DR. GRANT THOMAS MILLER OD
NPI 1720509458
Optometrist in River Grove, IL
About Dr. Grant Thomas Miller Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GRANT THOMAS MILLER OD (NPI 1720509458) is an individual optometrist in River Grove, Illinois, licensed in Illinois (046011216) and active in the NPI registry since July 2017. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Illinois College Of Optometry At Chicago (2017).
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 2
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. Grant Thomas Miller Od 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 Reassignment
Medicare enrollment records show Grant Miller reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
River Grove, IL 60171
- Reassigned Medicare billing, Illinois enrollment
- 2 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 3
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 60171 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 2
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 Grant Miller's NPI number?
The NPI number for Grant Miller is 1720509458. It was assigned to this individual provider in the NPPES registry on July 3, 2017.
Where is Grant Miller located?
Grant Miller practices at 8362 Grand Ave, River Grove, IL 60171. The listed phone number is (708) 583-1100.
What is Grant Miller's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Grant Miller enrolled in Medicare?
Yes. Grant 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 organization bills Medicare for Grant Miller's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grant Miller reassigns Medicare benefits to E & g Eye Care PLLC (River Grove, IL). The 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 Grant Miller's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Grant Miller accept?
Health plans from Oscar Health, Oscar Health Insurance, Oscar Health Maintenance Organization of Florida, Oscar Health Plan of North Carolina, Inc and Oscar Health Plan, Inc. and 2 other insurers list Grant 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 Grant Miller was last updated on June 27, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 years 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. Grant Thomas Miller, OD · NPI 1720509458
Optometrist provider in River Grove, Illinois. Individual provider, active in the CMS NPPES registry since July 3, 2017.
## Identity
- **NPI:** 1720509458 (Entity type: Individual)
- **Enumerated:** July 3, 2017
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** 046011216 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 8362 GRAND AVE, River Grove, IL 60171
- **Phone:** (708) 583-1100
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** E & g Eye Care PLLC (NPI 1760048995, River Grove, IL), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Illinois College Of Optometry At Chicago, class of 2017
## Record status
- **NPPES last updated:** June 27, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1720509458) · Data from the CMS NPPES public registry.