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

Dr. Thalia Mayes, MD

Individual provider Gastroenterology Physician · NPI 1033126826

Dr. Thalia Mayes, MD is a Gastroenterology in Portland, Maine. Graduated from University of Rochester School of Medicine and Dentistry in 2002, 24 years ago. Practices with Portland Gastroenterology Associates PA, a 22-clinician group and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
24
Trained at
University of Rochester School of Medicine and Dentistry
Licensed in
ME
In the registry since
2006
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

161 Marginal Way
Portland, ME 04101-2438
Phone: (207) 773-7964
Fax: (207) 773-9073
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 017618 (ME)

Record details

NPI number1033126826
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 2, 2006
Last updated in NPPESSeptember 8, 2022
Certification dateSeptember 8, 2022
Mailing address161 Marginal Way, Portland, ME 04101-2438

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolUNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
Graduated 2002 (24 years in practice)
Group practice Portland Gastroenterology Associates Pa — 22 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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