Itziar Quinzanos Alonso, MD
NPI 1700932324 · Rheumatology Physician · Denver, CO
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Itziar Quinzanos Alonso, MD is a Rheumatology Physician provider in Denver, CO (NPI 1700932324).
Provider details
- NPI number
- 1700932324
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 47171 (CO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
21 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 21 | $98 |
Typical Medicare-allowed amounts for these services range $98–$98 (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 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Methotrexate Sodiumbrand: Methotrexate | 57 | 24 |
| Adalimumabbrand: Humira Pen | 32 | — |
| Prednisone | 31 | 14 |
| Hydroxychloroquine Sulfate | 28 | — |
| Alendronate Sodium | 26 | 11 |
| Allopurinol | 16 | — |
| Etanerceptbrand: Enbrel Sureclick |
Practice location
Mailing address
Additional practice locations (1)
- 501 28th StDenver, CO 80205-3003Phone: (303) 436-6000
Registry dates
- Enumerated
- 2007-01-26
- Last updated
- 2021-03-09
- Certified
- 2021-03-09
Frequently asked questions
- What is Itziar Quinzanos Alonso's NPI number?
- Itziar Quinzanos Alonso's National Provider Identifier (NPI) is 1700932324, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Itziar Quinzanos Alonso's specialty?
- Itziar Quinzanos Alonso is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Itziar Quinzanos Alonso located?
- Itziar Quinzanos Alonso's practice location on file with NPPES is 660 Bannock St, Denver, CO 80204-4506.
- What is Itziar Quinzanos Alonso's phone number?
- The practice phone number listed in the NPPES registry for Itziar Quinzanos Alonso is (303) 602-6170.
- Does Itziar Quinzanos Alonso accept Medicare?
- Itziar Quinzanos Alonso is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Itziar Quinzanos Alonso's NPI active?
- Yes — Itziar Quinzanos Alonso's NPI (1700932324) is active in the NPPES registry as of the last update on 2021-03-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.