Debby Chao, M.D.
Debby Chao, M.D. is a provider specialising in Student in an Organized Health Care Education/Training Program in Manteca, CA, registered under NPI 1275721979.
Getting there
The practice address on file is 1789 W YOSEMITE AVE, Manteca, CA 95337. 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 |
|---|---|---|
| A83894 | CA | Student in an Organized Health Care… primary |
This provider holds licence A83894 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 - Urology
- PAC ID
- 1850450222
- Enrollment ID
- I20140225001354
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Urology. 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 Student in an Organized Health Care Education/Training Program covers
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care. NUCC Health Care Provider Taxonomy, code 390200000X
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 | 1275721979 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 9, 2007 |
| Last updated | Oct 14, 2011 |
| Status | Active |
| Sole proprietor | No |
| Credential | M.D. |
| Practice address |
1789 W YOSEMITE AVE Manteca, CA 95337 (209) 858-7773 |
| Mailing address |
7560 FLAGSTONE DR Pleasanton, CA 94588 |
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 | 2 | 7 | 5 | 7 | 2 | 1 | 9 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 5 | 5 | 5 | 2 | 2 | 9 | 5 |
Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9
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.