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.
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
- Tatjana MarkovicInterpreter1255279832
- Stephanie Markovina, MDRadiation Oncology Physician1336464536
- David Markowitz, M.ED, LPCMental Health Counselor1225046493
- Scott Markowitz, MDPediatric Anesthesiology Physician1801901186
- Alexander MarksCounselor1144748914
- Caitlin Marks, MDPlastic Surgery Physician1932778099
- Erica Marks, MSW, LMSWClinical Social Worker1174021539
- James Marks, MDRadiation Oncology Physician1033237003
- Laura Marks, MDInfectious Disease Physician1164803334
- Lauren Marks, MDPsychiatry Physician1790169126
- Linda Marks, ODOptometrist1770699498
- Roy Marks, M.A., L.C.S.W.Psychologist1154365955
- Jennifer Marks-Foster, PSYDClinical Psychologist1225289721
- Christine Markus, MPT, COMT, DMTPhysical Therapist1861724932
- Tyler Marler, DOFamily Medicine Physician1255992905
- Kathryn Marlow, MDPhysical Medicine & Rehabilitation Physician1144664913
- Katie Marlow, WHNPWomen's Health Nurse Practitioner1518444967
- Maria Marmolejo-Velazquez, B.ASocial Worker1942183611
- Clayton Marolt, DOStudent in an Organized Health Care Education/Training Program1487398772
- Megan Marolt, MDPediatrics Physician1821558891
- Thomas Marose, CRNACertified Registered Nurse Anesthetist1811322050
- Davorka Marovic-Johnson, LPCProfessional Counselor1497972160
- Samantha Marquard, FNP-CFamily Nurse Practitioner1881836849
- Lois MarquardtReligious Nonmedical Practitioner1427348192
- Cindy MarquetteSpeech-Language Pathologist1093904484
- Rafael Marquez, LMFTMarriage & Family Therapist1740445386
- Marlon Marquino, M.D.Family Medicine Physician1366642704
- Kelly MarquitzSpeech-Language Pathologist1891952149
- Alison MarraSpeech-Language Pathologist1659850493
- Mohamad Kareem Marrache, MDStudent in an Organized Health Care Education/Training Program1093464620
- Ladislao Marrero-RiveraStudent in an Organized Health Care Education/Training Program1427796143
- Michael Marrocco, MDDiagnostic Radiology Physician1326497363
- Natasha Marrus, MDChild & Adolescent Psychiatry Physician1467643528
- Jonas Marschall, MDInfectious Disease Physician1609074558
- Ellen MarschnerSpeech-Language Pathologist1548459936
- Jeffrey Marsh, M.D.Plastic and Reconstructive Surgery Physician1396852794
- Jennifer Marsh, PNPPediatric Nurse Practitioner1588636476
- Kari MarshSpeech-Language Pathologist1093295909
- Nicole Marsh, MSW, LCSW, RPTClinical Social Worker1710617402
- Bess Marshall, MDPediatric Endocrinology Physician1164440681
- Carla Marshall, RNRegistered Nurse1962273474
- Devon Marshall, D.C.Chiropractor1730428731
- Josie MarshallSocial Worker1265384911
- Lindsey Marshall, RBTBehavior Technician1720821762
- Marshay Marshall, RDHDental Hygienist1154839934
- Matthew Marshall, NMT-CTechnician/Technologist1295233468
- Meghan Marshall, CRNACertified Registered Nurse Anesthetist1750952909
- Michele Marshall, M.S.W., L.C.S.W.Clinical Social Worker1104889872
- Pamela Marshall, RPHPharmacist1033816640
- Sarah Marshall, M.S.Speech-Language Pathologist1518376540
The largest Missouri cities
- Kansas City13,759
- Springfield6,403
- Columbia6,004
- Joplin2,443
- Chesterfield2,132
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.