Mark Herschel, M.D.
Mark Herschel, M.D. is a Cornea and External Diseases Specialist Physician in Winter Park, FL, registered under NPI 1124083068. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 5452 LAKE HOWELL ROAD, Winter Park, FL 32792. 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 |
|---|---|---|
| ME77485 | FL | Cornea and External Diseases Specialist… primary |
| ME77485 | FL | Ophthalmology Physician |
This provider holds licence ME77485 issued in FL. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Ophthalmology
- PAC ID
- 1153484670
Medicare enrolment is recorded as approved under the provider type Practitioner - Ophthalmology. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
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
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207WX0120X | Cornea and External Diseases Specialist Physician Cornea and External Diseases Specialist | ME77485 | FL | primary |
| 207W00000X | Ophthalmology Physician | ME77485 | FL |
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 | 1124083068 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 20, 2006 |
| Last updated | Feb 14, 2023 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
5452 LAKE HOWELL ROAD Winter Park, FL 32792 (407) 894-8081 Fax (407) 894-8082 |
| Mailing address |
5452 LAKE HOWELL RD Winter Park, FL 32792 |
| Other identifiers |
400650
· GHI (FL) 20922 · BCBS (FL) 2439416 · AETNA HMO (FL) 25622700 (FL) 1476870 · CIGNA (FL) 209665 · WELL CARE (FL) 5014060 · AETNAPPO/POS (FL) 1689235 · UNITED HEALTH CARE (FL) |
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 | 2 | 4 | 0 | 8 | 3 | 0 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 4 | 4 | 0 | 8 | 6 | 0 | 3 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.