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 305 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. Michael Marcum, LPCMental Health Counselor1790351138
  2. Joseph Marcus, MDAnatomic Pathology & Clinical Pathology Physician1669447496
  3. Michael Marcus, MDUrology Physician1588622773
  4. Michele Marcus, NPFamily Nurse Practitioner1932160637
  5. Deangelo MardisClinical Social Worker1104687219
  6. Suneetha Mare, PHD, RPHPharmacist1457007049
  7. Robert Mareing, AUDAudiologist1437396892
  8. Alexander Marelich, MDEmergency Medicine Physician1962030874
  9. Joan MarentettePhysical Therapist1881727758
  10. Cynthia Marfisi, CT(ASCP)Cytotechnology Specialist/Technologist1821493867
  11. Jakia Marfo PayneHome Health Aide1962200683
  12. Jacob Marganski, M.D.Emergency Medicine Physician1245679158
  13. Stephen MargelosStudent in an Organized Health Care Education/Training Program1558223305
  14. Julie Margenthaler, MDSurgical Oncology Physician1750307054
  15. Mihnea Marghitu, MDStudent in an Organized Health Care Education/Training Program1952235442
  16. Ronald Margolis, PHDCognitive & Behavioral Psychologist1588725717
  17. Sarah Margolis, M.D.Specialist1316029085
  18. Stephanie Margolis, RDRegistered Dietitian1851727291
  19. Todd Margolis, MDCornea and External Diseases Specialist Physician1982719316
  20. Stacy Marian, LPCProfessional Counselor1386005445
  21. Faviola Marin, AGPCNPAdult Health Nurse Practitioner1598136350
  22. Jessica Marin, PHARM DPharmacist1255615126
  23. Julio Marin Concha, MDDiagnostic Radiology Physician1962083436
  24. Kayla Marinelli, MOT, OTR/LPediatric Occupational Therapist1629700059
  25. Babu Sriram Maringanti, M.D.Internal Medicine Physician1245675222
  26. Anthony Marino, D.D.S.Dentist1477597888
  27. Christina Marino, PTPhysical Therapist1548673528
  28. John Marino, M.D.Internal Medicine Physician1922112523
  29. Mark MarinoStudent in an Organized Health Care Education/Training Program1417740945
  30. Michelle Marino, M.D.Pediatric Anesthesiology Physician1346466091
  31. Valerie Marino, SLPSpeech-Language Pathologist1497891535
  32. Vanessa Marino, MDPediatrics Physician1700622495
  33. Vincent Marino, M.S.W., M.A.Clinical Social Worker1194924548
  34. Rose MarinucciCase Manager/Care Coordinator1225896574
  35. Keyuante MarionSpecialist1750739611
  36. Leslie Marion-LoweRegistered Nurse First Assistant1366807828
  37. Tanya Mark, LPCMental Health Counselor1548561046
  38. Michael Markee, PT, ATCPhysical Therapist1144321647
  39. Robert Markenson, M.D.Orthopaedic Surgery Physician1104870096
  40. Elise Marker, MDStudent in an Organized Health Care Education/Training Program1568165181
  41. Katherine MarkesAnesthesiologist Assistant1619851334
  42. Regina Market, LPNLicensed Practical Nurse1750601217
  43. Joseph Markey, M.D.Internal Medicine Physician1174910590
  44. Janet Markham, BSN, RN-BCAdult Psychiatric/Mental Health Registered Nurse1508175977
  45. Brandelynn Markley, PNPPediatric Nurse Practitioner1245601244
  46. Nathan MarkleyCase Manager/Care Coordinator1760773766
  47. Gary Marklin, M.D.Pulmonary Disease Physician1396733416
  48. Elizabeth Marko, BCBABehavior Analyst1356069728
  49. Christopher Markosian, MD, PHDStudent in an Organized Health Care Education/Training Program1447183686
  50. Hannah Markova, MDHospitalist Physician1831767029

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.