NPPES file of Aug 9, 2026

Doctors and health care providers in Warren, OH

2,090 individual NPPES records list a practice address in Warren, 20th of 711 Ohio cities. The largest group is licensed practical nurse: 146, 7% of the city's records, against 4% across Ohio. Page 28 of 42.

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

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Warren in Ohio

  • Rank in Ohio20th of 711 cities by records
  • Share of the state0.6% of Ohio's records
  • Specialties present25 or more taxonomy codes
  • Top three groups20.6% of all records

Compared with Ohio as a whole, Warren has 2.9× the state's share of peer specialist records and 0.51× its share of student in an organized health care education/training program records.

Providers in Warren, alphabetically

  1. Jenna Nelson, MSW, LISWClinical Social Worker1417382573
  2. Kashea NelsonHome Health Aide1326661216
  3. Stella NelsonPersonal Care Attendant1447030143
  4. Dustin Nesheim, D.O.Emergency Medicine Physician1427403435
  5. Thomas Neuman, M.D.Otolaryngology Physician1063413961
  6. Madeline New, AUDAudiologist1992323109
  7. Rhonda Newell-Horton, RPHPharmacist1821340878
  8. Nigel Newman, M.D.Specialist1568464360
  9. Barry NewsomeAddiction (Substance Use Disorder) Counselor1417687989
  10. Harvey Nguyen, DOStudent in an Organized Health Care Education/Training Program1770342305
  11. Thinh NguyenPharmacist1962355909
  12. Autumn NicholsPersonal Care Attendant1912712217
  13. James Nichols, DOFamily Medicine Physician1760416200
  14. Molly NielsenCounselor1336979434
  15. Lia NiforosMental Health Counselor1457915571
  16. Lokesh Ningegowda, MDPain Medicine (Anesthesiology) Physician1881723906
  17. Bette NisbettSocial Worker1710273941
  18. Kristin Nisbett, LPCProfessional Counselor1700320447
  19. Gordon Noakes, DDSGeneral Practice Dentistry1194808741
  20. Jose NogalesCase Manager/Care Coordinator1972281251
  21. Rebecca NormanCase Manager/Care Coordinator1639804198
  22. Sharon Norman, LSW, MSWSocial Worker1326528209
  23. Caitlin Novicky, CDCA-PRE, QMHSAddiction (Substance Use Disorder) Counselor1336027697
  24. Timothy Novicky, DCChiropractor1508166844
  25. Deanna Nussle, RNAmbulatory Care Registered Nurse1982854188
  26. Mary Nyers, CTMental Health Counselor1114804267
  27. Maria O'BrienRegistered Nurse1952053639
  28. Marcus O'HaraCase Manager/Care Coordinator1386491231
  29. Stephanie O'Kresik Jewette, DOPediatrics Physician1235831801
  30. Linda O'Neill, O.T.Occupational Therapist1184627713
  31. Elizabeth Oaks, LISW-S MSWClinical Social Worker1972030278
  32. Fabio Ochoa, M.D.Rheumatology Physician1881673523
  33. William OdakaPharmacist1144749698
  34. Tylor OdellPeer Specialist1750976957
  35. Brittnay Ogletree, CNANurse's Aide1265320907
  36. Raquel Ogletree, RNHome Health Registered Nurse1598468118
  37. Angela OlivoPeer Specialist1174157507
  38. Linda OlmsteadAnatomic Pathology & Clinical Pathology Physician1073584959
  39. Su-Qin Olmstead, C.D.C.A.Addiction (Substance Use Disorder) Counselor1326348517
  40. Steven Olsen, D.O.Emergency Medicine Physician1891137931
  41. Taylor OlsonBehavior Technician1073391769
  42. Joseph Ombrello, M.ED. LCPC, LIACProfessional Counselor1831772813
  43. Dana OmerzoWomen's Health Nurse Practitioner1467375451
  44. Carly Ondash, LPCMental Health Counselor1437827268
  45. Theodore Opalka, D.D.S., M.S.Orthodontics and Dentofacial Orthopedics Dentistry1124238753
  46. Megan OsborneHomemaker1528931342
  47. Brenda OsburnCommunity Health Worker1417345265
  48. Stephanie Ostetrico, CNPFamily Nurse Practitioner1306461561
  49. Kenneth Overholt, RPHPharmacist1013122316
  50. Ashley Owen, LSWSocial Worker1629844659

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

Warren, Ohio appears in the CMS National Plan and Provider Enumeration System with 2,090 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 Warren - 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 Warren 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 Warren is weighted toward Licensed Practical Nurse (146 clinicians, followed by Addiction (Substance Use Disorder) Counselor with 145 and Case Manager/Care Coordinator with 139). 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, Warren reports roughly 17.7 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 Warren 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 Warren, OH?

There are 2,090 registered healthcare providers in Warren, OH, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Warren?

The most common specialties in Warren are Licensed Practical Nurse, Addiction (Substance Use Disorder) Counselor, Case Manager/Care Coordinator, Home Health Aide, Social Worker. Licensed Practical Nurse has the most providers with 146.

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.