NPPES file of Aug 9, 2026

Carol Ann Alonso, M.D.

Dermatology Physician · Westminster, CO

Carol Ann Alonso, M.D. is a dermatology physician with a practice address in Westminster, Colorado, and NPI 1386962256, issued on May 17, 2010. Check the license on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1386962256
Name
Carol Ann Alonso
Credential
M.D.
Primary taxonomy
Dermatology Physician 207N00000X
License number
N4898 TX
Self-reported in NPPES; status is on the state search
Practice location
905 W 124TH Ave Ste 170, Westminster, CO 80234
Phone
(303) 442-6647
Enumerated
May 17, 2010
Record last updated
Jun 2, 2022
Medicare enrollment
Enrolled (PECOS I20130905000835); accepts Medicare assignment
Medical or professional school
University Of Texas Medical School At Houston, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 905 W 124TH Ave Ste 170

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Anastasia Benoit, M.D.MOHS-Micrographic Surgery Physician1063708709
  2. Arelis Burgos, MDDermatology Physician1609865427
  3. Chae Choi, D.D.S.General Practice Dentistry1306062088
  4. Jessica Olander, MDMOHS-Micrographic Surgery Physician1659515658

Verify Carol Ann Alonso in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical BoardCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Colorado license search

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11% fewer Medicare Part D claims than the average dermatology physician in 2024

710 Medicare Part D claims for 283 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.

  1. Carol Alonso710
  2. Specialty average797

Most prescribed

  1. Clobetasol Propionate108 claims
  2. Triamcinolone Acetonide105 claims
  3. Hydrocortisone81 claims
  4. Ketoconazole72 claims
  5. Doxycycline Hyclate36 claims
  6. Valacyclovir34 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

The practice group's MIPS final score for 2023 (Medicare payment program): 94.9 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualitynot scored (reweighted)
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%94.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,311.31

62 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 10,250 providers of this specialty with any payment received $8,544.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Carol Alonso$1,311.31
  2. Specialty average$8,544.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Dermatology Specialists OF Boulder PCWestminster, CO

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Carol Ann Alonso among 305 dermatology physician records in Colorado

Carol Ann Alonso, M.D. is one of 305 dermatology physician records with a practice address in Colorado. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 58% of them.

  • NPI issued2010 · 58% of these records are older, 40% newer
  • In a Medicare fileYes · 86% of these records are
  • In the CMS Doctors and Clinicians fileYes · 78% of these records are
  • Graduated2006 · median 2007 among the 238 with a school on file
  • Record last updated2022 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatology Physician providers in Colorado

There are 305 dermatology physician records in Colorado.

The 8 dermatology physician records with the nearest ZIP codes

  1. Arelis Burgos, MDWestminster, CO 802341609865427
  2. Courtney Remington, MDNorthglenn, CO 802331093381170
  3. Jena Sleiman, PA-CNorthglenn, CO 802331437566551
  4. William Bowman, MDDenver, CO 802311013076108
  5. Lindsey BroussardDenver, CO 802371679006597
  6. Daniel CallaghanDenver, CO 802371629496872
  7. Elizabeth Robinson, M.D.Denver, CO 802371245625763
  8. Harleen Arora, MDDenver, CO 802301205332764

Common questions

What is Carol Ann Alonso, M.D.'s NPI number?

Carol Ann Alonso, M.D.'s National Provider Identifier (NPI) is 1386962256, issued on May 17, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Carol Ann Alonso, M.D. located?

The NPPES record lists a practice address at 905 W 124TH Ave Ste 170, Westminster, CO, 80234. Phone: (303) 442-6647. Providers update this record themselves, so call before visiting.

How can I verify Carol Ann Alonso, M.D.'s license?

Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Carol Ann Alonso, M.D. prescribe under Medicare Part D?

In 2024, Carol Ann Alonso, M.D. had 710 Medicare Part D claims for 283 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.

What is Carol Ann Alonso, M.D.'s MIPS final score?

The 2023 MIPS final score is 94.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.