NPPES file of Aug 9, 2026

Doctors and health care providers in Chesterfield, MO

2,132 individual NPPES records list a practice address in Chesterfield, 6th of 317 Missouri cities. The largest group is internal medicine physician: 142, 7% of the city's records, against 2% across Missouri. Page 29 of 43.

CMS NPPES registry, file of Aug 9, 2026 · method · Verify with CMS →

Chesterfield in Missouri

  • Rank in Missouri6th of 317 cities by records
  • Share of the state1.9% of Missouri's records
  • Specialties present25 or more taxonomy codes
  • Top three groups17.4% of all records
  • Internal Medicine Physician rank4th of the 10 Missouri cities with the most

Compared with Missouri as a whole, Chesterfield has 3.3× the state's share of specialist records and 0.38× its share of clinical social worker records.

Providers in Chesterfield, alphabetically

  1. Whitney Nunn, SA-CSpecialist1609032655
  2. Keith Nunnelee, M.D.Specialist1144215070
  3. Tarisai Nyahoda, MDGeriatric Medicine (Internal Medicine) Physician1053971846
  4. Elizabeth O Brien, MDPediatrics Physician1831276427
  5. Crystal O'BrienAdult Health Nurse Practitioner1366898678
  6. Sarah O'Leary, DNPCertified Registered Nurse Anesthetist1871086900
  7. Megan O'Mahony, PTPhysical Therapist1235181173
  8. Valorie O'Mara, ANPAdult Health Nurse Practitioner1568648418
  9. Jill Oberle, MDHospice and Palliative Medicine (Internal Medicine) Physician1184697013
  10. Lauren Oberle, FNPFamily Nurse Practitioner1427401017
  11. Darryl Oblack, D.C.Chiropractor1215076997
  12. Laura Ochieng, FNPFamily Nurse Practitioner1326437831
  13. Amanda Odenwald, PHARMDPharmacist1407719073
  14. Mary Odowd, MDInternal Medicine Physician1235214214
  15. Karol OelschlaegerHealth Educator1508702937
  16. Michael Ogawa, MDHematology & Oncology Physician1477896538
  17. Sylvia OgilvieSocial Worker1407638349
  18. Lainey OgleFamily Nurse Practitioner1003639600
  19. Ralph Oiknine, M.D.Endocrinology, Diabetes & Metabolism Physician1255365581
  20. Izuchukwu Okonkwo, MDInternal Medicine Physician1063101996
  21. Trish Olaughlin, FNP-CFamily Nurse Practitioner1730559436
  22. Tara Olendorff, LCSWSocial Worker1386460194
  23. Feri OliaeiPharmacist1558079673
  24. Michael Oliveri, PH.D.Clinical Neuropsychologist1417901885
  25. Audrey Olsen, DOFamily Medicine Physician1578499620
  26. Jessica Olsen, LCSWClinical Social Worker1437076007
  27. Joyce Olshan, OTROccupational Therapist1508908237
  28. Gary Omell, M.D.Diagnostic Radiology Physician1760415897
  29. Haydan Ommen, PAPhysician Assistant1699525121
  30. Caitlyn Orawiec, OTOccupational Therapist1679175590
  31. Cheryl OrfContinuing Education/Staff Development Registered Nurse1629729058
  32. Lindsay OrlandoSpeech-Language Pathologist1902351976
  33. Heidi OrtynCertified Registered Nurse Anesthetist1225809072
  34. Lauren OsiasPhysician Assistant1275345951
  35. Sarah Ostermiller, SLPSpeech-Language Pathologist1710539721
  36. Kelsey Ostrander, PHARMDPharmacist1588275598
  37. Czerina Ottes, NPFamily Nurse Practitioner1780281618
  38. Kathleen Ottolini, D.C.Chiropractor1295030997
  39. Marisa OvertonAudiologist1053430884
  40. Susan Owens, MA, CCC-SLP SPEECH PSpeech-Language Pathologist1639495468
  41. Amy Pacanowski, P.T.Physical Therapist1962619197
  42. Karen Page, PTPhysical Therapist1518129725
  43. Jasmine Pakele, DCChiropractor1831937028
  44. Jennifer Palada, PHARMDPharmacist1912292897
  45. George Paletta, M.D.Sports Medicine (Neuromusculoskeletal Medicine) Physician1497720825
  46. Jake Pariani, DMDDentist1326769563
  47. Purvi Parikh, M.D.Endocrinology, Diabetes & Metabolism Physician1346229838
  48. Shane Parish, MSN, APRN. AGNP-CPrimary Care Nurse Practitioner1992217020
  49. John Park, MDOtolaryngic Allergy Physician1316936115
  50. Stephanie Park, M.D.Allergy & Immunology Physician1497838387

The largest Missouri cities

  1. Saint Louis27,605
  2. Kansas City13,759
  3. Springfield6,403
  4. Columbia6,004
  5. Joplin2,443

All of Missouri →

How to read this directory

Chesterfield, Missouri appears in the CMS National Plan and Provider Enumeration System with 2,132 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 Chesterfield - 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 Chesterfield 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 Chesterfield is weighted toward Internal Medicine Physician (142 clinicians, followed by Physical Therapist with 118 and Speech-Language Pathologist with 112). 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, Chesterfield reports roughly 34.4 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 Chesterfield practice address, a coverage gap Chesterfield patients typically fill by traveling to a larger nearby hub.

For Chesterfield 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 Chesterfield, MO?

There are 2,132 registered healthcare providers in Chesterfield, MO, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Chesterfield?

The most common specialties in Chesterfield are Internal Medicine Physician, Physical Therapist, Speech-Language Pathologist, Family Nurse Practitioner, Pharmacist. Internal Medicine Physician has the most providers with 142.

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.