Dr. Gregory L. Miller, DO

  • Phoenix, AZ
  • Internist
NPI1821040783PAC ID0547281230
Medicare services, 2024
418
Medicare patients, 2024
131
Part D claims, 2024
6,263
Hospital affiliations
2
Medical groups
8
Practice address
3720 E La Salle St, Phoenix, AZ 85040
Practice phone
Call (480) 618-0945
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Oak Street Health Physicians Group of Arizona

Phoenix, Arizona

See all 14 affiliations

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Dr. Gregory L. Miller is an internist in Phoenix, Arizona

Dr. Miller practices at Oak Street Health Physicians Group of Arizona in Phoenix, Arizona.

Dr. Miller's NPI, 1821040783, was assigned on May 17, 2006. Dr. Miller graduated from Ohio University, College of Osteopathic Medicine in 1984. Dr. Miller holds Arizona license 4005.

NPI and contact details
Medicare PAC ID
0547281230
NPI enumeration date
May 17, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(480) 618-0945
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
68
Medical school graduation
1984

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Gregory L. Miller practices at Oak Street Health Physicians Group of Arizona in Phoenix, Arizona

Dr. Miller's primary practice is Oak Street Health Physicians Group of Arizona, at 3720 E La Salle St, Phoenix, AZ 85040 in Maricopa County. The practice phone is (480) 618-0945.

  • Oak Street Health Physicians Group of Arizona
    3720 E La Salle St, Phoenix, AZ 85040 · Maricopa CountyPhone(480) 618-0945

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Gregory L. Miller is affiliated with 6 sites of care and 8 medical groups

Dr. Miller's primary practice is Oak Street Health Physicians Group of Arizona in Phoenix, Arizona. Dr. Miller is also affiliated with Tucson Medical Center. The medical group on file is Sound Physicians. Dmand AI also links Dr. Miller to 1 more hospital, 7 medical groups, 2 home health agencies and 1 group practice or clinic, each named with a free account.

See all 14 affiliations for Dr. Miller

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Gregory L. Miller's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Miller practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Oak Street Health Physicians Group of ArizonaAvailable with a free account
+5 more sites and 7 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Gregory L. Miller is one of 2,420 internists in Arizona

Internal medicine is Dr. Miller's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dmand AI has Dr. Miller's licenses on file in 4 states: Arizona, New Mexico, Ohio and Wisconsin.

Specialties and state licenses

  • Internal medicine, ArizonaPrimaryLicense 4005 · taxonomy 207R00000X
  • New Mexico licenseLicense 4005
  • Emergency medicine, OhioLicense 34-003773 · taxonomy 207P00000X
  • Wisconsin licenseLicense 69191

Internists near Dr. Miller

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Gregory L. Miller billed Medicare for 418 services in 2024

CMS data shows 418 Medicare services from Dr. Miller across 4 procedure codes in 2024, for 131 Medicare patients. Medicare paid $21,707 for them. Every service was in an office.

Medicare services, 2024418
Medicare patients131
Paid by Medicare$21,707
Procedure codes4

Dr. Miller's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 3242024: 3133%
Other services
2023: 652024: 8023%
Lab and pathology
2023: 02024: 25
Tests and treatments
2023: 122024: 0100%

Dr. Miller compared with the Arizona median for internists, 2024

  • Dr. Miller
  • Arizona median
Medicare services
418vs 47612% below
Medicare patients
131vs 20536% below
Part D claims
5,573vs 26021.4 times

Medians across 2,300 internists in Arizona with Dmand AI profiles that report each measure.

Dr. Miller's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Miller

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Gregory L. Miller treated 131 Medicare patients in 2024, average age 75

CMS counts 131 Medicare patients who saw Dr. Miller in 2024. The largest group is 65 to 74, with 64 patients. 75% of them have high cholesterol, and 74% have high blood pressure. Their average risk score is 1.13, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Miller's median patient age at 74, with 55% women.

