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

Jefferson Wen

Individual provider Internal Medicine Physician · NPI 1851825087

Jefferson Wen practises Internal Medicine in San Carlos, California. Graduated from Temple University School of Medicine in 2017, 9 years ago. Practices with Sutter Bay Medical Foundation, a 3,762-clinician group, works from 2 locations and offers telehealth. Licensed in California.

Years since qualifying
9
Trained at
Temple University School of Medicine
Licensed in
CA
In the registry since
2017
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Practice location Address checks out

301 Industrial Rd
San Carlos, CA 94070-2603
Phone: (650) 596-4000
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 (1)

  • 2351 Clay St, San Francisco, CA 94115-1931 — (415) 600-6000

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence A160266 (CA)

Record details

NPI number1851825087
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedApril 13, 2017
Last updated in NPPESSeptember 21, 2020
Certification dateSeptember 21, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolTEMPLE UNIVERSITY SCHOOL OF MEDICINE
Graduated 2017 (9 years in practice)
Group practice Sutter Bay Medical Foundation — 3762 clinicians
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services
Practice locations2 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients200
Services billed 5,566 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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. Those with a page here are linked.

  • Chinese Hospital Hospital · San Francisco, CA · listed as Chinese Hospital Association
  • Peninsula Medical Center Hospital · Burlingame, CA · listed as Peninsula Medical Group
  • Sutter Care At Home Home health agency · San Mateo, CA

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 San Carlos