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 11 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. Ronnie Marrache, MDHospitalist Physician1821172396
  2. Candace Marriner, LCSWMental Health Counselor1174785430
  3. Deborah Martin, FNPNurse Practitioner1518166636
  4. Diana Martin, RPHPharmacist1700488830
  5. Maureen Martin, MOT, OTR/LOccupational Therapist1629488234
  6. Thomas Martin, M.D.Addiction Medicine (Preventive Medicine) Physician1356520647
  7. Matthew Mason, DOPediatrics Physician1659878254
  8. Rebecca MasonPhysical Therapy Assistant1518605526
  9. Sonia Masse, MS, PA, ATC, PESPhysician Assistant1801922976
  10. Brigitte Massey, PHYSICAL THERAPISTPhysical Therapist1780720128
  11. Mandy Massey, NPNurse Practitioner1588391007
  12. William Mathes, DCChiropractor1346390457
  13. Andrea Mathieu, FNP-CNurse Practitioner1629022132
  14. Jeff Matranga, PH.D., ABPPHealth Service Psychologist1871500090
  15. William Matuzas, MDPsychiatry Physician1881653780
  16. Amy Mayhew, LADCAddiction (Substance Use Disorder) Counselor1285775767
  17. Mark McAllister, MDFamily Medicine Physician1386844157
  18. Brian McArthur, CCPCCounselor1093467821
  19. Sonja McAvoy, SLP-ASpeech-Language Assistant1508172966
  20. Dennis McCann, MDEmergency Medicine Physician1578522488
  21. Kelly McCarthySocial Worker1447840632
  22. Michelle McCauleyAddiction (Substance Use Disorder) Counselor1356981575
  23. William McDougall, DONeuromusculoskeletal Medicine & OMM Physician1417336603
  24. Kerri McGlew, PACPhysician Assistant1760467179
  25. Julie McGowanSpeech-Language Assistant1588996516
  26. Timothy McGraw, M.D.Dermatology Physician1265433494
  27. Christopher McKinnon, CADCAddiction (Substance Use Disorder) Counselor1417459017
  28. Kathryn McLaughlinOccupational Therapist1528540507
  29. Grace McLean, COTA/LOccupational Therapy Assistant1457976391
  30. Jane McMorrow, LCPCCounselor1386766582
  31. Ruth McNiff, PAPhysician Assistant1720219090
  32. Debra McSweeneyPhysical Therapist1750762860
  33. Thomas McWalters, LADCAddiction (Substance Use Disorder) Counselor1013156389
  34. Lisa Meacham, LSW, CADCAddiction (Substance Use Disorder) Counselor1023616562
  35. Susan Melcher, LCPCProfessional Counselor1598805418
  36. Benjamin MelladyPsychiatric/Mental Health Nurse Practitioner1982568739
  37. Tamara Mello, LCPC-CProfessional Counselor1871875690
  38. Kathy Merrill, SLPSpeech-Language Pathologist1740596519
  39. Stacey Merrill, LCPCProfessional Counselor1861885337
  40. Norman Merritt, LPNLicensed Practical Nurse1538890280
  41. Jennifer MerryRegistered Nurse First Assistant1134990005
  42. Nicole Metcalf, MSN, RN, CPNPPediatric Nurse Practitioner1962885806
  43. Alexandra Michaud, LMSW-CCClinical Social Worker1053207134
  44. Diana Michaud, PTAPhysical Therapy Assistant1073573069
  45. Sally Michaud, MS, OTR/LOccupational Therapist1235460734
  46. Stephanie MichaudSocial Worker1265277875
  47. Jennifer MiglioreRegistered Dietitian1639604333
  48. Burton MillerAddiction (Substance Use Disorder) Counselor1093245508
  49. Todd Miller, M.D.Hospitalist Physician1972540912
  50. Nora Mills, AGACNP-BCNurse Practitioner1609552538

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.