NPPES file of Aug 9, 2026

Doctors and health care providers in Sioux City, IA

1,486 individual NPPES records list a practice address in Sioux City, 7th of 215 Iowa cities. The largest group is mental health counselor: 93, 6% of the city's records, against 5% across Iowa. Page 5 of 30.

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

Sioux City in Iowa

  • Rank in Iowa7th of 215 cities by records
  • Share of the state3.1% of Iowa's records
  • Specialties present25 or more taxonomy codes
  • Top three groups18.3% of all records
  • Mental Health Counselor rank6th of the 10 Iowa cities with the most

Compared with Iowa as a whole, Sioux City has 6.5× the state's share of home health aide records and 0.67× its share of physician assistant records.

Providers in Sioux City, alphabetically

  1. Pam Cassens, RNRegistered Nurse1467760744
  2. Rodney Cassens, MDFamily Medicine Physician1063455053
  3. Diana Castro-Moctezuma, LMHC, IADCMental Health Counselor1730507914
  4. Khalid Changal, M.DInterventional Cardiology Physician1861846560
  5. Sean Chartier, DCChiropractor1316955594
  6. Patrick Chau, M.D.Child & Adolescent Psychiatry Physician1992766299
  7. Minaxi ChaudhariPharmacist1508573999
  8. Zean Chen, MDEmergency Medicine Physician1871090670
  9. Li Chi Chew, MDNeonatal-Perinatal Medicine Physician1720642549
  10. Alexi Chicoine, MSN, ARNP, NNP-BCCritical Care Neonatal Nurse Practitioner1144773276
  11. Bradley Chicoine, DCChiropractor1710960513
  12. Jennifer Chicoine, D.C.Chiropractor1790923092
  13. Nicholas Chicoine, D.C.Chiropractor1215221288
  14. Lin Chicoine PetersonChiropractor1477527422
  15. Andrea ChiliquingaHomemaker1215827258
  16. Elizabeth Chilton, ARNPFamily Nurse Practitioner1982637310
  17. Min-Hwa Chow, M.D.Nephrology Physician1407801053
  18. Rhonda Christensen, ARNPNurse Practitioner1225389406
  19. Jessie Christopherson, LMHCMental Health Counselor1376029843
  20. Nancy Christopherson, LMHCMental Health Counselor1295079549
  21. Natalie Christopherson, LMHC, LMFTMarriage & Family Therapist1013323963
  22. Noah Chun, MDFamily Medicine Physician1861248189
  23. Karli Church, CTRS, MSOTOccupational Therapist1932666435
  24. Doria Ciannelli, MDAnesthesiology Physician1386645455
  25. Matthew Cihak, LMHC, CCDP-DMental Health Counselor1124449541
  26. Aimee Clancy, L.I.S.W.Clinical Social Worker1437566999
  27. Dave Clark, CRNACertified Registered Nurse Anesthetist1831191634
  28. Garry Clark, D.O.Pain Medicine (Physical Medicine & Rehabilitation) Physician1952380750
  29. Leah Clark, ED.S, BCBABehavior Analyst1578981403
  30. Mary ClarkSpeech-Language Pathologist1255958252
  31. Rebecca ClarkPhysical Therapy Assistant1811541626
  32. Andi ClaytonPharmacist1871196683
  33. Peter Cmorej, M.D.Surgery Physician1174987895
  34. Tina Cobbs, BCBABehavior Analyst1831716356
  35. Virginia CochranMental Health Counselor1366749939
  36. Marcelina Cockburn, CADCAddiction (Substance Use Disorder) Counselor1427419449
  37. Paul Coffin, D.P.M.Podiatrist1336133966
  38. Allen Cogswell, CRNACertified Registered Nurse Anesthetist1790301182
  39. Audra Cole, LISWSocial Worker1891769584
  40. Kelsie Colfack, ATCAthletic Trainer1841099124
  41. Anne Collier, OTOccupational Therapist1134165822
  42. Johnathan Colling, M.D.Emergency Medicine Physician1598788416
  43. Jennifer Collins, MAMental Health Counselor1649028366
  44. Rick Colwell, D.O.Family Medicine Physician1396710497
  45. Alexis ComerRegistered Nurse1558062075
  46. Jessica ComstockMental Health Counselor1467000786
  47. Courtney Conatser, PHARM.D.Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1902184187
  48. Judith Conner, MSWClinical Social Worker1043270333
  49. Britney Cooper, MS CCC-SLPSpeech-Language Pathologist1952744179
  50. Jenna Cooper, LMSWSocial Worker1265376859

The largest Iowa cities

  1. Iowa City7,163
  2. Des Moines5,538
  3. Cedar Rapids2,949
  4. West Des Moines2,201
  5. Davenport2,058

All of Iowa →

How to read this directory

Sioux City, Iowa appears in the CMS National Plan and Provider Enumeration System with 1,486 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 Sioux City - 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 Sioux City 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 Sioux City is weighted toward Mental Health Counselor (93 clinicians, followed by Clinical Social Worker with 91 and Family Medicine Physician with 88). 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 Iowa's population, Sioux City reports roughly 46.3 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.

For Sioux City 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 Sioux City, IA?

There are 1,486 registered healthcare providers in Sioux City, IA, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Sioux City?

The most common specialties in Sioux City are Mental Health Counselor, Clinical Social Worker, Family Medicine Physician, Family Nurse Practitioner, Addiction (Substance Use Disorder) Counselor. Mental Health Counselor has the most providers with 93.

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.