Karlynn D. Sievers, MD
NPI 1558434720ActiveIndividual· Family Medicine· Casper, WY
Family Medicine (MD) in Casper, Wyoming, trained at University of Missouri, Columbia School of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $153,245 for 1,560 claims, against $21,731 paid for services in 2024. Organon LLC reported $1,542 in payments in 2025, mostly compensation for serving as faculty or as a speaker for a me.
Overview
| NPI | 1558434720 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Nov 16, 2006 |
| Last updated in NPPES | Sep 20, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Family Medicine Primary | 207Q00000X | 2002014698 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Family Practice (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 158 |
|---|---|
| Services billed | 399 across 34 procedure codes |
| Paid by Medicare | $21,731 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,560 · 3,227 30-day fills |
|---|---|
| Patients | 244 |
| Total drug cost | $153,245 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Missouri, Columbia School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Family Practice |
Medical group
- St Marys Hospital and Medical Center IncGrand Junction, CO · 34 clinicians
Hospital affiliation
- Intermountain Health St. Mary's Regional HospitalGrand Junction, CO
Industry payments (Open Payments)
- 2025$1,542 · 2 payments from 1 company
- 2024$4,141 · 4 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Organon LLC | $1,542 | 2 |
What the 2025 payments were for
- Compensation for serving as faculty or as a speaker for a medical education program$1,521 · 1 payment
- Food and Beverage$20.93 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 94 family medicine physicians in Casper · All family medicine physicians in Wyoming