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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. GRANT THOMAS SLAGLE DO
NPI 1891371316
Ophthalmology in Chattanooga, TN

Active since March 23, 2021PECOS EnrolledAccepts Medicare Assignment
7268 JARNIGAN RD STE 200, CHATTANOOGA, TN 37421(423) 508-7337 Get Directions Write a Review

NPPES record last updated: July 27, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 27, 2026, Aug 6, 2025, May 17, 2021 and 1 more (4 updates tracked since 2021).

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 is a graduate of Mid West Medical College (2020).

NPPES Registry Identity

NPI1891371316
Entity TypeIndividualMale
Primary Taxonomy207W00000X
Provider Legal NameDR. GRANT THOMAS SLAGLECredential: DO
Location Address7268 JARNIGAN RD STE 200Chattanooga, TN 37421-3097
Mailing AddressPo Box 306307Nashville, TN 37230-6307 · (423) 424-0383
Phone(423) 508-7337
Sole ProprietorNo
Medical School CMSMid West Medical CollegeGraduated 2020
Enumeration DateMarch 23, 2021
Last NPPES UpdateJuly 27, 20264 updates tracked since enumeration
NPPES CertifiedJuly 27, 2026
✔ NPI 1891371316 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians
Taxonomy Code207W00000X
Licenses✔ Licensed in TN · 6982✔ Licensed in LA · 346421
Definition
An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.
7268 JARNIGAN RD STE 200, Chattanooga, TN 37421
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

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.

PECOS PAC ID3274938048
PECOS Enrollment IDI20250820000613
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

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, LA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number190111
Location2600 Greenwood RoadShreveport, LA 71103 · Caddo County
Emergency services Birthing friendly

Physician 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.

New Patient
$121.80 typical visit price
range $52.64 – $160.89
Typical copayment $30.45 (range $13.16 – $40.22)
Most-billed visit code 99204
Established Patient
$66.01 typical visit price
range $16.72 – $131.41
Typical copayment $16.50 (range $4.18 – $32.85)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PEDRO FRANCISCO MONSALVE DIAZ MD
Ophthalmology (Retina Specialist)
7268 JARNIGAN RD STE 200
CHATTANOOGA, TN 37421
Hamilton County (423) 834-9383

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.

What insurance does Grant Slagle accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health, Ambetter from Superior HealthPlan and Blue Cross and Blue Shield of Louisiana and 1 other insurer 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 July 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 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.