Zack Ojinaga, RCEP
Zack Ojinaga, RCEP is a provider specialising in Clinical Exercise Physiologist in Elk Grove, CA, registered under NPI 1659011518. 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 10471 GRANT LINE RD STE 170, Elk Grove, CA 95624. 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 |
|---|---|---|
| 1066004 | CA | Clinical Exercise Physiologist primary |
This provider holds licence 1066004 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 Clinical Exercise Physiologist covers
A Clinical Exercise Physiologist is a health care professional who is trained to work with patients with chronic disease where exercise training has been shown to be of therapeutic benefit, including but not limited to cardiovascular and pulmonary disease, and metabolic disorders. NUCC Health Care Provider Taxonomy, code 224Y00000X
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 | 1659011518 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 30, 2022 |
| Last updated | Mar 30, 2022 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | RCEP |
| Practice address |
10471 GRANT LINE RD STE 170 Elk Grove, CA 95624 (916) 883-3366 |
| Mailing address |
3408 TRIO LN Sacramento, CA 95817 |
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 | 6 | 5 | 9 | 0 | 1 | 1 | 5 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 1 | 9 | 0 | 1 | 2 | 5 | 2 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.