NPPES file of Aug 9, 2026

Jill E. Cook, PA

Physician Assistant · Denver, CO

Jill E. Cook, PA is a physician assistant with a practice address in Denver, Colorado, and NPI 1841487253, issued on Sep 29, 2007. Check the license (Colorado PA-2504, 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
1841487253
Name
Jill E. Cook
Credential
PA
Primary taxonomy
Physician Assistant 363A00000X
License number
PA-2504 CO
Self-reported in NPPES; status is on the state search
Practice location
2525 S Downing St, Denver, CO 80210
Phone
(303) 778-1955
Enumerated
Sep 29, 2007
Record last updated
Apr 23, 2009 (not updated in 17 years: call before relying on the address or phone)
Medicaid ID
12553310 CO
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 2525 S Downing St

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

  1. Benjamin Alderfer, M.D.Psychiatry Physician1174620025
  2. Gwen Allen, RNMedical-Surgical Registered Nurse1285412239
  3. Madison Bassett, AGACNP-BCNurse Practitioner1548830466
  4. Connie Bassham, RN, CNSPsychiatric/Mental Health Registered Nurse1811134430
  5. John Batiuchok, MDPsychiatry Physician1184637761
  6. Jessica Batten, PAPhysician Assistant1235620402

Verify Jill E. Cook 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 PA-2504
    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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78% fewer Medicare Part D claims than the average physician assistant in 2024

179 Medicare Part D claims for 129 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims.

  1. Jill Cook179
  2. Specialty average830

Most prescribed

  1. Methocarbamol23 claims
  2. Amoxicillin-Clavulanate Potass21 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.

Industry payments in 2024: $69.26

3 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jill Cook$69.26
  2. Specialty average$841.65

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

Jill E. Cook among 3,767 physician assistant records in Colorado

Jill E. Cook, PA is one of 3,767 physician assistant records with a practice address in Colorado. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 17% of them.

  • NPI issued2007 · 17% of these records are older, 76% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileNo · 62% of these records are
  • Record last updated2009 · 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 363A00000X and a Colorado practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

540 physician assistant records list a practice address in Denver

They are 540 of the 25,068 NPPES records with a practice address in Denver, and 3,767 physician assistant records in Colorado.

The 8 physician assistant records with the nearest ZIP codes

  1. Timothy Abbott, PA-CDenver, CO 802101023152212
  2. James Boyle, PA-CDenver, CO 802101376534768
  3. Raili Donnelly, PA-CDenver, CO 802101124213632
  4. Gregory Engelken, PA-CDenver, CO 802101083746986
  5. Jason Forsythe, PA-CDenver, CO 802101487645867
  6. Mark Laudermilk, PADenver, CO 802101578602496
  7. Karla MaharjanDenver, CO 802101215126982
  8. Meghan Nakamura, PADenver, CO 802101821177007

Common questions

What is Jill E. Cook, PA's NPI number?

Jill E. Cook, PA's National Provider Identifier (NPI) is 1841487253, issued on Sep 29, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Jill E. Cook, PA located?

The NPPES record lists a practice address at 2525 S Downing St, Denver, CO, 80210. Phone: (303) 778-1955. Providers update this record themselves, so call before visiting.

How can I verify Jill E. Cook, PA's license?

NPPES lists Colorado license number PA-2504, as entered by the provider. Search the Colorado board that licenses this profession; the NPPES record confirms identity only.

How much does Jill E. Cook, PA prescribe under Medicare Part D?

In 2024, Jill E. Cook, PA had 179 Medicare Part D claims for 129 beneficiaries; the average among physician assistant prescribers was 830. 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.