Cristina Gale Arriens, MD
NPI 1861618183ActiveIndividual· Internal Medicine, Rheumatology· Oklahoma City, OK
Internal Medicine, Rheumatology (MD) in Oklahoma City, Oklahoma, trained at University of Texas Southwestern Medical School at Dallas (class of 2007). Their prescriptions cost Medicare Part D more than their services did: $520,461 for 600 claims, against $118,845 paid for services in 2024. Astrazeneca Pharmaceuticals LP was the largest of 4 companies reporting payments in 2025, $10,899 in all, mostly consulting fees.
Overview
| NPI | 1861618183 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 17, 2007 |
| Last updated in NPPES | Jul 22, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Rheumatology Primary | 207RR0500X | 31644 | OK |
| Student in an Organized Health Care Education/Training Program | 390200000X | N9166 | TX |
| Internal Medicine | 207R00000X | N9166 | TX |
| Internal Medicine | 207R00000X | MD2010-0556 | NM |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Rheumatology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 25 |
|---|---|
| Services billed | 6,034 across 21 procedure codes |
| Paid by Medicare | $118,845 |
Part D prescriptions in 2024
| Prescriptions (claims) | 600 · 995 30-day fills |
|---|---|
| Patients | 53 |
| Total drug cost | $520,461 |
| Generic share | 85% of claims |
Education and affiliations
| Medical school | University of Texas Southwestern Medical School at Dallas |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Rheumatology |
Medical group
- Oklahoma Medical Research FoundationOklahoma City, OK · 11 clinicians
Hospital affiliation
- Ssm Health St Anthony Hospital - Oklahoma CityOklahoma City, OK
Industry payments (Open Payments)
- 2025$10,899 · 5 payments from 4 companies
- 2024$8,341 · 11 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $8,055 | 1 |
| Biogen, Inc. | $2,180 | 1 |
| E.R. Squibb & Sons, L.L.C. | $634.59 | 2 |
| Genentech, Inc. | $29.25 | 1 |
What the 2025 payments were for
- Consulting Fee$10,735 · 3 payments
- Travel and Lodging$134.59 · 1 payment
- Food and Beverage$29.25 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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