Quick answers
- Which hospitals does Sonia O. Klein work at?
- Medicare's official clinician data lists Sonia O. Klein at 2 hospitals: Billings Clinic Hospital and Johnson County Healthcare Center. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Sonia O. Klein see patients?
- Medicare's clinician data lists 3 practice locations, including Big Piney, WY, Buffalo, WY and Pinedale, WY. Call before your visit to confirm the address.
- What is Sonia O. Klein's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Sonia O. Klein accept Medicare assignment?
- Yes. Medicare's clinician data says Sonia O. Klein accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Sonia O. Klein?
- (307) 276-3306, as listed in official Medicare / NPI Registry data.
- What is Sonia O. Klein's NPI number?
- 1922728237. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Sonia O. Klein works
Medicare's Facility Affiliation Data lists Sonia O. Klein at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Billings Clinic HospitalBillings, MT · Acute Care Hospital · CCN 270004
- Johnson County Healthcare CenterBuffalo, WY · Critical Access Hospital · CCN 531308
Practice locations
Addresses where Sonia O. Klein is enrolled with Medicare (CMS data updated 2026-10-02).
- 103 W 3rd StBig Piney, WY 83113 (307) 276‑3306
- 496 Fort StBuffalo, WY 82834 (307) 278‑0280
- 625 E Hennick StPinedale, WY 82941 (307) 367‑4133
Group practices
Medicare enrollment lists Sonia O. Klein as a member of these groups (CMS data updated 2026-10-02).
- Sublette County Hospital District14 clinicians in the group
- Buffalo Urgent Care Inc4 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Wyoming
Clinicians with the same Medicare primary specialty in Wyoming — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2018 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1922728237 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians