Hasan Al Sayed, MD
Hasan Al Sayed, MD is a Cornea and External Diseases Specialist Physician in Atlanta, GA, registered under NPI 1134951460. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
The practice address on file is 5671 PEACHTREE DUNWOODY RD, Atlanta, GA 30342. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 17010 | GA | Cornea and External Diseases Specialist… primary |
This provider holds licence 17010 issued in GA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Cornea and External Diseases Specialist covers
An ophthalmologist who specializes in diseases of the cornea, sclera, eyelids, conjunctiva, and anterior segment of the eye. NUCC Health Care Provider Taxonomy, code 207WX0120X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1134951460 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 15, 2024 |
| Last updated | Aug 15, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MD |
| Practice address |
5671 PEACHTREE DUNWOODY RD Atlanta, GA 30342 (678) 843-7001 |
| Mailing address |
1593 BRIARVISTA WAY NE Atlanta, GA 30329 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 1 | 3 | 4 | 9 | 5 | 1 | 4 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 6 | 4 | 9 | 5 | 2 | 4 | 3 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.