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 306 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. Tatjana MarkovicInterpreter1255279832
  2. Stephanie Markovina, MDRadiation Oncology Physician1336464536
  3. David Markowitz, M.ED, LPCMental Health Counselor1225046493
  4. Scott Markowitz, MDPediatric Anesthesiology Physician1801901186
  5. Alexander MarksCounselor1144748914
  6. Caitlin Marks, MDPlastic Surgery Physician1932778099
  7. Erica Marks, MSW, LMSWClinical Social Worker1174021539
  8. James Marks, MDRadiation Oncology Physician1033237003
  9. Laura Marks, MDInfectious Disease Physician1164803334
  10. Lauren Marks, MDPsychiatry Physician1790169126
  11. Linda Marks, ODOptometrist1770699498
  12. Roy Marks, M.A., L.C.S.W.Psychologist1154365955
  13. Jennifer Marks-Foster, PSYDClinical Psychologist1225289721
  14. Christine Markus, MPT, COMT, DMTPhysical Therapist1861724932
  15. Tyler Marler, DOFamily Medicine Physician1255992905
  16. Kathryn Marlow, MDPhysical Medicine & Rehabilitation Physician1144664913
  17. Katie Marlow, WHNPWomen's Health Nurse Practitioner1518444967
  18. Maria Marmolejo-Velazquez, B.ASocial Worker1942183611
  19. Clayton Marolt, DOStudent in an Organized Health Care Education/Training Program1487398772
  20. Megan Marolt, MDPediatrics Physician1821558891
  21. Thomas Marose, CRNACertified Registered Nurse Anesthetist1811322050
  22. Davorka Marovic-Johnson, LPCProfessional Counselor1497972160
  23. Samantha Marquard, FNP-CFamily Nurse Practitioner1881836849
  24. Lois MarquardtReligious Nonmedical Practitioner1427348192
  25. Cindy MarquetteSpeech-Language Pathologist1093904484
  26. Rafael Marquez, LMFTMarriage & Family Therapist1740445386
  27. Marlon Marquino, M.D.Family Medicine Physician1366642704
  28. Kelly MarquitzSpeech-Language Pathologist1891952149
  29. Alison MarraSpeech-Language Pathologist1659850493
  30. Mohamad Kareem Marrache, MDStudent in an Organized Health Care Education/Training Program1093464620
  31. Ladislao Marrero-RiveraStudent in an Organized Health Care Education/Training Program1427796143
  32. Michael Marrocco, MDDiagnostic Radiology Physician1326497363
  33. Natasha Marrus, MDChild & Adolescent Psychiatry Physician1467643528
  34. Jonas Marschall, MDInfectious Disease Physician1609074558
  35. Ellen MarschnerSpeech-Language Pathologist1548459936
  36. Jeffrey Marsh, M.D.Plastic and Reconstructive Surgery Physician1396852794
  37. Jennifer Marsh, PNPPediatric Nurse Practitioner1588636476
  38. Kari MarshSpeech-Language Pathologist1093295909
  39. Nicole Marsh, MSW, LCSW, RPTClinical Social Worker1710617402
  40. Bess Marshall, MDPediatric Endocrinology Physician1164440681
  41. Carla Marshall, RNRegistered Nurse1962273474
  42. Devon Marshall, D.C.Chiropractor1730428731
  43. Josie MarshallSocial Worker1265384911
  44. Lindsey Marshall, RBTBehavior Technician1720821762
  45. Marshay Marshall, RDHDental Hygienist1154839934
  46. Matthew Marshall, NMT-CTechnician/Technologist1295233468
  47. Meghan Marshall, CRNACertified Registered Nurse Anesthetist1750952909
  48. Michele Marshall, M.S.W., L.C.S.W.Clinical Social Worker1104889872
  49. Pamela Marshall, RPHPharmacist1033816640
  50. Sarah Marshall, M.S.Speech-Language Pathologist1518376540

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.