Physician Profile
Based in Brunswick, ME, Gregory George Gensheimer, M.D. is listed in the NPI registry under ophthalmology. Gregory graduated from University of Rochester School of Medicine and Dentistry in 1977. Medicare claims data shows Gregory provided 527 services to 416 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Source: NPPES NPI Registry
8 MASON ST
Brunswick, ME 04011
Within Ophthalmology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Most searched procedures
527 services · 416 patients · 7 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient complete exam of visual system | Treatment | 92014 |
135 |
| Imaging of optic nerve | Treatment | 92133 |
124 |
| Imaging of retina | Treatment | 92134 |
46 |
| Exam of visual field with extended testing | Treatment | 92083 |
25 |
| New patient complete exam of visual system | Treatment | 92004 |
18 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
127 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
52 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Gensheimer is an ophthalmology in Brunswick, ME. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “OPHTHALMOLOGY”.
NPI registry
Dr. Gensheimer is listed at 8 MASON ST, Brunswick, ME 04011. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (207) 729-7971. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Dr. Gensheimer's National Provider Identifier is 1740202621. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Dr. Gensheimer attended University of Rochester School of Medicine and Dentistry, graduating in 1977. This comes from the CMS National Downloadable File.
CMS public data
Dr. Gensheimer has 49 years experience. Calculated from a graduation year of 1977, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Gensheimer provides treatments such as established patient complete exam of visual system and imaging of optic nerve, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gensheimer. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.