David Christianson, M.D.
NPI 1770565871ActiveIndividual· Internal Medicine, Hematology & Oncology· Billings, MT
Internal Medicine, Hematology & Oncology (M.D.) in Billings, Montana, trained at University of Oklahoma College of Medicine (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $6,523,813 for 2,939 claims, against $147,094 paid for services in 2024.
Overview
| NPI | 1770565871 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Nov 16, 2005 |
| Last updated in NPPES | Sep 8, 2010 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Hematology & Oncology Primary | 207RH0003X | 10533 | MT |
| Internal Medicine, Medical Oncology | 207RX0202X | 10533 | MT |
| Internal Medicine, Medical Oncology | 207RX0202X | 7008A | WY |
| Internal Medicine, Hematology & Oncology | 207RH0003X | 7008A | WY |
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 - Hematology/Oncology (MT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 475 |
|---|---|
| Services billed | 2,870 across 16 procedure codes |
| Paid by Medicare | $147,094 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,939 · 4,506 30-day fills |
|---|---|
| Patients | 347 |
| Total drug cost | $6,523,813 |
| Generic share | 78% of claims |
Education and affiliations
| Medical school | University of Oklahoma College of Medicine |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Hematology/Oncology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Scl Health MontanaBillings, MT · 38 clinicians
Hospital affiliations
- Central Montana Medical CenterLewistown, MT
- Cody Regional HealthCody, WY
- Holy Rosary HospitalMiles City, MT
- Intermountain Health St Vincent Regional HospitalBillings, MT
- Powell Valley HospitalPowell, WY
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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