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 309 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. Jonna Mason, LCSWClinical Social Worker1851381149
  2. Mary Mason, MDGeneral Practice Physician1093844540
  3. Shontavia Mason, LPCProfessional Counselor1245013382
  4. Susan Mason, PCNSPediatric Clinical Nurse Specialist1528413119
  5. Manar Masood, AAAnesthesiologist Assistant1598596736
  6. Muhammad Masood, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1306166327
  7. Katherine Massa, MDMaternal & Fetal Medicine Physician1205272341
  8. Sean Massa, MDOtolaryngology Physician1336586809
  9. Katina MassadStudent in an Organized Health Care Education/Training Program1790584472
  10. Leslie Massad, MDGynecologic Oncology Physician1366423360
  11. Reyanna Massaquoi, MDNeurology Physician1417330531
  12. Emily Massaro, P.A.Surgical Physician Assistant1770765950
  13. Aamer Massay, PA-CPhysician Assistant1184973075
  14. Kimberly Massey, MDPediatric Emergency Medicine (Pediatrics) Physician1659683803
  15. Maria Massey, PLPCProfessional Counselor1265078158
  16. Robyn Massey, CPNPPediatric Nurse Practitioner1992350565
  17. Brianna Massie, LCSWClinical Social Worker1114391174
  18. Charles Massie, LPC, LCPCProfessional Counselor1013369628
  19. Robert Massie, DDSDentist1619961612
  20. Jennifer MassiminoPediatric Physical Therapist1649840711
  21. Kate Massman, RDPediatric Nutrition Registered Dietitian1255261525
  22. Carol Massmann, PNPNurse Practitioner1598782013
  23. Roxanna Masso MaldonadoStudent in an Organized Health Care Education/Training Program1952243594
  24. Sarah Masson, LMSWClinical Social Worker1578383444
  25. Jennifer Massoni, ANPNurse Practitioner1629092408
  26. Thomas Massutti, MDDiagnostic Radiology Physician1114587904
  27. Anna MastersSpeech-Language Pathologist1962122366
  28. Chelsea Masters, FNP-CFamily Nurse Practitioner1639544737
  29. Jenna Masters, MAProfessional Counselor1003587635
  30. Laura Masters, P.T.Physical Therapist1396059135
  31. Julie Mastnak, PH.D.Clinical Psychologist1962685826
  32. Eric Mastrolonardo, MDOtolaryngology Physician1376122101
  33. Abdullah Masud, M.D.Hospitalist Physician1053845321
  34. Viviana Mata, DCChiropractor1043102403
  35. Andres Mata Hidalgo, MDHospitalist Physician1033795802
  36. Christine MatayaSpeech-Language Pathologist1437712478
  37. Kirby MatejaStudent in an Organized Health Care Education/Training Program1871295444
  38. Lukas Matern, MDCritical Care Medicine (Anesthesiology) Physician1952894149
  39. Nevin MathaiDentist1558921858
  40. Susan Matheis, LPCCounselor1295271708
  41. Laura Matheny, OTRLOccupational Therapist1235324807
  42. Kavitha Mathew, MDCritical Care Medicine (Anesthesiology) Physician1750563755
  43. Moye Mathew, DOInternal Medicine Physician1063932986
  44. Shakila Mathew, DOHospitalist Physician1144458126
  45. Sonia MathewStudent in an Organized Health Care Education/Training Program1366957391
  46. Stanley MathewStudent in an Organized Health Care Education/Training Program1730979816
  47. Suresh Mathew, MDNephrology Physician1922070614
  48. Yamuna Mathew, DDSGeneral Practice Dentistry1427102300
  49. Jennifer Mathews, PH.D.Clinical Neuropsychologist1851621296
  50. Katherine Mathews, MDObstetrics Physician1891860383

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.