DR. GRANT THOMAS SLAGLE DO
NPI 1891371316
Ophthalmology in Chattanooga, TN
About Dr. Grant Thomas Slagle Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. GRANT THOMAS SLAGLE DO (NPI 1891371316) is an individual ophthalmology provider in Chattanooga, Tennessee, licensed in Tennessee (6982) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with Willis Knighton Medical Center, and maintains a secondary practice location in Shreveport.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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. Grant Thomas Slagle 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
2Medicare enrollment records show Grant Slagle reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Chattanooga, TN 37421
- Reassigned Medicare billing, Tennessee enrollment
- 43 clinicians in this Medicare group
Shreveport, LA 71103
- Reassigned Medicare billing, Louisiana enrollment
- 12 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Willis Knighton Medical Center
Acute Care Hospitals · Shreveport, LAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37421 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
CHATTANOOGA, TN 37421
CHATTANOOGA, TN 37421
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 Slagle's NPI number?
The NPI number for Grant Slagle is 1891371316. It was assigned to this individual provider in the NPPES registry on March 23, 2021.
Where is Grant Slagle located?
Grant Slagle practices at 7268 Jarnigan Rd Ste 200, Chattanooga, TN 37421. The listed phone number is (423) 508-7337.
What is Grant Slagle's specialty?
The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.
Is Grant Slagle enrolled in Medicare?
Yes. Grant Slagle 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 Grant Slagle's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Grant Slagle reassigns Medicare benefits to 2 organizations: Southeast Eye Specialists PLLC (Chattanooga, TN) and Wk Pierremont Eye Institute (Shreveport, LA). 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 Grant Slagle's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Grant Slagle accept?
Health plans from Ambetter Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Blue Cross and Blue Shield of Louisiana and 4 other insurers list Grant Slagle 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.
Is Grant Slagle affiliated with any hospitals?
According to CMS data, Grant Slagle is affiliated with Willis Knighton Medical Center.
When was this NPI record last updated?
The NPPES record for Grant Slagle was last updated on September 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days 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 Slagle, DO · NPI 1891371316
Ophthalmology physician in Chattanooga, Tennessee. Individual provider, active in the CMS NPPES registry since March 23, 2021.
## Identity
- **NPI:** 1891371316 (Entity type: Individual)
- **Enumerated:** March 23, 2021
- **Primary specialty:** Ophthalmology · taxonomy 207W00000X
- **State license:** 6982 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 7268 JARNIGAN RD STE 200, Chattanooga, TN 37421-3097
- **Phone:** (423) 508-7337
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Southeast Eye Specialists PLLC (NPI 1518961176, Chattanooga, TN); Wk Pierremont Eye Institute (NPI 1932130192, Shreveport, LA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2020
## Record status
- **NPPES last updated:** September 30, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1891371316) · Data from the CMS NPPES public registry.