NPPES file of Aug 9, 2026

Gregory L. Miller, DO

Internal Medicine Physician · Tucson, AZ

Gregory L. Miller, DO is an internal medicine physician with a practice address in Tucson, Arizona, and NPI 1821040783, issued on May 17, 2006. Check the license (Arizona 4005, 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
1821040783
Name
Gregory L. Miller
Credential
DO
Primary taxonomy
Internal Medicine Physician 207R00000X
License numbers
4005 AZ
4005 NM
34-003773 OH
69191 WI
Self-reported in NPPES; status is on the state search
Practice location
7040 E Golf Links RD, Tucson, AZ 85730
Phone
(520) 200-6709
Enumerated
May 17, 2006
Record last updated
Sep 18, 2025
Fax
(520) 532-1602
Medicaid ID
064-0944 OH
Medicare enrollment
Enrolled (PECOS I20060706000065); accepts Medicare assignment
Medical or professional school
Ohio University, College Of Osteopathic Medicine, 1984
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 7040 E Golf Links RD

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

  1. Susan Cardona, FNPFamily Nurse Practitioner1487314829
  2. Vanica Caswell, RNFamily Nurse Practitioner1982985818
  3. Jessica Kerr, PA-CPhysician Assistant1740426790

Verify Gregory L. Miller in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 4005
    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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97% more Medicare Part D claims than the average internal medicine physician in 2024

6,263 Medicare Part D claims for 495 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 288 claims were for opioids.

  1. Gregory Miller6,263
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium320 claims
  2. Rosuvastatin Calcium298 claims
  3. Amlodipine Besylate275 claims
  4. Levothyroxine Sodium269 claims
  5. Lisinopril249 claims
  6. Trazodone Hcl184 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 one group practice

  1. Oak Street Health Physicians Group OF Arizona PLLCTucson, AZ

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

Gregory L. Miller among 2,853 internal medicine physician records in Arizona

Gregory L. Miller, DO 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
  • Graduated1984 · 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).

651 internal medicine physician records list a practice address in Tucson

They are 651 of the 18,788 NPPES records with a practice address in Tucson, and 2,853 internal medicine physician records in Arizona.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Nneka Anuligo, M.D.Tucson, AZ 857301245438878
  2. Dina Torres-Millikin, M.D.Tucson, AZ 857301457383531
  3. Kathy Drinkwater, DOTucson, AZ 857241184287328
  4. Tyler Gloe, DOTucson, AZ 857241174261697
  5. Amer Mohammad Hasan Hammad, M.D.Tucson, AZ 857241154050789
  6. Audriana Hurbon, MDTucson, AZ 857241740743384
  7. Salil Kalarn, DOTucson, AZ 857241942876149
  8. Jocelyn Liu, MDTucson, AZ 857241750213112

Common questions

What is Gregory L. Miller, DO's NPI number?

Gregory L. Miller, DO's National Provider Identifier (NPI) is 1821040783, issued on May 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Gregory L. Miller, DO located?

The NPPES record lists a practice address at 7040 E Golf Links RD, Tucson, AZ, 85730. Phone: (520) 200-6709. Providers update this record themselves, so call before visiting.

How can I verify Gregory L. Miller, DO's license?

NPPES lists Arizona license number 4005, 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 Gregory L. Miller, DO prescribe under Medicare Part D?

In 2024, Gregory L. Miller, DO had 6,263 Medicare Part D claims for 495 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.