Doctors and health care providers in Greenville, ME
13 individual NPPES records list a Greenville practice address, 160th of 190 Maine cities. The largest group is physician assistant: 2, 15% of the city's records, against 3% across Maine.
The 8 largest groups in Greenville
Source: CMS NPPES primary taxonomy, loaded Aug 27, 2026.
Greenville in Maine
- Rank in Maine160th of 190 cities by records
- Share of the state<0.1% of Maine's records
- Specialties present9 taxonomy codes
- Top three groups46.2% of all records
- Physician Assistant rank11th of the 10 Maine cities with the most
Providers in Greenville, alphabetically
- Dorothy BennettSpeech-Language Pathologist1629350954
- Bonnine BouchardDevelopmental Therapist1235465881
- Kathy Castonguay, LCPC,NCCMental Health Counselor1750363883
- Gregg Christensen, PAPhysician Assistant1790733376
- Lawrence Dubien, MDFamily Medicine Physician1548368699
- Karen Glavin, PTPhysical Therapist1659687028
- Michael HarrisPharmacist1104396167
- John Huntley, DMDGeneral Practice Dentistry1477587988
- Megan Jennison, PHARMDPharmacist1386012953
- Jaime Knowlton, P.A.-CPhysician Assistant1851673503
- Angie Madore, OTOccupational Therapist1992011340
- Darin Peck, M.D.Family Medicine Physician1316995046
- Martha Pfirman, SLPSpeech-Language Pathologist1942516158
The largest Maine cities
- Portland6,022
- Bangor3,103
- Augusta1,740
- Lewiston1,728
- South Portland1,143
How to read this directory
Greenville, Maine appears in the CMS National Plan and Provider Enumeration System with 13 registered healthcare providers spanning 9 distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Greenville - physicians, dentists, nurse practitioners, physician assistants, chiropractors, physical therapists, optometrists, psychologists, podiatrists, and every other credentialed provider type CMS tracks. It does not measure hospital beds, urgent-care capacity, or whether a given clinic is accepting new patients; it measures the pool of professionals with current NPI enrollment and a Greenville practice location on file. Every figure is drawn from the federal National Provider Identifier Registry (CMS NPPES) - more than 7 million providers, maintained since May 2007, with 2024 Medicare Part D data, and, according to CMS, can be searched, compared, and traced in our methodology.
The provider mix in Greenville is weighted toward Physician Assistant (2 clinicians, followed by Speech-Language Pathologist with 2 and Family Medicine Physician with 2). That distribution reflects how NPPES records specialty: providers self-select a primary taxonomy code, so a family physician who also practices geriatrics will show up under whichever NUCC code they registered first. Relative to Maine's population, Greenville reports roughly 0.9 providers per 100,000 residents using the state-level denominator, which is a rough proxy rather than a precise access-to-care measurement; the true catchment area of any {cityName} clinician extends beyond the municipal boundary.
Of Maine's most common specialties, Clinical Social Worker is the most prominent one with no provider currently listing a Greenville practice address, a coverage gap Greenville patients typically fill by traveling to a larger nearby hub.
For Greenville patients, this directory is most useful as a starting shortlist. Important: PlainDoctor is a directory of publicly available CMS government data, not a review site, a ranking, or medical advice. NPPES data is self-reported and refreshed monthly; call the practice directly to confirm the provider is still there, accepts your insurance, and is taking new patients.
For informational purposes only; this directory is not medical advice and not a substitute for checking a license. See also: how to find a doctor and how to verify one.
Common questions
How many doctors are in Greenville, ME?
There are 13 registered healthcare providers in Greenville, ME, covering 9 specialties. This includes physicians, dentists, therapists, and other licensed providers.
What are the most common medical specialties in Greenville?
The most common specialties in Greenville are Physician Assistant, Speech-Language Pathologist, Family Medicine Physician, Pharmacist, Occupational Therapist. Physician Assistant has the most providers with 2.
Source: CMS National Plan and Provider Enumeration System (NPPES), file loaded Aug 27, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.