NPPES file of Aug 9, 2026

Specialist in Colorado

1,105 NPPES records list specialist with a practice address in Colorado, 19 per 100,000 residents, the 8th highest rate of 51. Denver and Aurora have the most; each record links to the provider's NPI and the Colorado license search. Page 23 of 23.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 174400000X · method

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Denver has the most, 228

  1. Denver228
  2. Aurora96
  3. Colorado Springs87
  4. Fort Collins86
  5. Boulder44

Specialist records in Colorado

  1. Sandra Zila-Eivins, M.D.Steamboat Springs, CO 804871972509909
  2. Tedi Zimbeck, CMTLakewood, CO 802321811012420
  3. Anita Zimmerman, CMTDenver, CO 802381124201363
  4. Stephen Zumbrun, MDGreeley, CO 806311851342943
  5. Christine ZwartBoulder, CO 803011336343086

Source: CMS NPPES, primary taxonomy 174400000X: records by practice city and the list of records, file of Aug 9, 2026.

Colorado ranks 8 of 51 per resident

  1. Oregon26
  2. Hawaii24
  3. District of Columbia22
  4. Colorado19
  5. New Mexico19
  6. Rhode Island18
  7. 50 states and D.C.18

Source: CMS NPPES, primary taxonomy 174400000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

12.2% of these records appear in a Medicare file, against 17.0% nationally

A Medicare file here is Part D prescribing (2024), a MIPS score (2023), an Open Payments record (2024) or Medicare group billing (CMS Doctors and Clinicians). A record outside them may still see patients: these files cover Medicare only.

  1. Colorado12.2%
  2. United States17.0%

Specialist records in Colorado, measured

  • In a Medicare file135 of 1,105 · 12.2% here, 17.0% nationally
  • In the CMS Doctors and Clinicians file86 · 7.8% here, 11.1% nationally
  • Not updated in five years or more978 · 88.5% here, 77.3% nationally
  • Median graduation year1993 · the 86 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 174400000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

1,105 NPPES records list specialist (174400000X) as their primary taxonomy with a practice address in Colorado: 19 per 100,000 residents against 18 nationally (50 states and D.C.). Denver has 228 of them (21%).

A record is a registration a provider made and keeps up to date: it shows neither that the provider is licensed nor that they still practice there. The state's own license search is the check.

States with a similar number

  1. Massachusetts1,096
  2. Oregon1,085
  3. Illinois1,154
  4. New Hampshire1,010

States with a similar rate per 100,000

  1. New Mexico18.8
  2. Rhode Island18.1
  3. Puerto Rico17.9
  4. Maine17.8

The largest states

  1. New York22,636
  2. California5,749
  3. Florida2,685
  4. Washington2,609
  5. Pennsylvania2,031

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy; 2023 Census population estimates. A registry record 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.