Timothy Q. Offensend, MD

NPI 1083667539ActiveIndividual· Internal Medicine· San Mateo, CA

Internal Medicine (MD) in San Mateo, California, trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University (class of 1987). Their prescriptions cost Medicare Part D more than their services did: $1,470,170 for 7,553 claims, against $113,748 paid for services in 2024. E.R. Squibb & Sons, L.L.C. reported $500.00 in payments in 2024, mostly consulting fees.

Overview

NPI	1083667539
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	May 18, 2006
Last updated in NPPES	Dec 30, 2019
Certified by provider	Dec 30, 2019

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	A053287	CA
Specialist	174400000X	A053287	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 - Internal Medicine (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	381
Services billed	4,401 across 31 procedure codes
Paid by Medicare	$113,748

Part D prescriptions in 2024

Prescriptions (claims)	7,553 · 18,645 30-day fills
Patients	609
Total drug cost	$1,470,170
Generic share	78% of claims

Medicare sources and data years

Education and affiliations

Medical school	Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University
Graduation year	1987
Medicare specialty	Internal Medicine
Secondary specialties	Endocrinology