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

Dr. Adam O'Brien, DO

Individual provider Internal Medicine Physician · NPI 1912380320

Dr. Adam O'Brien, DO is an Anesthesiology in Portland, Maine. Graduated from University of New England, College of Osteo Medicine in 2015, 11 years ago. Practices with Spectrum Healthcare Partners PA, a 298-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and Maine.

Years since qualifying
11
Trained at
University of New England, College of Osteo Medicine
Licensed in
MA, ME
In the registry since
2015
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

22 Bramhall St
Portland, ME 04102-3134
Phone: (207) 662-4594
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 324 Gannett Dr, South Portland, ME 04106-3270 — (207) 482-7800

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence DO2916 (ME)
Internal Medicine Physician Taxonomy 207R00000X · Licence 264684 (MA)

Record details

NPI number1912380320
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 2, 2015
Last updated in NPPESJune 4, 2019

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF NEW ENGLAND, COLLEGE OF OSTEO MEDICINE
Graduated 2015 (11 years in practice)
Group practice Spectrum Healthcare Partners Pa — 298 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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