NPPES file of Aug 9, 2026

Doctors and health care providers in Ottawa, OH

211 individual NPPES records list a practice address in Ottawa, 198th of 711 Ohio cities. The largest group is physical therapist: 26, 12% of the city's records, against 2% across Ohio. Page 3 of 5.

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

The 8 largest groups in Ottawa

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Ottawa in Ohio

  • Rank in Ohio198th of 711 cities by records
  • Share of the state<0.1% of Ohio's records
  • Specialties present25 or more taxonomy codes
  • Top three groups28% of all records

Compared with Ohio as a whole, Ottawa has 7.9× the state's share of physical therapy assistant records and 0.57× its share of case manager/care coordinator records.

Providers in Ottawa, alphabetically

  1. Jennifer Maag, MDFamily Medicine Physician1689841900
  2. Jodi Maag, M.S., CCC-SLPSpeech-Language Pathologist1699221630
  3. Joyce MaagAttendant Care Provider1629623905
  4. Meghan Maag, OTR/LOccupational Therapist1073982682
  5. Shane Maag, O.D.Optometrist1609003763
  6. Peter MackePersonal Care Attendant1992500888
  7. Brooke MangasSchool Psychologist1043147572
  8. Cheryl Mansfield, LPNLicensed Practical Nurse1316126774
  9. Frankie McBeePersonal Care Attendant1558042689
  10. Julie McCann, MPTPhysical Therapist1063747293
  11. Shelby MengerinkCase Manager/Care Coordinator1326688151
  12. Lindsey MetzgerPhysical Therapist1629492384
  13. Troy Meyer, DCChiropractor1922887017
  14. Morgan MillerNurse's Aide1902519671
  15. Kristi Miller PowellCase Manager/Care Coordinator1235706938
  16. Ingo Montgomery, MS, BA, LICDC, LSWAddiction (Substance Use Disorder) Counselor1427211606
  17. Lena Moore, PTAPhysical Therapy Assistant1790637478
  18. Anthony MormanMassage Therapist1275038929
  19. Julie MormanHome Health Aide1154205300
  20. Brice Musser, O.D.Optometrist1033115936
  21. Trudy NeuRegistered Nurse1780197145
  22. Danielle Niese, RN, BSN, WCCLong-Term Care Clinical Nurse Specialist1497322119
  23. Elizabeth Niese, LSWSocial Worker1891459459
  24. Makenna Niese, DPTPhysical Therapist1346125200
  25. Nicole Olechowicz, DCChiropractor1154844785
  26. Lindsay Ormsby, MDPsychiatry Physician1326251893
  27. Kylie OttoPhysical Therapy Assistant1184575227
  28. Anna ParkinsPhysical Therapy Assistant1245161041
  29. April Patino, LPNLicensed Practical Nurse1851513816
  30. Andrea PhillipsPersonal Care Attendant1164115788
  31. Kristin Phillips, PT, DPTPhysical Therapist1801633458
  32. Augusta Quinn, PCCProfessional Counselor1972828317
  33. Destiny RamosPersonal Care Attendant1164275707
  34. Alexandra RatliffLicensed Practical Nurse1245169986
  35. Merrill Raye, D.C.Chiropractor1891774782
  36. Michael Raye, DCChiropractor1447238530
  37. Amanda Recker, M.S., CCC-SLPSpeech-Language Pathologist1427483635
  38. Kennedy Recker, AUDAudiologist1679326375
  39. Tracie Recker, OTR/LPediatric Occupational Therapist1043015761
  40. Stacy Reindel, MOT, OTR/LOccupational Therapist1972902229
  41. Lisa Reyna, PTPhysical Therapist1730194440
  42. Janice Ricker, RNLong-Term Care Clinical Nurse Specialist1376110098
  43. Kylee Ricker, PT, DPTPhysical Therapist1730801564
  44. Hannah Rickle, PT, DPTPhysical Therapist1548037054
  45. Courtney RiemanPhysical Therapist1336528090
  46. Eric Rieman, PHARMDPharmacist1104201375
  47. Megan Rieman, CASE MANAGERCase Manager/Care Coordinator1932895406
  48. Teresa Rohrs, O.D.Optometrist1437291945
  49. Amber Rosengarten, M.S. CCC SLPSpeech-Language Pathologist1215453626
  50. Jane Rosengarten, BC-HISHearing Instrument Specialist1922175629

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

Ottawa, Ohio appears in the CMS National Plan and Provider Enumeration System with 211 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 Ottawa - 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 Ottawa 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 Ottawa is weighted toward Physical Therapist (26 clinicians, followed by Speech-Language Pathologist with 18 and Physical Therapy Assistant with 15). 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, Ottawa reports roughly 1.8 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, Student in an Organized Health Care Education/Training Program is the most prominent one with no provider currently listing a Ottawa practice address, a coverage gap Ottawa patients typically fill by traveling to a larger nearby hub.

For Ottawa 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 Ottawa, OH?

There are 211 registered healthcare providers in Ottawa, OH, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Ottawa?

The most common specialties in Ottawa are Physical Therapist, Speech-Language Pathologist, Physical Therapy Assistant, Occupational Therapist, Case Manager/Care Coordinator. Physical Therapist has the most providers with 26.

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.