NPPES file of Aug 9, 2026

Doctors and health care providers in Ottawa, IL

334 individual NPPES records list a practice address in Ottawa, 129th of 541 Illinois cities. The largest group is clinical social worker: 31, 9% of the city's records, against 6% across Illinois. Page 4 of 7.

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

Ottawa in Illinois

  • Rank in Illinois129th of 541 cities by records
  • Share of the state0.1% of Illinois's records
  • Specialties present25 or more taxonomy codes
  • Top three groups22.8% of all records

Compared with Illinois as a whole, Ottawa has 2.9× the state's share of physical therapy assistant records.

Providers in Ottawa, alphabetically

  1. Steven Knoderer, PHARMDPharmacist1760768725
  2. Elizebeth KnopDevelopmental Therapist1982482154
  3. Amy Koehler, MS-CCC-AAudiologist1962744581
  4. Ushasri KogantiFamily Medicine Physician1992917009
  5. Mallory Komater, DCChiropractor1124966486
  6. Donna Krenz, DTDevelopmental Therapist1700907201
  7. Karen Krolak, LCSWClinical Social Worker1588979785
  8. Laura Kula, L.C.S.W.Clinical Social Worker1396813010
  9. Sheera Lall, DOEmergency Medicine Physician1669421244
  10. Lori Lane, M.S. CCC-SLP/LSpeech-Language Pathologist1649784604
  11. Anne Lauterjung, MNTRegistered Dietitian1881614857
  12. Brianna Legner, M.A. CCC-SLPSpeech-Language Pathologist1578450789
  13. Heather Lehr, DPTGeriatric Physical Therapist1437908407
  14. Valerie Leonard, RDNRegistered Dietitian1891475075
  15. Lindsay LeslieDevelopmental Therapist1861648479
  16. Mary Liddle, LCSWClinical Social Worker1649327974
  17. Krista Lieser, OTOccupational Therapist1083937940
  18. Chenglu Liu, M.D.Surgery Physician1437334208
  19. Emily Long, APNNurse Practitioner1356933790
  20. Carrie Lopez, PAPhysician Assistant1336215938
  21. Terry Love, D.O.Family Medicine Physician1124034459
  22. Cheryl Lucas McCoy, APRN, CNPFamily Nurse Practitioner1811643315
  23. Teresa Macdavitt, LCPCProfessional Counselor1760138242
  24. Lauren Madon, MSWCounselor1265050074
  25. Robert Maguire, MDInternal Medicine Physician1174571673
  26. Matthew Makeever, MA, LPC, NCCProfessional Counselor1255120366
  27. Stephanie MakosPharmacist1861097859
  28. Richard Mangold, ED.D.Professional Counselor1417060492
  29. David Manigold, MDInternal Medicine Physician1346299641
  30. Jessica Manijak, DPTPhysical Therapist1386180347
  31. Alejandro Marchini, M.D.Pediatrics Physician1740326719
  32. Jordan Marganski, MDEmergency Medicine Physician1861138232
  33. Katie Marshall, APRN, CNMAdvanced Practice Midwife1508607789
  34. Austin Martin, MDFamily Medicine Physician1730560822
  35. Brenda Mason, LCPCProfessional Counselor1932386802
  36. Laura Mason, MPTPhysical Therapist1992059091
  37. Kelissa Mateika, COTAOccupational Therapy Assistant1477020238
  38. Sarah MathieuPharmacist1528604642
  39. Robert Maziarka, PHARMDPharmacist1477838233
  40. Dawn McCollom, LCSWClinical Social Worker1841454766
  41. John McLachlan, RPHPharmacist1669426318
  42. Collin McLean, PA-CPhysician Assistant1952006934
  43. Meghan McNamaraInterpreter1154557098
  44. Leo Meagher, MA PSYCHOLOGYProfessional Counselor1427204676
  45. Addis MekonnenHospitalist Physician1457001562
  46. Kelsi Mendez, PMHNPPsychiatric/Mental Health Nurse Practitioner1962275719
  47. Vinita Menon, PH.D.Clinical Psychologist1750644688
  48. Andrea Meyer, MASpeech-Language Pathologist1407314685
  49. Marianne Mikat Stevens, MDPediatric Anesthesiology Physician1598735904
  50. Daniel Miller, DCChiropractor1003880394

The largest Illinois cities

  1. Chicago63,379
  2. Springfield4,997
  3. Naperville4,634
  4. Peoria4,621
  5. Evanston4,013

All of Illinois →

How to read this directory

Ottawa, Illinois appears in the CMS National Plan and Provider Enumeration System with 334 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 Clinical Social Worker (31 clinicians, followed by Physical Therapist with 25 and Professional Counselor with 20). 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 Illinois's population, Ottawa reports roughly 2.7 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.

Of Illinois's most common specialties, Behavior Technician 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, IL?

There are 334 registered healthcare providers in Ottawa, IL, 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 Clinical Social Worker, Physical Therapist, Professional Counselor, Speech-Language Pathologist, Pharmacist. Clinical Social Worker has the most providers with 31.

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.