Margaret A. Tempero, MD

NPI 1225095730ActiveIndividual· Internal Medicine· San Francisco, CA

Internal Medicine (MD) in San Francisco, California, trained at University of Nebraska College of Medicine (class of 1977). Enrolled in Medicare as practitioner - medical oncology. E.R. Squibb & Sons, L.L.C. was the largest of 4 companies reporting payments in 2025, $31,045 in all, mostly consulting fees.

Overview

NPI	1225095730
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Apr 27, 2006
Last updated in NPPES	Jul 23, 2008

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	G85868	CA
Internal Medicine, Hematology	207RH0000X	G85868	CA
Internal Medicine, Medical Oncology	207RX0202X	G85868	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 - Medical Oncology (CA)

Medicare sources and data years

Education and affiliations

Medical school	University of Nebraska College of Medicine
Graduation year	1977
Medicare specialty	Medical Oncology
Secondary specialties	Hematology
Telehealth	Offers telehealth