Gregory Miller, DO
NPI 1821040783 · Internal Medicine Physician · Tucson, AZ
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Miller, DO is a Internal Medicine Physician provider in Tucson, AZ (NPI 1821040783).
Provider details
- NPI number
- 1821040783
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- 4005 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
418 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 275 | $55 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 80 | $125 |
| New Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 15 Minutes Or More99202 | 38 | $70 |
| Hemoglobin A1c Level83036 | 25 | $10 |
Typical Medicare-allowed amounts for these services range $10–$125 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 320 | 106 |
| Rosuvastatin Calcium | 298 | 95 |
| Amlodipine Besylate | 275 | 88 |
| Levothyroxine Sodium | 269 | 84 |
| Lisinopril | 249 | 86 |
| Trazodone Hcl | 184 | 60 |
| Losartan Potassium |
Practice location
Mailing address
Additional practice locations (1)
- 8054 Lea CtHolland, OH 43528-8042Phone: (419) 868-5596Fax: (419) 868-5597
Registry dates
- Enumerated
- 2006-05-17
- Last updated
- 2025-09-18
- Certified
- 2025-09-18
Frequently asked questions
- What is Gregory Miller's NPI number?
- Gregory Miller's National Provider Identifier (NPI) is 1821040783, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Miller's specialty?
- Gregory Miller is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gregory Miller located?
- Gregory Miller's practice location on file with NPPES is 7040 E Golf Links Rd, Tucson, AZ 85730-1000.
- What is Gregory Miller's phone number?
- The practice phone number listed in the NPPES registry for Gregory Miller is (520) 200-6709.
- Does Gregory Miller accept Medicare?
- Gregory Miller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Miller's NPI active?
- Yes — Gregory Miller's NPI (1821040783) is active in the NPPES registry as of the last update on 2025-09-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.