Krystal Espinoza
Krystal Espinoza is a Medical Physician Assistant in Alhambra, CA, registered under NPI 1003664541. 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 Alhambra, based on OpenStreetMap data collected Oct 3, 2026. Parking is available about 731 ft away. There is EV charging 0.22 mi from the office (Alhambra Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.24 mi away, served by Fremont / Commonwealth;Commonwealth & Freemont. If you arrive early, there is a coffee shop 0.29 mi away.
Getting here and what is nearby
Transit Fremont / Orange 96 ft ~1 min
Transit Fremont / Orange 240 ft ~1 min
Parking 436 ft ~2 min
Parking 655 ft ~3 min
Parking 731 ft ~3 min
Restaurant IHOP 889 ft ~4 min
Restaurant Johnny Rockets 0.21 mi ~5 min
1129 South Fremont Avenue, Alhambra 91803
Mo-Th 10:30-18:30; Fr-Sa 10:00-20:00; Su 10:00-18:30
Restaurant Haruya Ramen 0.21 mi ~5 min
1129 South Fremont Avenue, Alhambra 91803
Grocery Albertsons 0.21 mi ~5 min
2400 West Commonwealth Avenue, Alhambra 91803
06:00-23:00
EV charging Alhambra Supercharger 0.22 mi ~5 min
Transit Fremont / Commonwealth;Commonwealth & Freemont 0.24 mi ~5 min
Coffee Starbucks 0.24 mi ~5 min
1131 Fremont Avenue, Alhambra 91803
Mo-Fr 04:30-22:00; Sa,Su 05:00-22:00
Convenience 7-Eleven 0.25 mi ~6 min
Coffee Sunright Tea Studio 0.29 mi ~6 min
Gas station Costco Gasoline 0.34 mi ~7 min
2207 West Commonwealth Avenue, Alhambra 91803
Mo-Fr 05:30-21:30; Sa 06:00-20:00; Su 06:00-19:30
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Medical covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363AM0700X
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 | 1003664541 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 9, 2024 |
| Last updated | Jun 24, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
1000 S FREMONT AVE Alhambra, CA 91803 (626) 457-4240 |
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 | 6 | 6 | 4 | 5 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 6 | 8 | 5 | 8 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.