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 120 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. Brian Dieckgraefe, MDGastroenterology Physician1295751428
  2. Sherilyn DieckhausSpeech-Language Pathologist1578694774
  3. Elizabeth Diehl, M.D.Pediatrics Physician1063430940
  4. Karen Diehl, CPNPPediatric Nurse Practitioner1124126164
  5. Morgan Diehl, PLPCMental Health Counselor1518849652
  6. Christine Diekman, OTRSpecialist1578691291
  7. Constance Diekman, RDRegistered Dietitian1952455198
  8. Annette Diekmann, PTAPhysical Therapy Assistant1659632149
  9. David Diemer, MDDiagnostic Radiology Physician1669494241
  10. Kathryn Diemer, MDEndocrinology, Diabetes & Metabolism Physician1891713590
  11. Karen Diemert, MSW, ACSW, LCSWClinical Social Worker1396770954
  12. Paige Diepenbrock, ODOptometrist1962070235
  13. Amanda Diercks, N.P.Nurse Practitioner1679946156
  14. Ethan Diestler, CRNACertified Registered Nurse Anesthetist1700732807
  15. Patrick DieterProfessional Counselor1679318372
  16. Karissa Dieterich, PHARM DPharmacist1295601623
  17. Constance Dietrick, LCSWClinical Social Worker1649838020
  18. Morgan DietzSocial Worker1285303818
  19. Judith Dietzler, RPHPharmacist1003899956
  20. Nicole Difani, MS, RD, LDRegistered Dietitian1972878114
  21. Janet Diffey, ANP-BCNurse Practitioner1083990535
  22. Colin Diffie, MDRheumatology Physician1942616404
  23. Michael DiffleyStudent in an Organized Health Care Education/Training Program1871097998
  24. Amber Digges, LPNLicensed Practical Nurse1205697174
  25. Gloria Diggs, LCSWClinical Social Worker1659635456
  26. Linda Diggs, MSWClinical Social Worker1487090486
  27. Stephanie Diggs, MDNeonatal-Perinatal Medicine Physician1174044739
  28. Tiffany Diggs, LCSWClinical Social Worker1063908333
  29. Marissa Digregorio, DNP, AGNPAdult Health Nurse Practitioner1700561321
  30. Hanan Dihowm, MDHospitalist Physician1346592383
  31. Sherryl Dilallo, AGNPAcute Care Nurse Practitioner1619993839
  32. Ana Dilber, MA LPCCounselor1396180915
  33. Marie Dilg, LCSWClinical Social Worker1699042275
  34. Kelsi Dilger, PT, DPTPhysical Therapist1477381499
  35. Christine Dill, FNP-BCFamily Nurse Practitioner1285176297
  36. Shirley Dillard, DMDGeneral Practice Dentistry1114138260
  37. Teresa Dillard, PNPNurse Practitioner1689830168
  38. Kelly Diller, LPC, MACMental Health Counselor1366707226
  39. Molly Dilley, PA-CPhysician Assistant1770791386
  40. Katrina DillonHome Health Aide1184287930
  41. Lauren Dillon, AAAnesthesiologist Assistant1477933992
  42. Patrick Dillon, MDPediatric Surgery Physician1649296948
  43. Jamie Dilorenzo - Lohman, LCSWClinical Social Worker1992373054
  44. Duane Dilworth, DDSPublic Health Dentistry1427221688
  45. Duane Dilworth, M.D.Dermatology Physician1730507617
  46. Ann Dimaio, MDPediatric Emergency Medicine (Pediatrics) Physician1811908353
  47. Tiana Dimasi, MDPsychiatry Physician1437893229
  48. Victoria Dimuro, PLPCMental Health Counselor1598631509
  49. Christopher DimzaStudent in an Organized Health Care Education/Training Program1548905276
  50. Bethanie Dinan, P.A.Physician Assistant1568682375

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.