NPPES file of Aug 9, 2026

Kenneth R. Petersen, MD

Internal Medicine Physician · Glendale, AZ

Kenneth R. Petersen, MD is an internal medicine physician with a practice address in Glendale, Arizona, and NPI 1912017104, issued on Aug 30, 2006. Check the license (Arizona 64419, as entered in NPPES) on the Arizona Medical Board; 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
1912017104
Name
Kenneth R. Petersen
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
64419 AZ
Self-reported in NPPES; status is on the state search
Practice location
7701 W Aspera Blvd, Glendale, AZ 85308
Phone
(623) 465-6060
Enumerated
Aug 30, 2006
Record last updated
Oct 1, 2025
Fax
(623) 242-5833
Medicare enrollment
Enrolled (PECOS I20211129002333); accepts Medicare assignment
Medical or professional school
University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1983
Telehealth
Offers telehealth (CMS)
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 7701 W Aspera Blvd

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

  1. Amita Alexander, MDFamily Medicine Physician1730344508
  2. Ryan Bieberle, MDObstetrics & Gynecology Physician1295228724
  3. Tres Byers, FNP-CFamily Nurse Practitioner1760250369
  4. Claudia CopreanFamily Nurse Practitioner1285468587
  5. Krystle Dunn, MSN, APRN, FNP-CFamily Medicine Physician1144973405
  6. Helen HallSurgery Physician1679908768

Verify Kenneth R. Petersen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 64419
    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
Open 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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20% more Medicare Part D claims than the average internal medicine physician in 2024

3,803 Medicare Part D claims for 379 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 53 claims were for opioids.

  1. Kenneth Petersen3,803
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium321 claims
  2. Lisinopril244 claims
  3. Levothyroxine Sodium213 claims
  4. Amlodipine Besylate153 claims
  5. Metformin Hcl110 claims
  6. Rosuvastatin Calcium101 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 2 group practices

  1. Banner Primary Care Physicians Arizona LLCSun City, AZ
  2. Bhsm Rehabilitation LLCPeoria, AZ

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

Kenneth R. Petersen among 2,853 internal medicine physician records in Arizona

Kenneth R. Petersen, MD is one of 2,853 internal medicine physician 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 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 55% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1983 · median 2003 among the 1,643 with a school on file
  • Record last updated2025 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

90 internal medicine physician records list a practice address in Glendale

They are 90 of the 5,447 NPPES records with a practice address in Glendale, and 2,853 internal medicine physician records in Arizona.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Hala Abubakr, M.D.Glendale, AZ 853081780676437
  2. Solomon Amdemariam, M.D.Glendale, AZ 853081730130469
  3. James Ames, MDGlendale, AZ 853081811998933
  4. Michael Berman, DOGlendale, AZ 853081285635078
  5. Pinakin Bhakta, M.D.Glendale, AZ 853081760438618
  6. Michael Castro, MDGlendale, AZ 853081639170293
  7. Gregory Gargiulo, D.O.Glendale, AZ 853081043248834
  8. Khwaja Haque, MDGlendale, AZ 853081538155379

Common questions

What is Kenneth R. Petersen, MD's NPI number?

Kenneth R. Petersen, MD's National Provider Identifier (NPI) is 1912017104, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kenneth R. Petersen, MD located?

The NPPES record lists a practice address at 7701 W Aspera Blvd, Glendale, AZ, 85308. Phone: (623) 465-6060. Providers update this record themselves, so call before visiting.

How can I verify Kenneth R. Petersen, MD's license?

NPPES lists Arizona license number 64419, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Kenneth R. Petersen, MD prescribe under Medicare Part D?

In 2024, Kenneth R. Petersen, MD had 3,803 Medicare Part D claims for 379 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.