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

Megan McGuinness Masten, MD

Individual provider Obstetrics & Gynecology Physician · NPI 1730642463

Megan McGuinness Masten, MD is an Obstetrics/Gynecology in Portland, Maine. Qualified in 2019, 7 years ago. Practices with Mainehealth, a 2,615-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Colorado and Maine.

Years since qualifying
7
Licensed in
CO, ME
In the registry since
2019
Specialties on file
3
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

887 Congress St Ste 200
Portland, ME 04102-3166
Phone: (207) 771-5549
Fax: (207) 771-7834
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 1635 Aurora Ct, Aurora, CO 80045-2541 — (720) 848-0000
  • 777 Bannock St, Denver, CO 80204-4597 — (303) 436-4949
  • 22 Bramhall St, Portland, ME 04102-3134 — (207) 662-5400

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence MD29683 (ME)
Obstetrics & Gynecology Physician Taxonomy 207V00000X · Licence DR.0070498 (CO)
Complex Family Planning Physician Taxonomy 207VC0300X · Licence MD29683 (ME)

Record details

NPI number1730642463
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 10, 2019
Last updated in NPPESJuly 30, 2025
Certification dateJuly 30, 2025

Medicare enrollment

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

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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