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 23 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. Madison LuckettAthletic Trainer1750189064
  2. Susan LucyHome Health Aide1063813988
  3. Jon Luster, CPRSPeer Specialist1174241731
  4. Shannon Luther, ACNPC-AGAcute Care Nurse Practitioner1205307261
  5. Daniel LydicAddiction (Substance Use Disorder) Counselor1144112525
  6. Joseph Lydon, M.D.Addiction Medicine (Psychiatry & Neurology) Physician1598766859
  7. Lyia LynchBehavior Technician1346956067
  8. Malissa Lynn, APRN.CRNACertified Registered Nurse Anesthetist1831652031
  9. Anastasia Macdougall, RNRegistered Nurse1295464014
  10. Dannielle MacduffNaturopath1316285497
  11. Karen Machak, CRNACertified Registered Nurse Anesthetist1710939111
  12. Holly Maggiano, MDNeurology Physician1104898493
  13. Michael Maggio, MSN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1417501412
  14. Mazen Mahjoub, MDSpecialist1679512081
  15. Phillip Maiden, M.D.Psychiatry Physician1063418168
  16. Leigh Majersky DottsPharmacist1659971885
  17. Nadeem Malik, MDAnatomic Pathology & Clinical Pathology Physician1306822275
  18. Monique MalmerNurse Practitioner1609279678
  19. Leanne Malone, LPNLicensed Practical Nurse1356626360
  20. Stephanie Mamrich, CDCAAddiction (Substance Use Disorder) Counselor1962196436
  21. Brittany ManciniAdult Health Nurse Practitioner1275985442
  22. Brandy Manes, LPNLicensed Practical Nurse1629406798
  23. Zulfikar Mangalji, MDInternal Medicine Physician1699742916
  24. Paula Mangiarelli, PTPhysical Therapist1366478604
  25. Robert MangiarelliPhysical Rehabilitation Occupational Therapist1811297484
  26. Robert Mangiarelli, DPTPhysical Therapist1568831519
  27. Sarah Mangiarelli, DPTPhysical Therapist1326350331
  28. Brittaney Mann, LPNLicensed Practical Nurse1598473241
  29. Harinoor Mann, M.D.Neurology Physician1306332002
  30. Sriram Mannava, MDDiagnostic Radiology Physician1134395858
  31. Heidi Manning, ARNPNurse Practitioner1619472404
  32. Jayne Mansfield, RNRegistered Nurse1154731115
  33. Shabnam Mansur, MDStudent in an Organized Health Care Education/Training Program1083465280
  34. Carl Manzo, MDGastroenterology Physician1841618204
  35. Ammie Maravelli, MDStudent in an Organized Health Care Education/Training Program1174554794
  36. Anthony Marcello, PHARMDPharmacist1437562055
  37. Leigh Marchio, RDN, LDRegistered Dietitian1205369592
  38. Kim Marciano, CDCAAddiction (Substance Use Disorder) Counselor1518450964
  39. Reetta Marciano, M.D.Psychiatry Physician1588989446
  40. Laura Marciella, MA, ATR-PArt Therapist1982449138
  41. Jamie Marich, PH.D., LPCC-S, LICDCMental Health Counselor1326269556
  42. Brianna MarinPhysician Assistant1255917589
  43. Charles Marin, LPCCProfessional Counselor1134811797
  44. Lori Marinko, LPCMental Health Counselor1285915777
  45. Mary MariottiAdult Psychiatric/Mental Health Registered Nurse1992434443
  46. Rita Markakis, R.PH.Pharmacist1003191156
  47. Joann Marlier, LPCC, LSWSocial Worker1487705570
  48. Alexander Marosy, MSW, LISWClinical Social Worker1285157610
  49. Carrie Marrara, R.N.Inpatient Obstetric Registered Nurse1457554040
  50. Carthell Marrow, CDCA, QMHSCase Manager/Care Coordinator1942804927

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.