NPPES file of Aug 9, 2026

Doctors and health care providers in Waterville, ME

870 individual NPPES records list a practice address in Waterville, 9th of 190 Maine cities. The largest group is clinical social worker: 84, 10% of the city's records, against 11% across Maine. Page 7 of 18.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Waterville in Maine

  • Rank in Maine9th of 190 cities by records
  • Share of the state2.6% of Maine's records
  • Specialties present25 or more taxonomy codes
  • Top three groups20.6% of all records
  • Clinical Social Worker rank10th of the 10 Maine cities with the most

Compared with Maine as a whole, Waterville has 8.1× the state's share of psychiatric/mental health registered nurse records and 0.55× its share of occupational therapist records.

Providers in Waterville, alphabetically

  1. Chelsea Gourley, LCPC-CProfessional Counselor1740064252
  2. Sara Graf, FNP-CPrimary Care Nurse Practitioner1376367086
  3. Monica Graves, FNP-CFamily Nurse Practitioner1841032950
  4. Jennifer Greene, RNRegistered Nurse1619550761
  5. Alissa Gregersen, AG-ACNPNurse Practitioner1922508902
  6. Mary Ellen Gregory, PERSONAL SUPPORTSContractor1093851636
  7. Skye Gregory-HatchAudiologist-Hearing Aid Fitter1285293035
  8. Hannah GrenierSpeech-Language Assistant1053723122
  9. Patricia Grenier, LCSWClinical Social Worker1265485296
  10. Margaret Griffin, M.D.Obstetrics & Gynecology Physician1447247028
  11. Laurie Guay, LCPC-CProfessional Counselor1588086201
  12. Kristina GueretteSpeech-Language Pathologist1225387368
  13. Amy Gurney, PTAPhysical Therapy Assistant1598922213
  14. Christina Gurney, P.T.Physical Therapist1659530228
  15. Susan Gurney, FNPFamily Medicine Physician1851448823
  16. Hillary HaaseOccupational Therapist1225561293
  17. Nour Maya Haddad, M.DOphthalmology Physician1689947731
  18. Walter Haines, PA-CPhysician Assistant1629253141
  19. Genevieve Hall, MDPhysical Medicine & Rehabilitation Physician1194706317
  20. Marta Hall, PMHNPPsychiatric/Mental Health Nurse Practitioner1164586418
  21. Jonathan Hallenbeck, M.D.Diagnostic Radiology Physician1760469563
  22. Nicole Hallett, LCSWClinical Social Worker1033962964
  23. Lois Hamel Corson, ANP, PHDAdult Health Nurse Practitioner1730135039
  24. Louise Hamelin, SLPSpeech-Language Pathologist1831405604
  25. Gail Hamilton, LCSWClinical Social Worker1679767305
  26. Kerri Hammond, LMSW-CCSocial Worker1386120160
  27. Lauren Hample, LCSWMental Health Counselor1124456066
  28. Tara Hanrahan, RNAddiction (Substance Use Disorder) Registered Nurse1124998653
  29. Kelly Hanscom, PTErgonomics Physical Therapist1003025214
  30. Jennifer Hanson, LPCMental Health Counselor1417621889
  31. Caylee HapworthBehavior Analyst1053094250
  32. Soliana Harnish, LCSWClinical Social Worker1689358848
  33. Gabrielle Harpell, M.D.Pediatrics Physician1699974931
  34. Aubree Harris, RNPsychiatric/Mental Health Registered Nurse1780066365
  35. Denise Hart, LCSWClinical Social Worker1467590844
  36. Elizabeth Hartford, L.C.S.WClinical Social Worker1992011563
  37. Samantha Harvey, LMSW-CCSocial Worker1467331447
  38. Elizabeth HarwoodNurse Practitioner1033694807
  39. Sally Harwood, PH.D.Professional Counselor1063658482
  40. Sayeedul Hasan, M.B.B.SInternal Medicine Physician1609252394
  41. David Hay, MDGastroenterology Physician1093804882
  42. Penny Hay, PTPhysical Therapist1154680577
  43. Nathan Hayes, MS, PA-CPhysician Assistant1922205756
  44. Marie Haywood, CADCAddiction (Substance Use Disorder) Counselor1891279238
  45. Kristen Heil, ED.S.Psychologist1598016602
  46. Elizabeth Held, PA-CMedical Physician Assistant1225350309
  47. Timothy Hendrickson, DONephrology Physician1861468522
  48. Aimee Herron, CCC-SLPSpeech-Language Pathologist1205503026
  49. Kellie Hess, RNPsychiatric/Mental Health Registered Nurse1477979235
  50. Christie Hesseltine, LADCAddiction (Substance Use Disorder) Counselor1073709713

The largest Maine cities

  1. Portland6,022
  2. Bangor3,103
  3. Augusta1,740
  4. Lewiston1,728
  5. South Portland1,143

All of Maine →

How to read this directory

Waterville, Maine appears in the CMS National Plan and Provider Enumeration System with 870 registered healthcare providers spanning 25 or more distinct NUCC-taxonomy specialties. This count includes every individual clinician who has applied for an NPI and listed a practice address in Waterville - 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 Waterville 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 Waterville is weighted toward Clinical Social Worker (84 clinicians, followed by Addiction (Substance Use Disorder) Counselor with 49 and Professional Counselor with 46). 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, Waterville reports roughly 62.3 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.

For Waterville 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 Waterville, ME?

There are 870 registered healthcare providers in Waterville, ME, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Waterville?

The most common specialties in Waterville are Clinical Social Worker, Addiction (Substance Use Disorder) Counselor, Professional Counselor, Family Medicine Physician, Family Nurse Practitioner. Clinical Social Worker has the most providers with 84.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov). Records are self-reported registrations, not licenses.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.