Lin Johnson, M.D.
Lin Johnson, M.D. is a Nephrology Physician in New Braunfels, TX, registered under NPI 1104801737.
Getting there
The practice address on file is 2660 E COMMON ST SUITE 201, New Braunfels, TX 78130. 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 |
|---|---|---|
| K3913 | TX | Nephrology Physician primary |
This provider holds licence K3913 issued in TX. 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 Nephrology covers
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation. NUCC Health Care Provider Taxonomy, code 207RN0300X
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 | 1104801737 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 6, 2005 |
| Last updated | Aug 13, 2015 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
2660 E COMMON ST SUITE 201 New Braunfels, TX 78130 (830) 620-4650 Fax (830) 620-4657 |
| Mailing address |
7142 SAN PEDRO AVE SUITE 120 San Antonio, TX 78216 |
| Other identifiers |
105415701
(TX) 390005888 · MEDICARE RAILROAD (TX) |
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 | 8 | 0 | 1 | 7 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 0 | 4 | 7 | 0 | 2 | 7 | 6 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
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.