NPPES file of Aug 9, 2026

Doctors and health care providers in O Fallon, MO

1,225 individual NPPES records list a practice address in O Fallon, 16th of 317 Missouri cities. The largest group is physical therapist: 131, 11% of the city's records, against 4% across Missouri. Page 22 of 25.

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).

The 8 largest groups in O Fallon

  1. Physical Therapist131
  2. Speech-Language Pathologist119
  3. Pharmacist84
  4. Professional Counselor81
  5. Chiropractor74
  6. Family Nurse Practitioner44
  7. Clinical Social Worker40
  8. Family Medicine Physician37

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

O Fallon in Missouri

  • Rank in Missouri16th of 317 cities by records
  • Share of the state1.1% of Missouri's records
  • Specialties present25 or more taxonomy codes
  • Top three groups27.3% of all records
  • Physical Therapist rank3rd of the 10 Missouri cities with the most

Compared with Missouri as a whole, O Fallon has 6.3× the state's share of orthodontics and dentofacial orthopedics dentistry records and 0.59× its share of internal medicine physician records.

Providers in O Fallon, alphabetically

  1. Stefanie Stuckstede, BCBABehavior Analyst1659060473
  2. Jina Stuecken, PLPCMental Health Counselor1790298198
  3. Anna Stumpf, L.P.C.Professional Counselor1568779262
  4. Jessica Stumpf, DPTPhysical Therapist1851969430
  5. Margaret Stupakewicz, D.C.Chiropractor1144738022
  6. Kathryn SucherSpeech-Language Pathologist1689702912
  7. Ashley Sullivan, PHARMDPharmacist1700170586
  8. Rose Sullivan, CRNACertified Registered Nurse Anesthetist1225425358
  9. Jennifer Summers, CCC-SLPSpeech-Language Pathologist1932628294
  10. Kathryn Summers, P.T.Physical Therapist1013020668
  11. Mallory SummersSpeech-Language Pathologist1255059317
  12. Rylee SundquistSpeech-Language Pathologist1972203370
  13. David Sutton, RNFARegistered Nurse First Assistant1871860262
  14. Michelle SwinglerSpeech-Language Pathologist1619492717
  15. Robin Switzer, ED.D. LPCProfessional Counselor1154593895
  16. Peter Szatkowski, MDAnesthesiology Physician1598326381
  17. Jerry Tabak, LCSWClinical Social Worker1114276342
  18. Luke Taccola, PT, DPTPhysical Therapist1780256404
  19. Melody Tamakloe, EDDProfessional Counselor1205608510
  20. Christina Tapella, MS, CCC-SLPSpeech-Language Pathologist1457831877
  21. Madison Tapia, DDSGeneral Practice Dentistry1528953486
  22. Rebecca Taylor, MSW, LCSWClinical Social Worker1114276250
  23. Stephanie TaylorSpeech-Language Pathologist1750619540
  24. Trisha Taylor, MOT, OTR LOccupational Therapist1871634873
  25. Jocelyn Teagarden, PHARM.DPharmacist1972114783
  26. Stephanie Tegtmeier, OTR LOccupational Therapist1790815603
  27. Matthew Telmer, FNPFamily Nurse Practitioner1760954952
  28. Colleen Temaj PerezBehavior Technician1851221410
  29. Jane Tennis, RPH, MBAPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1104176726
  30. Heather TerranovaStudent in an Organized Health Care Education/Training Program1053253708
  31. Brie Terrell, PAMedical Physician Assistant1538326921
  32. Jennifer Testerman, NPNurse Practitioner1548205008
  33. Melissa Tevlin, PHARMDPharmacist1942581830
  34. Cyrus Teymouri, D.D.SDentist1336598549
  35. Aditya ThakerPharmacist1598157810
  36. Dipali Thakker, DMDGeneral Practice Dentistry1295828382
  37. David Thomas, PTPhysical Therapist1508171000
  38. Laura Thomas, AGPCNP-BCAdult Health Nurse Practitioner1699135434
  39. Margaret ThompsonAthletic Trainer1922966720
  40. Kyna ThorbergOccupational Therapist1265813505
  41. Ashton Thornton, RNRegistered Nurse1740126531
  42. Donald ThorsenOccupational Therapist1770930463
  43. Danielle ThrallCounselor1942037304
  44. Stephen Thro, PTPhysical Therapist1245284298
  45. Kara Thurston, MOT R/LOccupational Therapist1447517602
  46. Sophia TiefenthalerRegistered Nurse1720935901
  47. Alyssa Tirone, RD, LDNRegistered Dietitian1144021080
  48. Elizabeth Tolmich-Searle, DPTPhysical Therapist1265169015
  49. Scott Tomasino, O.D.Optometrist1124024906
  50. Emilia Tracy, MA, BCBA, LBABehavior Analyst1790269405

The largest Missouri cities

  1. Saint Louis27,605
  2. Kansas City13,759
  3. Springfield6,403
  4. Columbia6,004
  5. Joplin2,443

All of Missouri →

How to read this directory

O Fallon, Missouri appears in the CMS National Plan and Provider Enumeration System with 1,225 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 O Fallon - 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 O Fallon 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 O Fallon is weighted toward Physical Therapist (131 clinicians, followed by Speech-Language Pathologist with 119 and Pharmacist with 84). 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 Missouri's population, O Fallon reports roughly 19.8 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 Missouri's most common specialties, Behavior Technician is the most prominent one with no provider currently listing a O Fallon practice address, a coverage gap O Fallon patients typically fill by traveling to a larger nearby hub.

For O Fallon 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 O Fallon, MO?

There are 1,225 registered healthcare providers in O Fallon, MO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in O Fallon?

The most common specialties in O Fallon are Physical Therapist, Speech-Language Pathologist, Pharmacist, Professional Counselor, Chiropractor. Physical Therapist has the most providers with 131.

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.