NPPES file of Aug 9, 2026

Nathan Cook, PAC

Physician Assistant · Gilbert, AZ

Nathan Cook, PAC is a physician assistant with a practice address in Gilbert, Arizona, and NPI 1629479621, issued on Sep 9, 2014. Check the license (Arizona 5789, as entered in NPPES) with the Arizona 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
1629479621
Name
Nathan Cook
Credential
PAC
Primary taxonomy
Physician Assistant 363A00000X
License number
5789 AZ
Self-reported in NPPES; status is on the state search
Practice location
890 W Elliot RD, Gilbert, AZ 85233
Phone
(480) 654-5661
Enumerated
Sep 9, 2014
Record last updated
Aug 19, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(480) 654-5663
Medicare enrollment
Enrolled (PECOS I20141030002677); 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 890 W Elliot RD

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

  1. Gregory Best, FNPNurse Practitioner1407246689
  2. Michele Bichko, CRNPFamily Nurse Practitioner1336475185
  3. Steven De Francis, PA-CPhysician Assistant1295059632
  4. Jeffrey Flack, PA-C, ATCPhysician Assistant1275855231
  5. Jami Hagler, PA-CPhysician Assistant1053627158
  6. Whitney Harrison-Birmingham, PA-CPhysician Assistant1053733741

Verify Nathan Cook in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 5789
    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 Arizona 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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73% fewer Medicare Part D claims than the average physician assistant in 2024

224 Medicare Part D claims for 125 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Nathan Cook224
  2. Specialty average830

Most prescribed

  1. Naproxen67 claims
  2. Tizanidine Hcl22 claims
  3. Cephalexin20 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: $18.33

1 payment: food and beverage; the largest payer was Ferring Pharmaceuticals Inc. 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. Nathan Cook$18.33
  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.

Bills Medicare through one group practice

  1. City OF Hope Medical Group OF Arizona LLCGoodyear, AZ

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

Nathan Cook among 3,666 physician assistant records in Arizona

Nathan Cook, PAC is one of 3,666 physician assistant records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 34% of them.

  • NPI issued2014 · 34% of these records are older, 62% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2014 · median 2018 among the 2,207 with a school on file
  • Record last updated2015 · 35% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

237 physician assistant records list a practice address in Gilbert

They are 237 of the 5,802 NPPES records with a practice address in Gilbert, and 3,666 physician assistant records in Arizona.

The 8 physician assistant records with the nearest ZIP codes

  1. James AndersonGilbert, AZ 852331184959744
  2. Steven De Francis, PA-CGilbert, AZ 852331295059632
  3. Jeffrey Flack, PA-C, ATCGilbert, AZ 852331275855231
  4. Jami Hagler, PA-CGilbert, AZ 852331053627158
  5. Tara Iacono, RPA-CGilbert, AZ 852331437308384
  6. Arthur Johnson, PA-CGilbert, AZ 852331104880830
  7. Allison Kaplan, PA-CGilbert, AZ 852331447534201
  8. John-David Michels, PA-CGilbert, AZ 852331376695445

Common questions

What is Nathan Cook, PAC's NPI number?

Nathan Cook, PAC's National Provider Identifier (NPI) is 1629479621, issued on Sep 9, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Nathan Cook, PAC located?

The NPPES record lists a practice address at 890 W Elliot RD, Gilbert, AZ, 85233. Phone: (480) 654-5661. Providers update this record themselves, so call before visiting.

How can I verify Nathan Cook, PAC's license?

NPPES lists Arizona license number 5789, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Nathan Cook, PAC prescribe under Medicare Part D?

In 2024, Nathan Cook, PAC had 224 Medicare Part D claims for 125 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.