Dr. Itziar Quinzanos Alonso, MD

  • Denver, CO
  • Rheumatologist
NPI1700932324PAC ID7810040151
Medicare services, 2024
21
Medicare patients, 2024
30
Part D claims, 2024
373
Hospital affiliations
1
Medical groups
2
Practice address
777 Bannock St, Denver, CO 80204
Practice phone
Call (303) 602-4935
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Denver Health Medical Center

Hospital · Denver, Colorado

See all 5 affiliations

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Dr. Itziar Quinzanos Alonso is a rheumatologist in Denver, Colorado

Dr. Quinzanos Alonso practices at Denver Health Medical Center in Denver, Colorado, part of Denver Health and Hospital Authority.

Dr. Quinzanos Alonso's NPI, 1700932324, was assigned on January 26, 2007. Dr. Quinzanos Alonso holds Colorado license DR.0047171.

NPI and contact details
Medicare PAC ID
7810040151
NPI enumeration date
January 26, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(303) 602-4935
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
49
Medical school graduation
2003

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Itziar Quinzanos Alonso practices at Denver Health Medical Center in Denver, Colorado

Dr. Quinzanos Alonso's primary practice is Denver Health Medical Center, at 777 Bannock St, Denver, CO 80204 in Denver County. The practice phone is (303) 602-4935.

Source: Dmand AI Affiliation Data

Dr. Itziar Quinzanos Alonso is affiliated with 3 sites of care and 2 medical groups

Dr. Quinzanos Alonso's primary practice is Denver Health Medical Center in Denver, Colorado, part of Denver Health and Hospital Authority. The medical group on file is University of Colorado Medicine (CU Medicine). Dmand AI also links Dr. Quinzanos Alonso to 2 more group practices and clinics and 1 medical group, each named with a free account. Dr. Quinzanos Alonso's employer is on file too: a hospital.

See all 5 affiliations for Dr. Quinzanos Alonso

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Itziar Quinzanos Alonso's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Quinzanos Alonso practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Denver Health Medical CenterAvailable with a free account
+2 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Itziar Quinzanos Alonso is one of 130 rheumatologists in Colorado

Rheumatology is Dr. Quinzanos Alonso's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Quinzanos Alonso is licensed in Colorado.

Specialties and state licenses

  • Rheumatology, ColoradoPrimaryLicense DR.0047171 · taxonomy 207RR0500X

Rheumatologists near Dr. Quinzanos Alonso

Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Itziar Quinzanos Alonso billed Medicare for 21 services in 2024

CMS data shows 21 Medicare services from Dr. Quinzanos Alonso across 1 procedure code in 2024, all of them office visits, for 30 Medicare patients. Medicare paid $1,076 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202421
Medicare patients30
Paid by Medicare$1,076
Procedure codes1

Dr. Quinzanos Alonso's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 182024: 2117%

Dr. Quinzanos Alonso compared with the Colorado median for rheumatologists, 2024

  • Dr. Quinzanos Alonso
  • Colorado median
Medicare services
21vs 3,09299% below
Medicare patients
30vs 28690% below
Part D claims
234vs 1,00477% below

Medians across 122 rheumatologists in Colorado with Dmand AI profiles that report each measure.

Dr. Quinzanos Alonso's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Quinzanos Alonso

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Itziar Quinzanos Alonso treated 30 Medicare patients in 2024, average age 64

CMS counts 30 Medicare patients who saw Dr. Quinzanos Alonso in 2024. The largest group is 65 to 74, with 12 patients. 75% of them have arthritis, and 57% have osteoporosis. Their average risk score is 1.49, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Quinzanos Alonso's median patient age at 59, with 69% women.

Medicare patients, 202430
Average age64
Average risk score1.49

Dr. Quinzanos Alonso's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Chronic conditions among Dr. Quinzanos Alonso's Medicare patients, 2024

  1. Arthritis75%
  2. Osteoporosis57%
  3. High blood pressure50%

Share of Medicare patients with each condition. A patient can have several.

Dr. Quinzanos Alonso's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 59

Patient panel by sex, all payers

  • Women69%
  • Men31%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Itziar Quinzanos Alonso wrote 373 Medicare Part D claims in 2024

In 2024, Dr. Quinzanos Alonso wrote 373 Medicare Part D claims for 83 patients. 61% of them were for generic drugs. CMS names the drug for 234 of them, across 9 drugs with 11 or more claims each, at $300,288 in total drug cost. In 2023, CMS named 280 claims across 10 drugs.

Part D claims, 2024373
Drugs named by CMS9
Total drug cost$300,288
Part D patients83

Dr. Quinzanos Alonso's Part D claims by kind of drug, 2024

  • Generic227 claims61%
  • Brand-name and other146 claims39%

Dr. Quinzanos Alonso's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2802024: 23416%

Drugs named by CMS: 9 in 2024, 10 in 2023.

See all prescribing by Dr. Quinzanos Alonso

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Itziar Quinzanos Alonso takes part in Medicare

Dr. Quinzanos Alonso accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Sources for Dr. Itziar Quinzanos Alonso's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Itziar Quinzanos Alonso

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Itziar Quinzanos Alonso's NPI number?

Dr. Itziar Quinzanos Alonso's NPI number is 1700932324. It was assigned on January 26, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Itziar Quinzanos Alonso?

Dr. Itziar Quinzanos Alonso is a rheumatologist in Denver, Colorado. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).

Where does Dr. Itziar Quinzanos Alonso practice?

Dr. Quinzanos Alonso practices at 777 Bannock St, Denver, CO 80204. Dr. Quinzanos Alonso's primary practice is Denver Health Medical Center in Denver, Colorado, part of Denver Health and Hospital Authority. Dmand AI also links Dr. Quinzanos Alonso to 2 group practices and clinics and 1 medical group.

What is Dr. Itziar Quinzanos Alonso's office phone number?

The practice phone on file for Dr. Quinzanos Alonso is (303) 602-4935.

What is Dr. Itziar Quinzanos Alonso's medical license number?

Dr. Quinzanos Alonso holds Colorado license DR.0047171.

Which hospitals is Dr. Itziar Quinzanos Alonso affiliated with?

Dr. Quinzanos Alonso practices at Denver Health Medical Center in Denver, Colorado.

What medical group is Dr. Itziar Quinzanos Alonso part of?

Dr. Quinzanos Alonso is linked to University of Colorado Medicine (CU Medicine). Dmand AI links Dr. Quinzanos Alonso to 1 more medical group.

Does Dr. Itziar Quinzanos Alonso accept Medicare?

Yes. CMS data shows Dr. Quinzanos Alonso billed Medicare for 21 services in 2024, and Dr. Quinzanos Alonso accepts Medicare assignment.

How many Medicare patients does Dr. Itziar Quinzanos Alonso see?

CMS counts 30 Medicare patients who saw Dr. Quinzanos Alonso in 2024, with an average age of 64.

What services does Dr. Itziar Quinzanos Alonso bill to Medicare?

In 2024, Dr. Quinzanos Alonso's most billed Medicare services were office visit, established patient (99214).

What drugs does Dr. Itziar Quinzanos Alonso prescribe most?

In 2024 Medicare Part D data, Dr. Quinzanos Alonso's most prescribed drugs by claims were Methotrexate, Humira Pen and Prednisone.

How long has Dr. Itziar Quinzanos Alonso been practicing?

Dr. Quinzanos Alonso graduated from medical school in 2003, 23 years ago.

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