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 79 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. Kyra Cass, MDFamily Medicine Physician1932198231
  2. Cheryl CassadyOccupational Therapy Assistant1720103260
  3. Katherine Cassani, PAPhysician Assistant1144038506
  4. Nicole Cassell, ACNPAcute Care Nurse Practitioner1609104603
  5. Allison Cassidy, PHD, PHARMDPharmacist1184914194
  6. Douglas Cassidy, MDSurgery Physician1245619154
  7. Justin CassidyClinical Social Worker1134900624
  8. Karry Cassidy, RDH BSDental Hygienist1386620623
  9. Kristin Cassidy, MS, OTR/LPediatric Occupational Therapist1396044186
  10. Nicole Cassidy, PSYDClinical Psychologist1689981334
  11. Noah Cassidy, MDStudent in an Organized Health Care Education/Training Program1366202400
  12. Raees Cassim, MDUrology Physician1073491973
  13. Shiraz Cassim, MDStudent in an Organized Health Care Education/Training Program1568149193
  14. Andrea Cassimatis, CPNPPediatrics Physician1518710359
  15. Gwendolyn CassonHome Health Aide1265206486
  16. Carmen Castellano, O.D.Optometrist1710015748
  17. Joseph Castellano, ODOptometrist1427344423
  18. Nicholas Castellano, ODOptometrist1669821062
  19. Faith Caster, APRN PMHNP-BC CNEPsychiatric/Mental Health Nurse Practitioner1407310907
  20. Roque Castillo, M.D.Internal Medicine Physician1417971144
  21. Yelitza Castillo AstorgaStudent in an Organized Health Care Education/Training Program1689436008
  22. Isabela Castillo-TrevinoMassage Therapist1407517667
  23. Anthony Castro, PSYDPsychologist1881630606
  24. Diane Castro, MA, LPC, LCSWProfessional Counselor1386835858
  25. Eleanor Castro, MDAnatomic Pathology & Clinical Pathology Physician1568997831
  26. Savannah Castro, ACNPGerontology Nurse Practitioner1316518236
  27. Yaritzia Castro-GarciaBehavior Analyst1306467246
  28. Nevada Castro-MillerMental Health Counselor1376139881
  29. April Castuciano, LCSWClinical Social Worker1205310513
  30. Kelly CatanzaroRegistered Nurse1497107239
  31. Paul Catanzaro, MDInternal Medicine Physician1386653731
  32. Rosemary Catanzaro, RD, MS, CDE, LDRegistered Dietitian1194883231
  33. Carolyn Catchings, MA, CRC, PLPCCounselor1558799320
  34. Kathryn Cathell, MA, PLPCProfessional Counselor1386009728
  35. David Catherall, MDStudent in an Organized Health Care Education/Training Program1508754565
  36. Bethany Catlett, ACNPAcute Care Nurse Practitioner1437459666
  37. Gina Cato, MA, CCC-SLPSpeech-Language Pathologist1407938962
  38. Sean Catron, DPTPhysical Therapist1588357776
  39. Jacquelyn Cattage, PH.D.Clinical Psychologist1679827554
  40. Angela Cattani, MDInternal Medicine Physician1578268512
  41. Matthew Cauble, MAMental Health Counselor1164949467
  42. Karen Caudill, MDPediatric Radiology Physician1699728667
  43. Jefferies Caul, PH.D.Clinical Psychologist1427155340
  44. Kelly Caul, LCSWClinical Social Worker1578725453
  45. Clayton Caulkins, MDEmergency Medicine Physician1750969085
  46. Tracyne Caumartin, MSW,LCSWClinical Social Worker1285604710
  47. Martin CauppHealth Educator1306309208
  48. Michael CavalierEmergency Registered Nurse1023556156
  49. Rebekah CavalierBehavior Technician1649961152
  50. Sean Cavanaugh, MDEmergency Medicine Physician1003179151

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.