Oliver Richard Sum-Ping, MD

NPI 1972894129ActiveIndividual· Psychiatry & Neurology, Sleep Medicine· Stanford, CA

Psychiatry & Neurology, Sleep Medicine (MD) in Stanford, California, trained at University of Texas Southwestern Medical School at Dallas (class of 2011). Their prescriptions cost Medicare Part D more than their services did: $164,165 for 201 claims, against $42,952 paid for services in 2024. Takeda Pharmaceuticals U.S.A., Inc. was the largest of 3 companies reporting payments in 2025, $17,128 in all, mostly consulting fees.

Overview

NPI	1972894129
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Apr 22, 2011
Last updated in NPPES	Apr 30, 2024
Certified by provider	Apr 30, 2024

Specialties and licenses

Taxonomy	Code	License	State
Psychiatry & Neurology, Sleep Medicine Primary	2084S0012X	A136548	CA
Psychiatry & Neurology, Neurology	2084N0400X	A136548	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 - Sleep Medicine (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	358
Services billed	572 across 13 procedure codes
Paid by Medicare	$42,952

Part D prescriptions in 2024

Prescriptions (claims)	201 · 260 30-day fills
Patients	31
Total drug cost	$164,165
Generic share	97% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of Texas Southwestern Medical School at Dallas
Graduation year	2011
Medicare specialty	Sleep Medicine
Secondary specialties	Neurology
Telehealth	Offers telehealth