Karen Ching, DDS
Karen Ching, DDS is a provider specialising in Pediatric Dentistry in Oakland, CA, registered under NPI 1891830378.
Getting there
The practice address on file is 345 9TH ST SUITE 302, Oakland, CA 94607. 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 |
|---|---|---|
| 48685 | CA | Pediatric Dentistry primary |
This provider holds licence 48685 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Order And Referring Only - Other (physician)
- PAC ID
- 8426340530
- Enrollment ID
- I20160711002028
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Other (physician). Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Pediatric Dentistry covers
An age-defined specialty that provides both primary and comprehensive preventive and therapeutic oral health care for infants and children through adolescence, including those with special health care needs. NUCC Health Care Provider Taxonomy, code 1223P0221X
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 | 1891830378 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 21, 2007 |
| Last updated | Aug 3, 2016 |
| Status | Active |
| Sole proprietor | No |
| Credential | DDS |
| Practice address |
345 9TH ST SUITE 302 Oakland, CA 94607 (510) 986-6888 |
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 | 9 | 1 | 8 | 3 | 0 | 3 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 9 | 1 | 7 | 3 | 0 | 3 | 5 |
Sum = 62 · next multiple of 10 = 70 · 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.