NPPES file of Aug 9, 2026

Doctors and health care providers in Saint Louis, MO

27,605 individual NPPES records list a practice address in Saint Louis, 1st of 317 Missouri cities. The largest group is clinical social worker: 1,474, 5% of the city's records, against 5% across Missouri. Page 360 of 553.

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

The 8 largest groups in Saint Louis

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

Saint Louis in Missouri

  • Rank in Missouri1st of 317 cities by records
  • Share of the state24.8% of Missouri's records
  • Specialties present25 or more taxonomy codes
  • Top three groups14.1% of all records
  • Clinical Social Worker rank1st of the 10 Missouri cities with the most

Compared with Missouri as a whole, Saint Louis has 1.9× the state's share of diagnostic radiology physician records and 0.55× its share of family nurse practitioner records.

Providers in Saint Louis, alphabetically

  1. Christian Nwankwo, MDNephrology Physician1679772198
  2. Peter Nwankwo, MDGeneral Practice Physician1114601010
  3. Ugonna Nwankwo, MDAdult Congenital Heart Disease Physician1356661433
  4. Margaret Nwaobasi, RN MSNRegistered Nurse1043212921
  5. Ijeoma Nwelue, M.D.Hospitalist Physician1689823395
  6. Eberechi Nwogu-Onyemkpa, MDHospice and Palliative Medicine (Internal Medicine) Physician1487090932
  7. Munachi Nwosu, WHNPNurse Practitioner1871124263
  8. Abigail Nyanzi, RDRegistered Dietitian1811761828
  9. Muhammad Nyazee, MDGastroenterology Physician1952494932
  10. Sara Nyberg, MMS PA-CPhysician Assistant1962840165
  11. Karen Nygaard, CCC-SLPSpeech-Language Pathologist1356865729
  12. Sydney Nykiel-Bailey, DOPediatric Anesthesiology Physician1790705382
  13. Talisha Nyman, FNPPediatric Nurse Practitioner1821537820
  14. Saydee Nymeyer, MDFamily Medicine Physician1396597381
  15. Amanda Nystrom, NP-CNurse Practitioner1528582939
  16. Sean O'BannonPharmacist1366922932
  17. Robert O'Bert, MDOtolaryngology Physician1891880225
  18. Kyle O'Blanc, MDDiagnostic Radiology Physician1013116458
  19. Christopher O'Boynick, MDOrthopaedic Surgery Physician1356504252
  20. Bridget O'Brien, OTR/LOccupational Therapist1053416792
  21. Daniel O'BrienAnesthesiologist Assistant1659146082
  22. Edward O'Brien, M.D.Body Imaging Physician1174527584
  23. Emily O'Brien, ODOptometrist1487214961
  24. Frank O'Brien, MDNephrology Physician1144774266
  25. Jillian O'Brien, LPCMental Health Counselor1083276919
  26. Katherine O'Brien, MDHospice and Palliative Medicine (Internal Medicine) Physician1033452479
  27. Kathryn O'Brien, MAED, LCSW, PHDClinical Social Worker1265734727
  28. Marisa O'Brien, ODOptometrist1124332234
  29. Mary O'Brien, L.P.C.Professional Counselor1194874909
  30. Nora O'Brien, ANPNurse Practitioner1841613205
  31. Richard O'Brien, D.D.S.Prosthodontics1366414575
  32. Kevin O'Bryan, MDHospitalist Physician1972817807
  33. Lindsey O'Bryant, AGNP-CNurse Practitioner1831591403
  34. Michael O'Bryant, DODiagnostic Radiology Physician1720548746
  35. Bliss O'Bryhim, MDRetina Specialist (Ophthalmology) Physician1427439298
  36. Allyn O'Byrne, RPHPharmacist1992767685
  37. Emily O'Chiu, RDRegistered Dietitian1902171051
  38. Christopher O'Connell, M.D.Psychiatry Physician1255699401
  39. Jennifer O'Connell, SLPSpeech-Language Pathologist1083750442
  40. Keara O'Connell, MDDiagnostic Radiology Physician1093203937
  41. Srijana O'Connell, M.D.Child & Adolescent Psychiatry Physician1598043648
  42. Julia O'Conner, PT, DPTPhysical Therapist1699360677
  43. Kyra O'Conner, BCBABehavior Analyst1255294393
  44. Amanda O'Connor, CPNP-PCPediatric Nurse Practitioner1063899441
  45. Brendan O'Connor, MDPsychiatry Physician1114231925
  46. Elizabeth O'Connor, ANP, CDEAdult Health Nurse Practitioner1356653190
  47. Laura O'Connor, P.T.Physical Therapist1750440889
  48. Mena O'Connor, MSW, LCSWClinical Social Worker1073737896
  49. Sarah O'Connor, PTAPhysical Therapy Assistant1215702550
  50. Shawn O'Connor, PH.D.Clinical Psychologist1245564426

The largest Missouri cities

  1. Kansas City13,759
  2. Springfield6,403
  3. Columbia6,004
  4. Joplin2,443
  5. Chesterfield2,132

All of Missouri →

How to read this directory

Saint Louis, Missouri appears in the CMS National Plan and Provider Enumeration System with 27,605 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 Saint Louis - 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 Saint Louis 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 Saint Louis is weighted toward Clinical Social Worker (1,474 clinicians, followed by Student in an Organized Health Care Education/Training Program with 1,338 and Speech-Language Pathologist with 1,083). 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, Saint Louis reports roughly 445.5 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 Saint Louis practice address, a coverage gap Saint Louis patients typically fill by traveling to a larger nearby hub.

For Saint Louis 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 Saint Louis, MO?

There are 27,605 registered healthcare providers in Saint Louis, MO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Saint Louis?

The most common specialties in Saint Louis are Clinical Social Worker, Student in an Organized Health Care Education/Training Program, Speech-Language Pathologist, Pharmacist, Professional Counselor. Clinical Social Worker has the most providers with 1,474.

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.