Charissa Ong
Charissa Ong is a Geriatric Pharmacist in Covina, CA, registered under NPI 1619635513.
Getting there
The practice address on file is 760 ARROW GRAND CIR, Covina, CA 91722. 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 |
|---|---|---|
| 78246 | CA | Geriatric Pharmacist primary |
This provider holds licence 78246 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 Geriatric covers
A pharmacist who is certified in geriatric pharmacy practice is designated as a "Certified Geriatric Pharmacist" (CGP). To become certified, candidates are expected to be knowledgeable about principles of geriatric pharmacotherapy and the provision of pharmaceutical care to the elderly. NUCC Health Care Provider Taxonomy, code 1835G0303X
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 | 1619635513 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 8, 2021 |
| Last updated | Dec 8, 2021 |
| Status | Active |
| Sole proprietor | No |
| Practice address |
760 ARROW GRAND CIR Covina, CA 91722 (805) 624-9898 |
| Mailing address |
300 ELM ST Alhambra, CA 91801 |
| Other identifiers |
311665
· Other 78246 · Other (CA) D2051502 · Other (CA) |
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 | 1 | 9 | 6 | 3 | 5 | 5 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 2 | 9 | 3 | 3 | 1 | 5 | 2 |
Sum = 57 · next multiple of 10 = 60 · check digit = 3 · actual last digit = 3
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.