Irene Ludwig, MD
Irene Ludwig, MD is a Pediatric Ophthalmology and Strabismus Specialist Physician in Nashville, TN, registered under NPI 1831120492. 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 28 WHITE BRIDGE PIKE STE 208, Nashville, TN 37205. 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 |
|---|---|---|
| 00016158 | AL | Pediatric Ophthalmology and Strabismus… primary |
| 00016158 | AL | Ophthalmology Physician |
| ME67045 | FL | Ophthalmology Physician |
| ME67045 | FL | Pediatric Ophthalmology and Strabismus… |
Licences are recorded in 2 states: AL, FL. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
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.
Licensed in 2 states
This provider holds licences in 2 states: Alabama and Florida. Multi-state licensure often means the provider works near a state border, covers more than one office, or delivers care by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 00016158
- Specialty
- Pediatric Ophthalmology and Strabismus…
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Pediatric Ophthalmology and Strabismus Specialist covers
An ophthalmologist who specializes in pediatric ophthalmology and strabismus management. The subspecialty includes the medical and surgical management of eye disorders found in children. Some of the more common disorders include amblyopia, strabismus, refractive error, cataract and glaucoma. These disorders may be related to neurological and endocrinological diseases, trauma, or aging changes in the extraocular muscles requiring medical, optical and surgical management. NUCC Health Care Provider Taxonomy, code 207WX0110X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207WX0110X | Pediatric Ophthalmology and Strabismus Specialist Physician Pediatric Ophthalmology and Strabismus Specialist | 00016158 | AL | primary |
| 207W00000X | Ophthalmology Physician | 00016158 | AL | |
| 207W00000X | Ophthalmology Physician | ME67045 | FL | |
| 207WX0110X | Pediatric Ophthalmology and Strabismus Specialist Physician Pediatric Ophthalmology and Strabismus Specialist | ME67045 | 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 | 1831120492 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 5, 2006 |
| Last updated | May 5, 2026 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
28 WHITE BRIDGE PIKE STE 208 Nashville, TN 37205 (615) 327-2001 Fax (615) 234-2015 |
| Mailing address |
2800 ROSS CLARK CIR Dothan, AL 36301 |
| Other identifiers |
3858168
· Other (AL) 51518368 · Other (AL) B83168 · Other (AL) 515-10558 · Other (AL) 000046550 · Medicaid (AL) 051510558 · Medicaid (AL) 51046550 · Other (AL) 515-43647 · Other (AL) 515-44656 · Other (AL) 5188015 · Other (AL) |
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 | 8 | 3 | 1 | 1 | 2 | 0 | 4 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 6 | 1 | 2 | 2 | 0 | 4 | 9 |
Sum = 58 · next multiple of 10 = 60 · check digit = 2 · actual last digit = 2
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.