NPPES file of Aug 9, 2026

Registered Nurse in Colorado

4,610 NPPES records list registered nurse with a practice address in Colorado, 78 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 51 of 93.

CMS NPPES registry, file of Aug 9, 2026; 2023 Census estimates · NUCC 163W00000X · 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, 1,070

  1. Denver1,070
  2. Aurora540
  3. Colorado Springs345
  4. Greenwood Village218
  5. Fort Collins175

Registered Nurse records in Colorado

  1. Carolyn Marsters, R.NPueblo, CO 810041285867788
  2. Kelly Marston, RNCortez, CO 813211558001800
  3. Lauren Martell, RNFort Collins, CO 805241457724510
  4. Andrea Martell-Hernandez, RN,BSNLone Tree, CO 801241528523354
  5. Ashley Martella, RNFort Collins, CO 805211093233678
  6. Amanda MartensDenver, CO 802221063780039
  7. Alexander Martin, RNBuckley Afb, CO 800111326353335
  8. Amber MartinLittleton, CO 801281801505516
  9. Angela MartinLittleton, CO 801221154532711
  10. Johanna Martin, RNDurango, CO 813031285193615
  11. Laura MartinLoveland, CO 805381679396428
  12. Leslie Martin, RNDenver, CO 802111518393578
  13. Lorena Martin, RNLafayette, CO 800261912141342
  14. Margaret MartinDenver, CO 802041770087348
  15. Ruth Martin, MSN,RNColorado Springs, CO 809051699027110
  16. Shaunna MartinGrand Junction, CO 815041508727397
  17. Alicia Martinez, RNAurora, CO 800141194278721
  18. Annamae MartinezDenver, CO 802201548677529
  19. Brenda Martinez, R.N.Littleton, CO 801271821132606
  20. Dana Martinez, RNGrand Junction, CO 815011639520703
  21. Danny MartinezPueblo, CO 810011033740600
  22. Dennis Martinez, RNPueblo, CO 810041114326907
  23. Jessica MartinezBroomfield, CO 800201104460211
  24. Jo Anna MartinezPueblo, CO 810011073296414
  25. Katelyn MartinezLochbuie, CO 806031023836806
  26. Luis Martinez, R.N.Denver, CO 802051861899890
  27. Maryanne Martinez, R.N.San Luis, CO 811521679832117
  28. Michael Martinez, RNFort Collins, CO 805251477315869
  29. Rana MartinezPueblo, CO 810011730727983
  30. Rose Martinez, RNDenver, CO 802051922294271
  31. Sarah Martinez, RNAurora, CO 800451760328660
  32. Shannon Martinez, RNWestminster, CO 800031164552915
  33. Vivian Martinez, RNFort Collins, CO 805241669106357
  34. Zandra MartinezLafayette, CO 800261235833807
  35. Jennifer Martino, RNParker, CO 801341477135861
  36. Claire Martone, RNDenver, CO 802051760108484
  37. Ryene Marugg, RNFort Collins, CO 805251568248128
  38. McKenna Marx, RNColorado Springs, CO 809151861243982
  39. Marie Masciotra, RN,MSNPueblo, CO 810041508009143
  40. Donna Mash, RNGreenwood Village, CO 801111609527290
  41. Jennifer MasonWindsor, CO 805501376366807
  42. Lisa Mason, RNGreenwood Village, CO 801111215491535
  43. Patricia MassariFort Collins, CO 805251437949757
  44. Yvette Massenburg, RN, BSNAurora, CO 800141073847281
  45. Stephanie MasseyLittleton, CO 801201508717257
  46. Catlin Masteller, RNFort Collins, CO 805251790537249
  47. David Matalas, RNLone Tree, CO 801241427737154
  48. Nomayi Matale-HerronAurora, CO 800451619569118
  49. Shonda MatayoGrand Junction, CO 815011891623567
  50. Marjorie Mateer, RNBoulder, CO 803041205123908

Source: CMS NPPES, primary taxonomy 163W00000X: records by practice city and the list of records, file of Aug 9, 2026.

Colorado ranks 8 of 51 per resident

  1. Delaware94
  2. South Dakota87
  3. Ohio82
  4. Colorado78
  5. Wisconsin78
  6. Rhode Island74
  7. 50 states and D.C.44

Source: CMS NPPES, primary taxonomy 163W00000X by practice state, file of Aug 9, 2026; records per 100,000 residents, 2023 Census estimates.

0.8% of these records appear in a Medicare file, against 1.5% 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. Colorado0.8%
  2. United States1.5%

Registered Nurse records in Colorado, measured

  • In a Medicare file38 of 4,610 · 0.8% here, 1.5% nationally
  • In the CMS Doctors and Clinicians file10 · 0.2% here, 1.0% nationally
  • Not updated in five years or more3,156 · 68.5% here, 57.2% nationally
  • Median graduation year2015 · the 10 records with a school on file

Source: CMS NPPES, file of Aug 9, 2026 (primary taxonomy 163W00000X); CMS Medicare Part D Prescribers 2024, MIPS 2023, Open Payments 2024 and Doctors and Clinicians, matched by NPI.

What the count covers

4,610 NPPES records list registered nurse (163W00000X) as their primary taxonomy with a practice address in Colorado: 78 per 100,000 residents against 44 nationally (50 states and D.C.). Denver has 1,070 of them (23%).

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. Wisconsin4,628
  2. Florida4,722
  3. Massachusetts4,985
  4. Pennsylvania5,372

States with a similar rate per 100,000

  1. Ohio81.9
  2. Rhode Island74.2
  3. New Mexico73.5
  4. Washington73.1

The largest states

  1. New York25,740
  2. California13,506
  3. Ohio9,656
  4. Texas8,921
  5. Washington5,708

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.