Liza Valdivia, M.D.

NPI 1386904274ActiveIndividual· Internal Medicine, Infectious Disease· San Francisco, CA

Internal Medicine, Infectious Disease (M.D.) in San Francisco, California, trained at Tufts University School of Medicine (class of 2012). Their prescriptions cost Medicare Part D more than their services did: $954,724 for 1,167 claims, against $13,628 paid for services in 2024. Gilead Sciences, Inc. reported $21.89 in payments in 2024, mostly food and beverage.

Overview

NPI	1386904274
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	Yes
NPI issued	May 24, 2012
Last updated in NPPES	Oct 27, 2022
Certified by provider	Oct 27, 2022

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Infectious Disease Primary	207RI0200X	A166589	CA
Internal Medicine	207R00000X	A166589	CA

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Nov 10, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026	No match	—
New York OMIG · Nov 11, 2026	No match	—
Ohio Medicaid · Nov 11, 2026	No match	—
Pennsylvania Medicheck · Nov 11, 2026	No match	—
Washington HCA · Nov 11, 2026	No match	—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Infectious Disease (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	65
Services billed	199 across 12 procedure codes
Paid by Medicare	$13,628

Part D prescriptions in 2024

Prescriptions (claims)	1,167 · 1,393 30-day fills
Patients	66
Total drug cost	$954,724
Generic share	68% of claims

Medicare sources and data years

Education and affiliations

Medical school	Tufts University School of Medicine
Graduation year	2012
Medicare specialty	Infectious Disease
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth