Philbert T. Yau, M.D.

NPI 1386689172ActiveIndividual· Internal Medicine· The Woodlands, TX

Internal Medicine (M.D.) in The Woodlands, Texas, trained at University of Texas Medical School at Houston (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $312,551 for 2,395 claims, against $55,946 paid for services in 2024. Dexcom, Inc. was the largest of 2 companies reporting payments in 2025, $32.50 in all, mostly food and beverage.

Overview

NPI	1386689172
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Jun 17, 2006
Last updated in NPPES	Jul 15, 2007

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine Primary	207R00000X	M0980	TX
Pediatrics	208000000X	M0980	TX

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 (TX)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	116
Services billed	912 across 22 procedure codes
Paid by Medicare	$55,946

Part D prescriptions in 2024

Prescriptions (claims)	2,395 · 5,960 30-day fills
Patients	253
Total drug cost	$312,551
Generic share	86% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Texas Medical School at Houston
Graduation year	2001
Medicare specialty	Internal Medicine
Secondary specialties	Pediatric Medicine