NPPES file of Aug 9, 2026

Doctors and health care providers in Casper, WY

1,924 individual NPPES records list a practice address in Casper, 2nd of 45 Wyoming cities. The largest group is case manager/care coordinator: 219, 11% of the city's records, against 10% across Wyoming. Page 14 of 39.

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

The 8 largest groups in Casper

Source: CMS NPPES primary taxonomy, file of Aug 9, 2026.

Casper in Wyoming

  • Rank in Wyoming2nd of 45 cities by records
  • Share of the state14.7% of Wyoming's records
  • Specialties present25 or more taxonomy codes
  • Top three groups24.5% of all records
  • Case Manager/Care Coordinator rank2nd of the 10 Wyoming cities with the most

Compared with Wyoming as a whole, Casper has 2.2× the state's share of student in an organized health care education/training program records.

Providers in Casper, alphabetically

  1. Brittany Greenbaum, D.O.Otolaryngology Physician1952793416
  2. Jennifer Greenup, LCSWClinical Social Worker1841423688
  3. Clarissa Gregory, PHARMDPharmacist1750714143
  4. Nicolette Grening, PA-CPhysician Assistant1598378564
  5. Emily Griesbach, PHARM.D.Pharmacist1508291147
  6. Tracy GriffeeCase Manager/Care Coordinator1992031983
  7. Kayla GriffinCase Manager/Care Coordinator1306715404
  8. Jenni Griffith, PA-CPhysician Assistant1952881872
  9. Randall Griffith, D.D.S.General Practice Dentistry1992827489
  10. Rebecca Griffith, R.N.General Practice Registered Nurse1568589554
  11. Heather Grigg, MOTR/LOccupational Therapist1841447232
  12. Debra Griner, FNP-CFamily Nurse Practitioner1861460289
  13. Michelle Grissom, MS, LPCCounselor1023254554
  14. Maggie Grooms, PHARM.D., R.PH.Pharmacist1881020337
  15. Sarah Grooms, MDPediatrics Physician1609887470
  16. Breck Groskreutz, PA-CPhysician Assistant1972130565
  17. Shelby GroskreutzPhysical Therapist1699387027
  18. Bengt Grua, MDPain Medicine (Anesthesiology) Physician1275093650
  19. Denice Grubb, H.I.S.Hearing Instrument Specialist1821491911
  20. Robert Grubb, H.I.S.Hearing Instrument Specialist1316199623
  21. Megan GrubeEmergency Medicine Physician1811314099
  22. Amy Gruwell, FNPNurse Practitioner1699761585
  23. Alanna Gudmunson, DVMVeterinarian1205785524
  24. Elizabeth Gunderson, MASTERSCounselor1285955690
  25. Jana Gurkin, PPCProfessional Counselor1720831266
  26. Maxwell Gustafson, ODOptometrist1720581333
  27. Paul Gustafson, O.D.Optometrist1184666422
  28. Aleece Gutierrez, LMSWClinical Social Worker1306878913
  29. Elizabeth Gutierrez, PHARM DPharmacist1992005557
  30. Teresa Gutwein, BSWCase Manager/Care Coordinator1740426279
  31. Ann Haack, PAPhysician Assistant1629037130
  32. James Haden, MDUrology Physician1578679809
  33. Miranda Haefele, DDSGeneral Practice Dentistry1104173517
  34. Peter Haftkowycz, M.D.Anesthesiology Physician1740742303
  35. Reed Haga, DOStudent in an Organized Health Care Education/Training Program1285423988
  36. Keith Hageman, LPCProfessional Counselor1629779012
  37. Kyra HagemanCase Manager/Care Coordinator1023537453
  38. Robert Hageman, DDSOral and Maxillofacial Surgery (Dentist)1558439265
  39. Brittany Hager, PA-CMedical Physician Assistant1285117903
  40. Mary Hager, MS FNPFamily Nurse Practitioner1003994484
  41. Jamaica Hahn, COTAOccupational Therapy Assistant1124208517
  42. Joseph Hahn, MDOrthopaedic Surgery Physician1114192473
  43. Teecee Hailey-Fulfer, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1093117210
  44. Jody Halferty, R.N.Registered Nurse1619128352
  45. Allana Hall, MDPsychiatry Physician1417698572
  46. Cami HallCase Manager/Care Coordinator1053000448
  47. Marguerite Hall, R.N.General Practice Registered Nurse1164549150
  48. Sarah Hall, PA-CPhysician Assistant1881355865
  49. Cristy Hall-Ederer, DNPFamily Nurse Practitioner1942710447
  50. Kelsey Halstead, DPTPhysical Therapist1093196248

The largest Wyoming cities

  1. Cheyenne2,782
  2. Laramie1,606
  3. Sheridan860
  4. Gillette696
  5. Rock Springs620

All of Wyoming →

How to read this directory

Casper, Wyoming appears in the CMS National Plan and Provider Enumeration System with 1,924 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 Casper - 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 Casper 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 Casper is weighted toward Case Manager/Care Coordinator (219 clinicians, followed by Clinical Social Worker with 154 and Professional Counselor with 98). 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 Wyoming's population, Casper reports roughly 329.4 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 Wyoming's most common specialties, Community Health Worker is the most prominent one with no provider currently listing a Casper practice address, a coverage gap Casper patients typically fill by traveling to a larger nearby hub.

For Casper 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 Casper, WY?

There are 1,924 registered healthcare providers in Casper, WY, covering 25 or more specialties. This includes physicians, dentists, therapists, and other licensed providers.

What are the most common medical specialties in Casper?

The most common specialties in Casper are Case Manager/Care Coordinator, Clinical Social Worker, Professional Counselor, Pharmacist, Physical Therapist. Case Manager/Care Coordinator has the most providers with 219.

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.