Doctor profile · Federal record

Dr. Maureen O'Brien, M.D.

Pediatric Hematology & Oncology Physician (CMS: Hematology/Oncology) · Pediatric Hematology & Oncology Physician · Aurora, CO

  • NPI 1710194881
  • Accepts Medicare
  • 26 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
13123 E 16Th Ave
Aurora, CO 800457106
(720) 777-1234
Mailing address
Po Box 110429
Aurora, CO 800420429

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
November 16, 2023
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
2080P0207X — NUCC code
State licenses (2)
Colorado #DR.0071919 · Ohio #35.094197

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1710194881. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$3,334
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
PFIZER INC. 1 $3,200.00
Amgen Inc. 1 $133.76

By nature of payment

Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program
$3,200
Food and Beverage
$134

Frequently asked questions

Auto-generated from federal data
What is Dr. Maureen O'Brien's medical specialty?
Dr. Maureen O'Brien practices Pediatric Hematology & Oncology Physician in Aurora, CO.
Where does Dr. Maureen O'Brien practice?
Dr. Maureen O'Brien practices at 13123 E 16Th Ave, Aurora, CO 800457106. Office phone: 7207771234.
What is Dr. Maureen O'Brien's NPI?
Dr. Maureen O'Brien's National Provider Identifier (NPI) is 1710194881, issued by NPPES.
Does Dr. Maureen O'Brien accept Medicare assignment?
Yes. Dr. Maureen O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.