NPPES file of Aug 9, 2026

Chelsea Elizabeth Onksen, PA-C

Surgical Physician Assistant · Colorado Springs, CO

Chelsea Elizabeth Onksen, PA-C is a surgical physician assistant with a practice address in Colorado Springs, Colorado, and NPI 1477072304, issued on Sep 12, 2017. Check the license (Colorado PA0005111, as entered in NPPES) with the Colorado board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordNPPES file of Aug 9, 2026
1477072304
Name
Chelsea Elizabeth Onksen
Credential
PA-C
Primary taxonomy
Surgical Physician Assistant 363AS0400X
License number
PA0005111 CO
Self-reported in NPPES; status is on the state search
Practice location
2222 N Nevada Ave Ste 5017, Colorado Springs, CO 80907
Phone
(719) 434-4005
Enumerated
Sep 12, 2017
Record last updated
Apr 30, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(719) 632-1062
Medicare enrollment
Enrolled (PECOS I20210804001131); accepts Medicare assignment
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 2222 N Nevada Ave Ste 5017

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

  1. Amanda Erjavec, AGACNP-BCAcute Care Nurse Practitioner1942885793
  2. Clayton Lewis, M.DSurgery Physician1629364534
  3. Richard Malyszek, M.D.Surgery Physician1891739058
  4. Herman Peters, M.D.Surgical Oncology Physician1932546405
  5. Cristianna Ruple, PA-CSurgical Physician Assistant1902391956
  6. Christopher Taylor, MDColon & Rectal Surgery Physician1669834487

Verify Chelsea Elizabeth Onksen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Colorado board licenses this profession
    Search for license PA0005111
    Check 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
Find the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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92% fewer Medicare Part D claims than the average surgical physician assistant in 2024

23 Medicare Part D claims for 17 beneficiaries, against an average of 304 among the 10,174 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims. 13 claims were for opioids.

  1. Chelsea Onksen23
  2. Specialty average304

Most prescribed

  1. Oxycodone Hcl12 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.

Bills Medicare through one group practice

  1. Professional Services OF Holy CrossSilver Spring, MD

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

Chelsea Elizabeth Onksen among 699 surgical physician assistant records in Colorado

Chelsea Elizabeth Onksen, PA-C is one of 699 surgical physician assistant records with a practice address in Colorado. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 62% of them.

  • NPI issued2017 · 62% of these records are older, 34% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated2017 · median 2015 among the 511 with a school on file
  • Record last updated2018 · 40% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AS0400X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Surgical Physician Assistant providers in Colorado

There are 699 surgical physician assistant records in Colorado.

The 8 surgical physician assistant records with the nearest ZIP codes

  1. Emma Adams, PA-CColorado Springs, CO 809071841574050
  2. Matthew Burkholder, PAColorado Springs, CO 809071104216464
  3. Ashley Dickerson, PHYSICIAN ASSISTANTColorado Springs, CO 809071093434631
  4. Andrew Domer, PA-CColorado Springs, CO 809071841231230
  5. Jaelynn DunhamColorado Springs, CO 809071194518621
  6. Sondra Early, PA-CColorado Springs, CO 809071487792164
  7. Derrick Kooker, P.A.Colorado Springs, CO 809071851373526
  8. Cristianna Ruple, PA-CColorado Springs, CO 809071902391956

Common questions

What is Chelsea Elizabeth Onksen, PA-C's NPI number?

Chelsea Elizabeth Onksen, PA-C's National Provider Identifier (NPI) is 1477072304, issued on Sep 12, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Chelsea Elizabeth Onksen, PA-C located?

The NPPES record lists a practice address at 2222 N Nevada Ave Ste 5017, Colorado Springs, CO, 80907. Phone: (719) 434-4005. Providers update this record themselves, so call before visiting.

How can I verify Chelsea Elizabeth Onksen, PA-C's license?

NPPES lists Colorado license number PA0005111, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Chelsea Elizabeth Onksen, PA-C prescribe under Medicare Part D?

In 2024, Chelsea Elizabeth Onksen, PA-C had 23 Medicare Part D claims for 17 beneficiaries; the average among surgical physician assistant prescribers was 304. Part D covers Medicare prescriptions only.

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.