NPPES file of Aug 9, 2026

Peter Alexander Ziegler, M.D.

Family Medicine Physician · Tucson, AZ

Peter Alexander Ziegler, M.D. is a family medicine physician with a practice address in Tucson, Arizona, and NPI 1225128135, issued on Oct 13, 2006. Check the license (Arizona 31522, 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
1225128135
Name
Peter Alexander Ziegler
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
31522 AZ
Self-reported in NPPES; status is on the state search
Practice location
160 N Stone Ave, Tucson, AZ 85701
Phone
(520) 884-7131
Enumerated
Oct 13, 2006
Record last updated
Jul 25, 2024
Fax
(520) 202-1036
Medicaid ID
407420 AZ
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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Verify Peter Alexander Ziegler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 31522
    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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98% fewer Medicare Part D claims than the average family medicine physician in 2024

78 Medicare Part D claims for 16 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Peter Ziegler78
  2. Specialty average3,544

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.

Peter Alexander Ziegler among 3,119 family medicine physician records in Arizona

Peter Alexander Ziegler, M.D. is one of 3,119 family 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 54% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 57% of these records are
  • Record last updated2024 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

554 family medicine physician records list a practice address in Tucson

They are 554 of the 18,788 NPPES records with a practice address in Tucson, and 3,119 family medicine physician records in Arizona.

The 8 family medicine physician records with the nearest ZIP codes

  1. James McGlamery, M.D.Tucson, AZ 857011558390278
  2. Raymond Bakotic, D.O.Tucson, AZ 857041285613216
  3. Barbara Caldwell, M.D.Tucson, AZ 857041861475345
  4. John Carmichael, MDTucson, AZ 857041881675254
  5. Susan Courtney, MDTucson, AZ 857041700840352
  6. Steven Downing, MDTucson, AZ 857041336123199
  7. William Inboden, D.O.Tucson, AZ 857041528043395
  8. David Los, DOTucson, AZ 857041598741720

Common questions

What is Peter Alexander Ziegler, M.D.'s NPI number?

Peter Alexander Ziegler, M.D.'s National Provider Identifier (NPI) is 1225128135, issued on Oct 13, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Peter Alexander Ziegler, M.D. located?

The NPPES record lists a practice address at 160 N Stone Ave, Tucson, AZ, 85701. Phone: (520) 884-7131. Providers update this record themselves, so call before visiting.

How can I verify Peter Alexander Ziegler, M.D.'s license?

NPPES lists Arizona license number 31522, 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 Peter Alexander Ziegler, M.D. prescribe under Medicare Part D?

In 2024, Peter Alexander Ziegler, M.D. had 78 Medicare Part D claims for 16 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.