Nancy Sein, DO
NPI 1689972531 · Rheumatology Physician · Scottsdale, AZ
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Sein, DO is a Rheumatology Physician provider in Scottsdale, AZ (NPI 1689972531).
Provider details
- NPI number
- 1689972531
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 008355 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 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
2,165 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) |
|---|---|---|
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 803 | $14 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 505 | $121 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 444 | $16 |
| Infusion Into a Vein for Therapy, Prevention, Or Diagnosis, 1 Hour Or Less96365 | 181 | $59 |
| Administration of Chemotherapy Into Vein, Each Additional Hour96415 | 67 | $25 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 314 | 98 |
| Hydroxychloroquine Sulfate | 165 | 55 |
| Prednisone | 141 | 42 |
| Alendronate Sodium | 81 | 29 |
| Folic Acid | 78 | 24 |
| Celecoxib | 64 | 23 |
| Etanerceptbrand: Enbrel Sureclick | 58 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$15 across 1 record (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
- 2011-03-02
- Last updated
- 2024-02-21
- Certified
- 2024-02-21
Frequently asked questions
- What is Nancy Sein's NPI number?
- Nancy Sein's National Provider Identifier (NPI) is 1689972531, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Sein's specialty?
- Nancy Sein is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Nancy Sein located?
- Nancy Sein's practice location on file with NPPES is 8405 N Pima Center Pkwy Ste 201, Scottsdale, AZ 85258-4670.
- What is Nancy Sein's phone number?
- The practice phone number listed in the NPPES registry for Nancy Sein is (480) 587-6775.
- Does Nancy Sein accept Medicare?
- Nancy Sein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Sein's NPI active?
- Yes — Nancy Sein's NPI (1689972531) is active in the NPPES registry as of the last update on 2024-02-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.