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

Dr. Gregory George Gensheimer, MD

Individual provider Ophthalmology Physician · NPI 1740202621

Dr. Gregory George Gensheimer, MD is an Ophthalmology in Brunswick, Maine. Graduated from University of Rochester School of Medicine and Dentistry in 1977, 49 years ago. Practices with Mainehealth, a 2,615-clinician group and accepts Medicare assignment. Licensed in Maine.

Years since qualifying
49
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

8 Mason St
Brunswick, ME 04011-1514
Phone: (207) 729-7971
Fax: (207) 725-7910
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Ophthalmology Physician (primary) Taxonomy 207W00000X · Licence 10700 (ME)

Record details

NPI number1740202621
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 23, 2006
Last updated in NPPESFebruary 8, 2016
Mailing address8 Mason St, Brunswick, ME 04011-1514

Medicare enrollment

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

Medicare specialtyOPHTHALMOLOGY
Medical schoolUNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
Graduated 1977 (49 years in practice)
Group practice Mainehealth — 2615 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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