Melissa Katherman
Melissa Katherman is a Sports Medicine (Preventive Medicine) Physician in Northridge, CA, registered under NPI 1396259412.
Getting there
The practice address on file is 18111 NORDHOFF ST, Northridge, CA 91330. 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 |
|---|---|---|
| 2000029512 | CA | Sports Medicine (Preventive Medicine)… primary |
This provider holds licence 2000029512 issued in CA. 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 Sports Medicine covers
A preventive medicine physician who specializes in the diagnosis and treatment of sports related conditions and injuries. NUCC Health Care Provider Taxonomy, code 2083S0010X
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 | 1396259412 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 28, 2017 |
| Last updated | Nov 28, 2017 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
18111 NORDHOFF ST Northridge, CA 91330 (818) 677-7516 |
| Mailing address |
10025 DE SOTO AVE APT 250 Chatsworth, CA 91311 |
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 | 3 | 9 | 6 | 2 | 5 | 9 | 4 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 9 | 6 | 4 | 5 | 9 | 4 | 2 |
Sum = 68 · next multiple of 10 = 70 · 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.