Bernadette Balestrieri-martinez, APRN
Bernadette Balestrieri-martinez, APRN is an Acute Care Clinical Nurse Specialist in Chula Vista, CA, registered under NPI 1003517780. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Chula Vista, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 468 ft away. The nearest transit stop is 0.22 mi away. A pharmacy sits 0.28 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.34 mi away.
Getting here and what is nearby
Transit Medical Center Court & Sharp Chula Vista Medical Center 273 ft ~2 min
Transit Medical Center Court & Sharp Chula Vista Medical Center 314 ft ~2 min
Parking 358 ft ~2 min
Parking 369 ft ~2 min
Parking 468 ft ~2 min
Transit 0.22 mi ~5 min
Grocery Ralphs 0.24 mi ~5 min
659 East Palomar Street, Chula Vista 91911
Mo-Su 05:00-01:00
Pharmacy CVS Pharmacy 0.28 mi ~6 min
Gas station Chevron 0.30 mi ~6 min
695 East Palomar Street
Restaurant KFC 0.30 mi ~6 min
Restaurant McDonald's 0.32 mi ~7 min
687 East Palomar Street, Chula Vista 91911
05:00-24:00
Coffee Starbucks 0.34 mi ~7 min
605 East Palomar Street, Chula Vista 91911
Mo-Sa 05:00-22:00; Su 06:00-22:00
Restaurant Lolita's 0.34 mi ~7 min
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 1257 | CA | Acute Care Clinical Nurse Specialist primary |
This provider holds licence 1257 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 Acute Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 364SA2100X
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 | 1003517780 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 10, 2023 |
| Last updated | Sep 20, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | APRN |
| Practice address |
751 MEDICAL CENTER CT Chula Vista, CA 91911 (619) 502-4014 |
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 | 0 | 0 | 3 | 5 | 1 | 7 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 1 | 5 | 7 | 7 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
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.