NPPES file of Aug 9, 2026

Derek B. Carpenter, PA-C

Medical Physician Assistant · Casa Grande, AZ

Derek B. Carpenter, PA-C is a medical physician assistant with a practice address in Casa Grande, Arizona, and NPI 1114320959, issued on Oct 8, 2014. Check the license (Arizona 5816, 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
1114320959
Name
Derek B. Carpenter
Credential
PA-C
Primary taxonomy
Medical Physician Assistant 363AM0700X
License number
5816 AZ
Self-reported in NPPES; status is on the state search
Practice location
865 N Arizola RD, Casa Grande, AZ 85122
Phone
(520) 836-3446
Enumerated
Oct 8, 2014
Record last updated
May 18, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150126001871); 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 865 N Arizola RD

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

  1. Heidi Abersfeller, PA CPhysician Assistant1356379754
  2. Caroline Adrian, PHARMDPharmacist1558080945
  3. Ivey Agee Wainwright, D.D.SGeneral Practice Dentistry1316326929
  4. Alonzo Alfred, LCPCProfessional Counselor1861642282
  5. Alejandra Arredondo, PHARM.D.Pharmacist1689250581
  6. Jeffrey Asman, PHARMDPharmacist1215538533

Verify Derek B. Carpenter 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 5816
    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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7.6 times the Medicare Part D claims of the average medical physician assistant in 2024

8,739 Medicare Part D claims for 976 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. Derek Carpenter8,739
  2. Specialty average1,148

Most prescribed

  1. Atorvastatin Calcium576 claims
  2. Levothyroxine Sodium411 claims
  3. Lisinopril382 claims
  4. Amlodipine Besylate353 claims
  5. Losartan Potassium306 claims
  6. Metformin Hcl256 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: $124.94

6 payments; by number, the most common kind was food and beverage; the largest payer was Dexcom, Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Derek Carpenter$124.94
  2. Specialty average$1,055.00

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. Sun Life Family Health Center IncMesa, AZ

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

Derek B. Carpenter among 996 medical physician assistant records in Arizona

Derek B. Carpenter, PA-C is one of 996 medical physician assistant records with a practice address in Arizona. 75% 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 59% of them.

  • NPI issued2014 · 59% of these records are older, 37% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 54% of these records are
  • Graduated2014 · median 2012 among the 541 with a school on file
  • Record last updated2018 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363AM0700X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Physician Assistant providers in Arizona

There are 996 medical physician assistant records in Arizona.

The 8 medical physician assistant records with the nearest ZIP codes

  1. Russell JacksonCasa Grande, AZ 851221699322578
  2. Zachary Kopecky, PA-CCasa Grande, AZ 851221730859992
  3. Aaron Newton, PA-CCasa Grande, AZ 851221114325289
  4. Robert Seals, PA-CCasa Grande, AZ 851221184654816
  5. Savannah Walker, MPASCasa Grande, AZ 851221134804925
  6. Alivia WieselerCasa Grande, AZ 851221588043475
  7. Tayler Bitter, PAApache Junction, AZ 851201811516784
  8. Morse Lawrence, P.A.-CApache Junction, AZ 851201619915899

Common questions

What is Derek B. Carpenter, PA-C's NPI number?

Derek B. Carpenter, PA-C's National Provider Identifier (NPI) is 1114320959, issued on Oct 8, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Derek B. Carpenter, PA-C located?

The NPPES record lists a practice address at 865 N Arizola RD, Casa Grande, AZ, 85122. Phone: (520) 836-3446. Providers update this record themselves, so call before visiting.

How can I verify Derek B. Carpenter, PA-C's license?

NPPES lists Arizona license number 5816, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Derek B. Carpenter, PA-C prescribe under Medicare Part D?

In 2024, Derek B. Carpenter, PA-C had 8,739 Medicare Part D claims for 976 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.