Medicare patients, 2024131
Average age75
Average risk score1.13

Dr. Miller's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Miller's Medicare patients by sex, 2024

  • Women6852%
  • Men6348%

Chronic conditions among Dr. Miller's Medicare patients, 2024

  1. High cholesterol75%
  2. High blood pressure74%
  3. Arthritis50%
  4. Mood disorders28%
  5. Diabetes27%
  6. Heart failure27%
  7. Chronic kidney disease26%
  8. Depression26%

Share of Medicare patients with each condition. A patient can have several.

Dr. Miller's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women55%
  • Men44%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Gregory L. Miller wrote 6,263 Medicare Part D claims in 2024

In 2024, Dr. Miller wrote 6,263 Medicare Part D claims for 495 patients. 88% of them were for generic drugs. CMS names the drug for 5,573 of them, across 108 drugs with 11 or more claims each, at $444,620 in total drug cost. In 2023, CMS named 1,687 claims across 54 drugs.

Part D claims, 20246,263
Drugs named by CMS108
Total drug cost$444,620
Part D patients495

Dr. Miller's Part D claims by kind of drug, 2024

  • Generic5,526 claims88%
  • Brand-name709 claims11%
  • Other28 claims0%

Dr. Miller's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Miller's Part D claims, 2024

  • Opioids5%288 of 6,263 claims
  • Antibiotics2%94 of 6,263 claims
  • Antipsychotics, patients 65 and over0%18 of 6,263 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,6872024: 5,573230%

Drugs named by CMS: 108 in 2024, 54 in 2023.

See all prescribing by Dr. Miller

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Gregory L. Miller takes part in Medicare

Dr. Miller accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Gregory L. Miller graduated from Ohio University, College of Osteopathic Medicine

Dr. Miller graduated from Ohio University, College of Osteopathic Medicine in 1984.

  1. Medical schoolOhio University, College of Osteopathic Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Gregory L. Miller's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Gregory L. Miller

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Gregory L. Miller's NPI number?

Dr. Gregory L. Miller's NPI number is 1821040783. It was assigned on May 17, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Gregory L. Miller?

Dr. Gregory L. Miller is an internist in Phoenix, Arizona. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Gregory L. Miller practice?

Dr. Miller practices at 3720 E La Salle St, Phoenix, AZ 85040. Dr. Miller's primary practice is Oak Street Health Physicians Group of Arizona in Phoenix, Arizona. Dmand AI also links Dr. Miller to 1 hospital, 7 medical groups, 2 home health agencies and 1 group practice or clinic.

What is Dr. Gregory L. Miller's office phone number?

The practice phone on file for Dr. Miller is (480) 618-0945.

What is Dr. Gregory L. Miller's medical license number?

Dr. Miller holds Arizona license 4005, one of the licenses on file in 4 states.

Which states has Dr. Gregory L. Miller been licensed in?

Dmand AI has state licenses on file for Dr. Miller in Arizona, New Mexico, Ohio and Wisconsin.

Which hospitals is Dr. Gregory L. Miller affiliated with?

Dr. Miller is affiliated with Tucson Medical Center. Dmand AI links Dr. Miller to 1 more hospital.

What medical group is Dr. Gregory L. Miller part of?

Dr. Miller is linked to Sound Physicians. Dmand AI links Dr. Miller to 7 more medical groups.

Does Dr. Gregory L. Miller accept Medicare?

Yes. CMS data shows Dr. Miller billed Medicare for 418 services in 2024, and Dr. Miller accepts Medicare assignment.

How many Medicare patients does Dr. Gregory L. Miller see?

CMS counts 131 Medicare patients who saw Dr. Miller in 2024, with an average age of 75.

Show 4 more questionsShow fewer questions

What services does Dr. Gregory L. Miller bill to Medicare?

In 2024, Dr. Miller's most billed Medicare services were office visit, established patient (99212), medicare service (G0439) and office visit, new patient (99202).

Where did Dr. Gregory L. Miller go to medical school?

Dr. Miller graduated from Ohio University, College of Osteopathic Medicine in 1984.

What drugs does Dr. Gregory L. Miller prescribe most?

In 2024 Medicare Part D data, Dr. Miller's most prescribed drugs by claims were Atorvastatin Calcium, Rosuvastatin Calcium and Amlodipine Besylate.

How long has Dr. Gregory L. Miller been practicing?

Dr. Miller graduated from medical school in 1984, 42 years ago.

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