Cristina Arriens, MD
NPI 1861618183 · Rheumatology Physician · Oklahoma City, OK
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cristina Arriens, MD is a Rheumatology Physician provider in Oklahoma City, OK (NPI 1861618183).
Provider details
- NPI number
- 1861618183
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- N9166 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
48 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 48 | $168 |
Typical Medicare-allowed amounts for these services range $168–$168 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 134 | 32 |
| Prednisone | 80 | 22 |
| Mycophenolate Mofetil | 50 | 11 |
| Methotrexate Sodiumbrand: Methotrexate | 43 | — |
| Belimumabbrand: Benlysta | 30 | — |
| Gabapentin | 25 | — |
| Leflunomide | 20 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$8,341 across 11 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-04-17
- Last updated
- 2015-07-22
Frequently asked questions
- What is Cristina Arriens's NPI number?
- Cristina Arriens's National Provider Identifier (NPI) is 1861618183, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cristina Arriens's specialty?
- Cristina Arriens is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Cristina Arriens located?
- Cristina Arriens's practice location on file with NPPES is 825 Ne 13th St, Oklahoma City, OK 73104-5005.
- What is Cristina Arriens's phone number?
- The practice phone number listed in the NPPES registry for Cristina Arriens is (405) 271-4987.
- Does Cristina Arriens accept Medicare?
- Cristina Arriens is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cristina Arriens's NPI active?
- Yes — Cristina Arriens's NPI (1861618183) is active in the NPPES registry as of the last update on 2015-07-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.