David Taff, MS, CMT
David Taff, MS, CMT is a provider specialising in Mechanotherapist in La Jolla, CA, registered under NPI 1861610461. 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 7300 GIRARD AVE SUITE 103, La Jolla, CA 92037. 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 |
|---|---|---|
| 18121 | CA | Mechanotherapist primary |
This provider holds licence 18121 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 Mechanotherapist covers
A practitioner of mechanotherapy examines patients by verbal inquiry, examination of the musculoskeletal system by hand, and visual inspection and observation. In the treatment of patients, mechanotherapists employ the techniques of advised or supervised exercise; electrical neuromuscular stimulation; massage or manipulation; or air, water, heat, cold, sound, or infrared ray therapy. NUCC Health Care Provider Taxonomy, code 172M00000X
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 | 1861610461 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 22, 2007 |
| Last updated | Jan 27, 2017 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | MS, CMT |
| Practice address |
7300 GIRARD AVE SUITE 103 La Jolla, CA 92037 (619) 606-5668 |
| Mailing address |
PO BOX 17547 San Diego, CA 92177 |
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 | 6 | 1 | 6 | 1 | 0 | 4 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 3 | 1 | 3 | 1 | 0 | 4 | 3 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
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.