Grayson Breneman Ashby, MD
Pediatric Ophthalmology and Strabismus Specialist Physician · Nashville, TN
Grayson Breneman Ashby, MD is a pediatric ophthalmology and strabismus specialist physician with a practice address in Nashville, Tennessee, and NPI 1598414641, issued on Mar 23, 2022. Check the license (Tennessee 77046, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Grayson Breneman Ashby
- Credential
- MD
- Primary taxonomy
- Pediatric Ophthalmology and Strabismus Specialist Physician 207WX0110X
- License numbers
- 77046 TN
32438 MN
74599 MN
Self-reported in NPPES; status is on the state search - Practice location
- 1301 Medical Center Dr, Nashville, TN 37232
- Phone
- (615) 322-3000
- Enumerated
- Mar 23, 2022
- Record last updated
- Jul 7, 2026
- Medicare enrollment
- Enrolled (PECOS I20230801002755); accepts Medicare assignment
- Medical or professional school
- Mayo Medical School, 2022
- Entity
- Type 1 · individual
8 nearest pediatric ophthalmology and strabismus specialist physician records → All 11 in Tennessee → Look up another NPI →
Also registered at 1301 Medical Center Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sydney Albrecht, PAPhysician Assistant1215616677
Verify Grayson Breneman Ashby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 77046Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average pediatric ophthalmology and strabismus specialist physician in 2024
247 Medicare Part D claims for 101 beneficiaries, against an average of 111 among the 150 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Prednisolone Acetate49 claims
- Latanoprost28 claims
- Valacyclovir20 claims
- Moxifloxacin17 claims
- Brimonidine Tartrate15 claims
- Dorzolamide-Timolol12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $218.00
2 payments; by number, the most common kind was food and beverage; the largest payer was Sight Sciences, Inc. The 114 providers of this specialty with any payment received $369.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Mayo ClinicRochester, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Grayson Breneman Ashby among 11 pediatric ophthalmology and strabismus specialist physician records in Tennessee
Grayson Breneman Ashby, MD is one of 11 pediatric ophthalmology and strabismus specialist physician records with a practice address in Tennessee. 100% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 91% of them.
- NPI issued2022 · 91% of these records are older, 0% newer
- In a Medicare fileYes · 100% of these records are
- In the CMS Doctors and Clinicians fileYes · 91% of these records are
- Graduated2022 · median 1993 among the 10 with a school on file
- Record last updated2026 · 9% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0110X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Ophthalmology and Strabismus Specialist Physician providers in Tennessee
There are 11 pediatric ophthalmology and strabismus specialist physician records in Tennessee.
All 11 in Tennessee → Every provider in Nashville → Pediatric Ophthalmology and Strabismus Specialist Physician nationwide →
The 8 pediatric ophthalmology and strabismus specialist physician records with the nearest ZIP codes
- Nancy Benegas, MDNashville, TN 372321275504854
- Sean Donahue, MD, PHDNashville, TN 372321083706402
- Meghan Flemmons, MDNashville, TN 372321912990631
- Alexis Flowers, MDNashville, TN 372321821444589
- Jeffrey Hunter, MDNashville, TN 372321134122153
- Anvesh Reddy, MDNashville, TN 372321366737025
- David Wallace, MDNashville, TN 372321750482311
- Irene Ludwig, MDNashville, TN 372051831120492
Common questions
What is Grayson Breneman Ashby, MD's NPI number?
Grayson Breneman Ashby, MD's National Provider Identifier (NPI) is 1598414641, issued on Mar 23, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Grayson Breneman Ashby, MD located?
The NPPES record lists a practice address at 1301 Medical Center Dr, Nashville, TN, 37232. Phone: (615) 322-3000. Providers update this record themselves, so call before visiting.
How can I verify Grayson Breneman Ashby, MD's license?
NPPES lists Tennessee license number 77046, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Grayson Breneman Ashby, MD prescribe under Medicare Part D?
In 2024, Grayson Breneman Ashby, MD had 247 Medicare Part D claims for 101 beneficiaries; the average among pediatric ophthalmology and strabismus specialist physician prescribers was 111. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.