NPPES file of Aug 9, 2026

Doctors and health care providers in Lewiston, ME

1,728 individual NPPES records list a practice address in Lewiston, 4th of 190 Maine cities. The largest group is clinical social worker: 155, 9% of the city's records, against 11% across Maine. Page 14 of 35.

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

Lewiston in Maine

  • Rank in Maine4th of 190 cities by records
  • Share of the state5.3% of Maine's records
  • Specialties present25 or more taxonomy codes
  • Top three groups20.2% of all records
  • Clinical Social Worker rank4th of the 10 Maine cities with the most

Compared with Maine as a whole, Lewiston has 2.6× the state's share of emergency medicine physician records and 0.48× its share of mental health counselor records.

Providers in Lewiston, alphabetically

  1. Diane Greslick, PMHNP BC, CNPPsychiatric/Mental Health Nurse Practitioner1619241312
  2. Amanda Griffin, PHYSICAL THERAPISTContractor1396299046
  3. John Grigas, LCSWSocial Worker1699400770
  4. Maria Grill, M.S. OTR/LOccupational Therapist1144459678
  5. Angela Grondin, MOT, OTR/LOccupational Therapist1457595928
  6. Stacey Groomes, LMTMassage Therapist1558104166
  7. Patricia Grove, RNCertified Registered Nurse Anesthetist1073599718
  8. Jonathan Grover, BSNCertified Registered Nurse Anesthetist1548598733
  9. Savannah Grover, CADCAddiction (Substance Use Disorder) Counselor1013652817
  10. Elliot Gruen, DOPsychiatry Physician1295760106
  11. Maria Guay, OTR/LOccupational Therapist1619259173
  12. Murielle GuayClinical Social Worker1427135961
  13. Matthew Guede, PTPhysical Therapist1154600898
  14. Ashleigh Guild, LMSW-CCClinical Social Worker1093115164
  15. Kellie Guillies, DPTPhysical Therapist1932867793
  16. Andrew GumprechtPhysical Therapist1194652636
  17. John Gunel, DOFamily Medicine Physician1427439983
  18. Alyssa Gunville, PASurgical Physician Assistant1134773294
  19. Bindu Gupta, MDFamily Medicine Physician1750734430
  20. Sanjay Gupta, M.D.Surgical Critical Care Physician1801803523
  21. Sarah Gurney, FNPFamily Nurse Practitioner1316593171
  22. Ruy Gutierrez, MDAnesthesiology Physician1750310710
  23. Michelle Guzowski, MDPulmonary Disease Physician1396851093
  24. Kirsten Haas, PAPhysician Assistant1508346768
  25. Susan Hage, DOPhysical Medicine & Rehabilitation Physician1043285364
  26. Lindsay Hahn, M.D.Anesthesiology Physician1720440399
  27. Dayton Haigney, MDPain Medicine Physician1942277736
  28. Alice Haines, M.D.Family Medicine Physician1619967361
  29. Natalie HaleDevelopmental Therapist1538369715
  30. Debra Hall-RocheClinical Social Worker1194082156
  31. Ashlyn Hamann, MS OTR/LOccupational Therapist1306314166
  32. Abigail Hamilton, OTR/LOccupational Therapist1104307768
  33. Melinda Hamilton, PMHNPPsychiatric/Mental Health Nurse Practitioner1528956745
  34. Rosa Hamilton, ANPAdult Health Nurse Practitioner1447408760
  35. Wade HamiltonPediatric Cardiology Physician1851370068
  36. Candice Hammerton, NPFamily Nurse Practitioner1558306910
  37. Carrissa Hankins, FNP-CFamily Nurse Practitioner1619203270
  38. Debra Hannigan Anctil, MSSchool Psychologist1598482382
  39. Stan HansenSpeech-Language Pathologist1356541536
  40. Edward Hanson, LADCAddiction (Substance Use Disorder) Counselor1952741894
  41. R Hanson, MD, MPHInternal Medicine Physician1457356990
  42. Alyssa Hardacker, LMSW-CCClinical Social Worker1518218692
  43. Michael Hardel, MDAnesthesiology Physician1588741649
  44. Elizabeth HarlowPhysician Assistant1245931815
  45. Alan Harmatz, MDPlastic Surgery Physician1457362741
  46. Ashley Harmon, OTROccupational Therapist1871862920
  47. Matthew Harnden, FNP-CFamily Nurse Practitioner1417365099
  48. Ali HarrePersonal Care Attendant1386459766
  49. Brittany Harrington, CADCAddiction (Substance Use Disorder) Counselor1306292396
  50. Julia Harrington, RN,CRNACertified Registered Nurse Anesthetist1417523234

The largest Maine cities

  1. Portland6,022
  2. Bangor3,103
  3. Augusta1,740
  4. South Portland1,143
  5. Scarborough1,043

All of Maine →

How to read this directory

Lewiston, Maine appears in the CMS National Plan and Provider Enumeration System with 1,728 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 Lewiston - 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 Lewiston 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 Lewiston is weighted toward Clinical Social Worker (155 clinicians, followed by Occupational Therapist with 102 and Family Medicine Physician with 92). 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, Lewiston reports roughly 123.8 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Lewiston practice address, a coverage gap Lewiston patients typically fill by traveling to a larger nearby hub.

For Lewiston 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 Lewiston, ME?

There are 1,728 registered healthcare providers in Lewiston, ME, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Lewiston?

The most common specialties in Lewiston are Clinical Social Worker, Occupational Therapist, Family Medicine Physician, Addiction (Substance Use Disorder) Counselor, Physical Therapist. Clinical Social Worker has the most providers with 155.

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.