NPPES file of Aug 9, 2026

Doctors and health care providers in Lancaster, OH

1,601 individual NPPES records list a practice address in Lancaster, 30th of 711 Ohio cities. The largest group is case manager/care coordinator: 143, 9% of the city's records, against 11% across Ohio. Page 7 of 33.

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

Lancaster in Ohio

  • Rank in Ohio30th of 711 cities by records
  • Share of the state0.5% of Ohio's records
  • Specialties present25 or more taxonomy codes
  • Top three groups21.4% of all records

Compared with Ohio as a whole, Lancaster has 2.4× the state's share of peer specialist records and 0.54× its share of home health aide records.

Providers in Lancaster, alphabetically

  1. Jennifer D'Onofrio, PTPhysical Therapist1497805477
  2. Mark D'Onofrio, M.D.Orthopaedic Surgery Physician1316925811
  3. Andrew Dagg-Murry, MDInfectious Disease Physician1144210055
  4. David Dagg-Murry, PCCProfessional Counselor1326139429
  5. Anna Daggett, AU.D.Audiologist1811015001
  6. Ryan Dammerman, MDFamily Medicine Physician1932181153
  7. Bonnie Daniels, MSW LISW-SClinical Social Worker1083705271
  8. Cindy Daniels, C.D.C.AAddiction (Substance Use Disorder) Counselor1154743359
  9. Mikalynn Danison, COTA/LOccupational Therapy Assistant1225500606
  10. Rachel Dannenhauer, QMHS CMSCase Manager/Care Coordinator1497315212
  11. Johnna Darnall Bonde, DCChiropractor1497269088
  12. Mark Darnell, MDEmergency Medicine Physician1902891088
  13. Julie Daubenmire, LPNLicensed Practical Nurse1699220798
  14. Brian Davidson, PTPhysical Therapist1720039506
  15. John Davidson, P.C.Mental Health Counselor1992987416
  16. Ginger Davis, CNPNurse Practitioner1255720264
  17. Hunter DavisHomemaker1558224469
  18. Kessi DavisAddiction (Substance Use Disorder) Counselor1417780289
  19. Kylie DavisAddiction (Substance Use Disorder) Counselor1881424976
  20. Shannon Davis, LPNLicensed Practical Nurse1588215172
  21. Allison DawsonHomemaker1619894334
  22. Katherine Dean, RN, APRN, WHNP-BCWomen's Health Nurse Practitioner1023577699
  23. Maya Dearth, RNPsychiatric/Mental Health Registered Nurse1407733132
  24. Tara Decaro, QMHSBA, CMSBACommunity Health Worker1508514043
  25. Angelique DeckerHome Health Aide1154730455
  26. Chelsea DeckerPhysician Assistant1851902464
  27. Jon Decker, DDSGeneral Practice Dentistry1487703955
  28. Michelle DecosteEmergency Medicine Physician1083609978
  29. Penni Defazio, LPNLicensed Practical Nurse1467738435
  30. Francis Degenova, DOOrthopaedic Surgery of the Spine Physician1134114838
  31. Kilynn DeibleCase Manager/Care Coordinator1114632171
  32. Patrice DejesusCommunity Health Worker1427970342
  33. Nichole Deleon, SOCIAL WORK TRAINEESocial Worker1518744754
  34. Leslie Delong, LMTMassage Therapist1104606086
  35. Danielle Demarco, MS, RD, LDRegistered Dietitian1790052561
  36. Nicole Demastry Kolikohn, FNP-BCFamily Nurse Practitioner1114517828
  37. Jennifer DementRegistered Nurse1649906025
  38. James Depietro, DCOrthopedic Chiropractor1144217548
  39. Carissa DersamCase Manager/Care Coordinator1194588962
  40. Jenevieve DersamCase Manager/Care Coordinator1033962816
  41. James Detty, LPNLicensed Practical Nurse1407580830
  42. Jerry Detwiler, DDSGeneral Practice Dentistry1720177868
  43. Jon Detwiler, DDSDentist1114162484
  44. Prithvia Devadas, DOStudent in an Organized Health Care Education/Training Program1588308514
  45. Kristen Deye, LPCProfessional Counselor1023548153
  46. Andrea Dickerson, LPNLicensed Practical Nurse1366679813
  47. Nichole Dickerson, QMHS, CMSCommunity Health Worker1043949340
  48. Evan DiehlAddiction (Substance Use Disorder) Counselor1831897735
  49. Allison Dietz, MSW, LISWClinical Social Worker1578124699
  50. Jaime DildineHome Health Aide1477385185

The largest Ohio cities

  1. Columbus36,491
  2. Cincinnati31,362
  3. Cleveland30,748
  4. Toledo13,583
  5. Dayton12,431

All of Ohio →

How to read this directory

Lancaster, Ohio appears in the CMS National Plan and Provider Enumeration System with 1,601 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 Lancaster - 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 Lancaster 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 Lancaster is weighted toward Case Manager/Care Coordinator (143 clinicians, followed by Addiction (Substance Use Disorder) Counselor with 128 and Licensed Practical Nurse with 71). 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 Ohio's population, Lancaster reports roughly 13.6 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 Lancaster 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 Lancaster, OH?

There are 1,601 registered healthcare providers in Lancaster, OH, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Lancaster?

The most common specialties in Lancaster are Case Manager/Care Coordinator, Addiction (Substance Use Disorder) Counselor, Licensed Practical Nurse, Social Worker, Family Nurse Practitioner. Case Manager/Care Coordinator has the most providers with 143.

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.