John Mark Seacat, O.D.
Optometrist · Brunswick, GA
John Mark Seacat, O.D. is an optometrist with a practice address in Brunswick, Georgia, and NPI 1780766139, issued on Oct 19, 2006. Check the license (Georgia OPT002855, as entered in NPPES) with the Georgia board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- John Mark Seacat
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- OPT002855 GA
NM464 NM
Self-reported in NPPES; status is on the state search - Practice location
- 4875 Altama Ave, Brunswick, GA 31520
- Phone
- (912) 554-0010
- Enumerated
- Oct 19, 2006
- Record last updated
- Oct 15, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (912) 554-0075
- Medicare enrollment
- Enrolled (PECOS I20211029000167); accepts Medicare assignment
- Medical or professional school
- Indiana University - School Of Optometry, 1995
- Entity
- Type 1 · individual
Also registered at 4875 Altama Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bruce Goldin, O.D.Optometrist1174690861
- Ryan Kwan, O.D.Optometrist1871047613
- Renee Williams, O.D.Optometrist1184604191
- John Zechmann, O.D.Optometrist1528086147
Verify John Mark Seacat in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Georgia board licenses this profession
Search for license OPT002855Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average optometrist in 2024
145 Medicare Part D claims for 50 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Latanoprost81 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: $38.61
2 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. The 34,453 providers of this specialty with any payment received $769.99 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
- Depoe Eye Center PCSenoia, GA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
20 optometrist records list a practice address in Brunswick
They are 20 of the 980 NPPES records with a practice address in Brunswick, and 1,430 optometrist records in Georgia.
All 20 in Brunswick → All 1,430 in Georgia → Every provider in Brunswick →
Other optometrist records in Georgia
- Sara Aamir, O.D.Canton, GA1871837153
- Geoffrey Abraham, O.D.Lawrenceville, GA1952704256
- Justin Abraham, ODAtlanta, GA1386318137
- Nhora Abril, ODRoswell, GA1891917217
- Sampson Abu, ODAtlanta, GA1982433645
- Peggy Achenbach, O.D.Waycross, GA1609846625
- Onyinyechi Achionye, ODLithonia, GA1962437707
- James Adams, ODMcDonough, GA1730144908
- Olakunle AdegbileMorrow, GA1932443470
- Agnes Adu, ODSugar Hill, GA1013034453
Common questions
What is John Mark Seacat, O.D.'s NPI number?
John Mark Seacat, O.D.'s National Provider Identifier (NPI) is 1780766139, issued on Oct 19, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Mark Seacat, O.D. located?
The NPPES record lists a practice address at 4875 Altama Ave, Brunswick, GA, 31520. Phone: (912) 554-0010. Providers update this record themselves, so call before visiting.
How can I verify John Mark Seacat, O.D.'s license?
NPPES lists Georgia license number OPT002855, as entered by the provider. Search the Georgia board that licenses this profession; the NPPES record confirms identity only.
How much does John Mark Seacat, O.D. prescribe under Medicare Part D?
In 2024, John Mark Seacat, O.D. had 145 Medicare Part D claims for 50 beneficiaries; the average among optometrist prescribers was 277. 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.