Johnnie Chum, CRT, RRT, RCP
Johnnie Chum, CRT, RRT, RCP is a SNF/Subacute Care Registered Respiratory Therapist in Whittier, CA, registered under NPI 1578413225.
Getting there
The practice address on file is 7716 PICKERING AVE, Whittier, CA 90602. 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 |
|---|---|---|
| 146601 | CA | SNF/Subacute Care Registered Respiratory… primary |
This provider holds licence 146601 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 SNF/Subacute Care covers
Care of residents in a long-term care environment. Respiratory modalities delivered include those similar in the general care and critical care areas but provided to less critical patients. NUCC Health Care Provider Taxonomy, code 2279S1500X
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 | 1578413225 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 2, 2026 |
| Last updated | Feb 2, 2026 |
| Status | Active |
| Sole proprietor | No |
| Credential | CRT, RRT, RCP |
| Practice address |
7716 PICKERING AVE Whittier, CA 90602 (562) 693-5240 |
| Mailing address |
14700 BELLFLOWER BLVD Bellflower, CA 90706 |
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 | 5 | 7 | 8 | 4 | 1 | 3 | 2 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 5 | 5 | 8 | 8 | 1 | 6 | 2 | 4 |
Sum = 65 · next multiple of 10 = 70 · check digit = 5 · actual last digit = 5
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.