Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Maureen Megan O'Brien, MD

Individual provider Pediatric Hematology & Oncology Physician · NPI 1710194881

Dr. Maureen Megan O'Brien, MD is a Hematology/Oncology in Aurora, Colorado. Graduated from Harvard Medical School in 2000, 26 years ago. Practices with University Physicians Incorporated, a 3,148-clinician group and accepts Medicare assignment. Licensed in Colorado and Ohio.

Years since qualifying
26
Trained at
Harvard Medical School
Licensed in
CO, OH
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

13123 E 16th Ave
Aurora, CO 80045-7106
Phone: (720) 777-1234
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Hematology & Oncology Physician (primary) Taxonomy 2080P0207X · Licence DR.0071919 (CO)
Pediatric Hematology & Oncology Physician Taxonomy 2080P0207X · Licence 35.094197 (OH)

Record details

NPI number1710194881
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 17, 2007
Last updated in NPPESNovember 16, 2023
Certification dateNovember 16, 2023

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY/ONCOLOGY
Also practisesPEDIATRIC MEDICINE
Medical schoolHARVARD MEDICAL SCHOOL
Graduated 2000 (26 years in practice)
Group practice University Physicians Incorporated — 3148 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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