NPPES file of Aug 9, 2026

Doctors and health care providers in Westerville, OH

3,300 individual NPPES records list a practice address in Westerville, 10th of 711 Ohio cities. The largest group is behavior technician: 314, 10% of the city's records, against 2% across Ohio. Page 15 of 66.

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

Westerville in Ohio

  • Rank in Ohio10th of 711 cities by records
  • Share of the state1% of Ohio's records
  • Specialties present25 or more taxonomy codes
  • Top three groups21.4% of all records
  • Behavior Technician rank6th of the 10 Ohio cities with the most

Compared with Ohio as a whole, Westerville has 4.7× the state's share of behavior analyst records and 0.32× its share of case manager/care coordinator records.

Providers in Westerville, alphabetically

  1. Jay DeanAddiction (Substance Use Disorder) Counselor1659043594
  2. Erin Decarlo, BAStudent in an Organized Health Care Education/Training Program1063679801
  3. Nina Deep, M.D.Internal Medicine Physician1154308369
  4. Todd DegenhartPhysical Therapist1730555327
  5. Alaina DeighanMental Health Counselor1053021147
  6. Jodi Deistler, PTPhysical Therapist1225007297
  7. Cynthia-Marie Dekuiper, CRNPAcute Care Nurse Practitioner1306892054
  8. Baneza Delacruz, BCABAAssistant Behavior Analyst1932022373
  9. Margaret Delaney, M.S., BCBABehavior Analyst1114356664
  10. Marissa DelboccioBehavior Technician1902598147
  11. Kristin Dell'Armo, PHD, BCBA/COBAClinical Child & Adolescent Psychologist1083261176
  12. Jess Demaria, MDDermatology Physician1154373009
  13. Christopher Demas, M.D.Family Medicine Physician1205940426
  14. Mary Dembski, PHARMDPharmacist1114553583
  15. Kelly DempseyPediatric Physical Therapist1578413068
  16. Kayli Dennis, ODOptometrist1457917023
  17. Ann DepauwRegistered Nurse1487189007
  18. Charles Depriest, P.C.Professional Counselor1659576817
  19. Lynn Desamours, BHIABehavior Technician1922630029
  20. Amy Detrow, PHARMDPharmacist1851432611
  21. Andrew DevlinProfessional Counselor1154019438
  22. Traci Devoe, MDPediatrics Physician1972879799
  23. Paul Devore, APRN-CNPNurse Practitioner1508408790
  24. Skyler Devore, RBTBehavior Technician1609589209
  25. Ashley Dexter, ATCAthletic Trainer1952838815
  26. Sarah DhanjiAthletic Trainer1770272874
  27. Praveena Dhawale, MDPediatrics Physician1356371173
  28. Michael Dial, MDInternal Medicine Physician1023503299
  29. Shelby DialsStudent in an Organized Health Care Education/Training Program1164969424
  30. Brittany Diamond, RBTBehavior Technician1639759673
  31. Matthew Dickson, M.D.Emergency Medicine Physician1629018031
  32. Chase Dieckhoner, B.S.Behavior Technician1679187405
  33. Andrew Diehl, PA-CPhysician Assistant1881784171
  34. Hailey Dienst, LMTMassage Therapist1932724432
  35. Michael DigenovaCase Manager/Care Coordinator1073886198
  36. Erin DigiacomoMassage Therapist1497504971
  37. Hannah DilleySocial Worker1053116277
  38. Kendra DillonPharmacist1497419824
  39. Lauren Dillon, OTOccupational Therapist1912566761
  40. Rosalie Dillon, DOFamily Medicine Physician1558998948
  41. Kristin Dimarco, BSStudent in an Organized Health Care Education/Training Program1033499389
  42. Gianni Dimichaelangelo, DDSDentist1114541943
  43. Santino Dimichaelangelo, DDSGeneral Practice Dentistry1417886698
  44. Kristen Dimitris, M.D.Family Medicine Physician1114158813
  45. David Dionisio, D.O.Family Medicine Physician1750589875
  46. Dayna Dionyssiou, OTDOccupational Therapist1366175119
  47. Donatella DiroccoSocial Worker1316812571
  48. Kamilah Dixon, MDObstetrics & Gynecology Physician1508119025
  49. Kevin Do, DPTPhysical Therapist1225413305
  50. Joseph Doherty, MA, LPC, CWCMental Health Counselor1639547813

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

Westerville, Ohio appears in the CMS National Plan and Provider Enumeration System with 3,300 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 Westerville - 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 Westerville 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 Westerville is weighted toward Behavior Technician (314 clinicians, followed by Student in an Organized Health Care Education/Training Program with 265 and Clinical Social Worker with 127). 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, Westerville reports roughly 28 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 Ohio's most common specialties, Addiction (Substance Use Disorder) Counselor is the most prominent one with no provider currently listing a Westerville practice address, a coverage gap Westerville patients typically fill by traveling to a larger nearby hub.

For Westerville 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 Westerville, OH?

There are 3,300 registered healthcare providers in Westerville, OH, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Westerville?

The most common specialties in Westerville are Behavior Technician, Student in an Organized Health Care Education/Training Program, Clinical Social Worker, Physical Therapist, Case Manager/Care Coordinator. Behavior Technician has the most providers with 314.

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.