Gregory Alan Christiansen, M.D.
NPI 1831175629ActiveIndividual· Ophthalmology· Salt Lake City, UT
Ophthalmology (M.D.) in Salt Lake City, Utah, trained at University of Utah School of Medicine (class of 2000). Their prescriptions cost Medicare Part D more than their services did: $1,320,220 for 13,156 claims, against $532,919 paid for services in 2024. Abbvie Inc. was the largest of 4 companies reporting payments in 2025, $1,098 in all, mostly food and beverage.
Overview
| NPI | 1831175629 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Dec 22, 2005 |
| Last updated in NPPES | Feb 25, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Ophthalmology Primary | 207W00000X | LL15827 | OR |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Ophthalmology (IA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,311 |
|---|---|
| Services billed | 6,580 across 45 procedure codes |
| Paid by Medicare | $532,919 |
Part D prescriptions in 2024
| Prescriptions (claims) | 13,156 · 22,269 30-day fills |
|---|---|
| Patients | 1,603 |
| Total drug cost | $1,320,220 |
| Generic share | 68% of claims |
Education and affiliations
| Medical school | University of Utah School of Medicine |
|---|---|
| Graduation year | 2000 |
| Medicare specialty | Ophthalmology |
Medical group
- Wolfe Clinic IncSpencer, IA · 39 clinicians
Hospital affiliation
- Unitypoint Health - MarshalltownMarshalltown, IA
Industry payments (Open Payments)
- 2025$1,098 · 30 payments from 4 companies
- 2024$737.81 · 33 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $577.81 | 12 |
| Alcon Vision LLC | $309.10 | 11 |
| Bausch & Lomb Americas Inc. | $115.10 | 6 |
| Sight Sciences, Inc. | $96.45 | 1 |
What the 2025 payments were for
- Food and Beverage$1,098 · 30 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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