DR. GREGORY L MILLER DO
NPI 1821040783
Internal Medicine in Tucson, AZ
About Dr. Gregory L Miller Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GREGORY L MILLER DO (NPI 1821040783) is an individual internal medicine provider in Tucson, Arizona, licensed in Arizona (4005) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Holland, and is a graduate of Ohio University, College Of Osteopathic Medicine (1984).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Other Identifiers 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Gregory L Miller Do is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
9Medicare enrollment records show Gregory Miller reassigns Medicare billing to 9 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sierra Vista, AZ 85635
- Reassigned Medicare billing, Arizona enrollment
- 239 clinicians in this Medicare group
Maricopa, AZ 85139
- Reassigned Medicare billing, Arizona enrollment
- 159 clinicians in this Medicare group
Apache Junction, AZ 85120
- Reassigned Medicare billing, Arizona enrollment
- 93 clinicians in this Medicare group
Fountain Hills, AZ 85268
- Reassigned Medicare billing, Arizona enrollment
- 42 clinicians in this Medicare group
Fountain Hls, AZ 85268
- Reassigned Medicare billing, Arizona enrollment
- 32 clinicians in this Medicare group
Roseville, CA 95661
- Reassigned Medicare billing, Arizona enrollment
- 4 clinicians in this Medicare group
Roseville, CA 95661
- Reassigned Medicare billing, Arizona enrollment
- 7 clinicians in this Medicare group
Redwood Falls, MN 56283
- Reassigned Medicare billing, Minnesota enrollment
- 183 clinicians in this Medicare group
Spooner, WI 54801
- Reassigned Medicare billing, Wisconsin enrollment
- 62 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 85730 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Gregory Miller's NPI number?
The NPI number for Gregory Miller is 1821040783. It was assigned to this individual provider in the NPPES registry on May 17, 2006.
Where is Gregory Miller located?
Gregory Miller practices at 7040 E Golf Links Rd, Tucson, AZ 85730. The listed phone number is (520) 200-6709.
What is Gregory Miller's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Gregory Miller enrolled in Medicare?
Yes. Gregory Miller is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Gregory Miller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Gregory Miller reassigns Medicare benefits to 9 organizations: Sound Physicians Emergency Medicine Of Arizona, Inc. (Sierra Vista, AZ), Exceptional Physicians Group Arizona PLLC (Maricopa, AZ), Oak Street Health Physicians Group Of Arizona PLLC (Apache Junction, AZ), Fhmc Clinic (Fountain Hills, AZ), Fhmc Operating PC (Fountain Hls, AZ) and 4 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gregory Miller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Gregory Miller accept?
Health plans from CareSource (Common Ground Healthcare) list Gregory Miller as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Gregory Miller was last updated on September 18, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Gregory L Miller, DO · NPI 1821040783
Internal Medicine physician in Tucson, Arizona. Individual provider, active in the CMS NPPES registry since May 17, 2006.
## Identity
- **NPI:** 1821040783 (Entity type: Individual)
- **Enumerated:** May 17, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 4005 (Arizona)
- **Sole proprietor:** No
## Practice location
- **Address:** 7040 E GOLF LINKS RD, Tucson, AZ 85730-1000
- **Phone:** (520) 200-6709 · **Fax:** (520) 532-1602
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 9 organizations under Medicare reassignment (form CMS-855R): Sound Physicians Emergency Medicine Of Arizona, Inc. (NPI 1700328663, Sierra Vista, AZ); Exceptional Physicians Group Arizona PLLC (NPI 1447910229, Maricopa, AZ); Oak Street Health Physicians Group Of Arizona PLLC (NPI 1063083590, Apache Junction, AZ); Fhmc Clinic (NPI 1043830623, Fountain Hills, AZ); Fhmc Operating PC (NPI 1295355881, Fountain Hls, AZ); and 4 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Ohio University, College Of Osteopathic Medicine, class of 1984
## Record status
- **NPPES last updated:** September 18, 2025
- **Other identifiers:** Medicaid 064-0944 (OH)
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Source: [NPI Profile](https://npiprofile.com/npi/1821040783) · Data from the CMS NPPES public registry.