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

Dr. San Tso, DO

Individual provider Family Medicine Physician · NPI 1598876716

Dr. San Tso, DO is registered under Family Practice in Stockton, California. Graduated from University of California, Davis School of Medicine in 2000, 26 years ago. Practices with Ht Family Physicians Inc, a 4-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
26
Trained at
University of California, Davis School of Medicine
Licensed in
CA
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

77 W March Ln Ste A
Stockton, CA 95207-5723
Phone: (209) 477-5552
Fax: (209) 477-5553
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 20A7328 (CA)

Record details

NPI number1598876716
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 31, 2006
Last updated in NPPESMarch 16, 2020
Certification dateMarch 16, 2020

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF CALIFORNIA, DAVIS SCHOOL OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice Ht Family Physicians Inc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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 patients319
Services billed 1,647 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.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $3,225 162 payments · a meal or drink at a meeting or visit, not a fee
Entertainment $17 1 payment

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Memorial Medical Center Hospital · Modesto, CA
  • St Joseph'S Medical Center Of Stockton Hospital · Stockton, CA · listed as St Joseph's Medical Center
  • Careone Home Health And Hospice, Inc Home health agency · Salida, CA
  • Adventist Health Lodi Memorial Hospital · Lodi, CA
  • Adventist Health Home Care Services Home health agency · Lodi, CA
  • Sky Healthcare Home Health Services Home health agency · Pleasanton, CA
  • St Joseph'S Medical Center Home Health Home health agency · Stockton, CA

Colleagues at Ht Family Physicians Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Stockton