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 15 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. Mario HainesworthProfessional Counselor1306458245
  2. Mario HainesworthBehavior Technician1598438590
  3. Roger Hakimian, M.D.Hematology & Oncology Physician1467487397
  4. Robert Halicky, M.ED., CCRP, CEPClinical Exercise Physiologist1760130132
  5. Elyse HallAddiction (Substance Use Disorder) Counselor1619794195
  6. Mary Hall, DNP, PMHNP-BC, FNP-CPsychiatric/Mental Health Nurse Practitioner1831505577
  7. Shekia HallCase Manager/Care Coordinator1720850639
  8. Steve HallDriver1760248389
  9. Matthew Halula, B.S.A.S., CEP, CPTClinical Exercise Physiologist1255089538
  10. Sybil HameedPersonal Care Attendant1124494075
  11. Jamie HamnerAddiction (Substance Use Disorder) Counselor1194404053
  12. Dina Hanna, M.D.Interventional Pain Medicine Physician1407922586
  13. Melissa Hanshaw, RNRegistered Nurse1699635904
  14. Celisa Hardesty, LISWClinical Social Worker1164807442
  15. Tonya Hardway, ED.S.School Psychologist1003234816
  16. Armada HardyHealth Service Psychologist1881110583
  17. Lauren Harkins, SLPSpeech-Language Pathologist1811627748
  18. Kali HarperCase Manager/Care Coordinator1235813593
  19. Sara HarrellAddiction (Substance Use Disorder) Counselor1316828148
  20. Arkeylla Harris, CRNACertified Registered Nurse Anesthetist1508188384
  21. Bernard Harris, MDAnesthesiology Physician1174511331
  22. Jessica Harris, PTAPhysical Therapy Assistant1215311865
  23. Katera Harris, BSN,RNHome Health Registered Nurse1235990839
  24. Maria HarrisSocial Worker1396547550
  25. Shawntai Harris, QMHSCase Manager/Care Coordinator1043031230
  26. Selina Harsch, LPNLicensed Practical Nurse1194505362
  27. Jessica Hart, PH.D.Psychologist1902093891
  28. Richard Hart, MDFamily Medicine Physician1225021025
  29. Kyle HartmanEmergency Medicine Physician1023436821
  30. Shawntel HarveyHomemaker1306557889
  31. Yasmeen Hashmi, MDFamily Medicine Physician1477524585
  32. Patricia Hatala, LSWSocial Worker1619946357
  33. Megan Hatch, LICDCAddiction (Substance Use Disorder) Counselor1689335614
  34. Sarah HathawayAddiction (Substance Use Disorder) Counselor1114736469
  35. Justin Haun, RNRegistered Nurse1407533029
  36. Karen Hausen, LPNLicensed Practical Nurse1275041279
  37. Cieara Hayes Underwood, LMTMassage Therapist1699556316
  38. Nicole Hazlett, BACase Manager/Care Coordinator1942702592
  39. Amanda Heberling, COTA/LOccupational Therapy Assistant1477070811
  40. Christopher Hebert, M.D.Internal Medicine Physician1669430047
  41. Erika HebrockHome Health Aide1598440703
  42. Erin Heckman, RNRegistered Nurse1780110080
  43. Yonna HeckrowHome Health Aide1801614805
  44. Mary Hedge, SPSpeech-Language Pathologist1629118039
  45. Kathryn Heffinger, LISWClinical Social Worker1831205038
  46. Nicholas Heinzer, PTPhysical Therapist1356357453
  47. Bert Heisser, DDSDentist1013081868
  48. John Helms, CDCA-1Addiction (Substance Use Disorder) Counselor1841702792
  49. Veronica Helms, RNRegistered Nurse1144792532
  50. Terence Heltzel, PH.D.Clinical Psychologist1871579615

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.