David Janhofer
David Janhofer is a Plastic and Reconstructive Surgery Physician in Norwalk, CT, registered under NPI 1104481209. 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 34 MAPLE ST, Norwalk, CT 06850. 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 |
|---|---|---|
| 84412 | CT | Plastic and Reconstructive Surgery… primary |
This provider holds licence 84412 issued in CT. 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
- Order And Referring Only - Plastic And Reconstructive Surgery
- PAC ID
- 1052649639
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Plastic And Reconstructive Surgery. 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 Plastic and Reconstructive Surgery covers
A surgeon who specializes in plastic and reconstructive surgery. NUCC Health Care Provider Taxonomy, code 2086S0122X
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 | 1104481209 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 3, 2019 |
| Last updated | Apr 30, 2026 |
| Status | Active |
| Sole proprietor | Yes |
| Practice address |
34 MAPLE ST Norwalk, CT 06850 (212) 746-5454 |
| Mailing address |
330 E 75TH ST APT 8C New York, NY 10021 |
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 | 0 | 4 | 4 | 8 | 1 | 2 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 0 | 4 | 8 | 8 | 2 | 2 | 0 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.