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

Dr. Jennifer C Lai, MD, MBA

Individual provider Internal Medicine Physician · NPI 1649397241

Dr. Jennifer C Lai, MD, MBA practises Gastroenterology in San Francisco, California. Graduated from Tufts University School of Medicine in 2005, 21 years ago. Practices with UCSF Medical Group Business Services, a 1,531-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California and New York.

Years since qualifying
21
Trained at
Tufts University School of Medicine
Licensed in
CA, NY
In the registry since
2007
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
MBA — Master of Business Administration
A graduate business degree.

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Practice location Address checks out

350 Parnassus Ave 3rd Fl
San Francisco, CA 94117-3608
Phone: (415) 353-2318
Fax: (415) 353-2407
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 513 Parnassus Ave, San Francisco, CA 94143-2205 — (415) 353-2318

Specialties & licences

Transplant Hepatology Physician (primary) Taxonomy 207RT0003X · Licence A101839 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence A101839 (CA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 243395 (NY)

Record details

NPI number1649397241
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD , MBA
Sole proprietorYes
NPI enumeratedMarch 26, 2007
Last updated in NPPESAugust 6, 2023
Certification dateAugust 6, 2023

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Ucsf Medical Group Business Services — 1531 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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 patients107
Services billed 266 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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.

Consulting Fee $12,600 4 payments
Travel and Lodging $8,734 6 payments · travel or lodging paid or reimbursed, such as to attend a conference
Food and Beverage $247 5 payments · a meal or drink at a meeting or visit, not a fee

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.

  • Ucsf Medical Center Hospital · San Francisco, CA
  • Marinhealth Medical Center Hospital · Greenbrae, CA

Colleagues at UCSF Medical Group Business Services

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1531 clinicians in the practice; 12 are shown here.

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