Brandon Edwin De Guzman, DO
Brandon Edwin De Guzman, DO is a provider specialising in Student in an Organized Health Care Education/Training Program in Walnut Creek, CA, registered under NPI 1003600792.
Getting there
Here is what surrounds this office in Walnut Creek, based on OpenStreetMap data collected Sep 1, 2026. Parking is available about 138 ft away. The nearest transit stop is 0.23 mi away, served by Pleasant Hill BART. If you arrive early, there is a coffee shop 0.47 mi away.
Getting here and what is nearby
Parking 67 ft ~1 min
Parking 135 ft ~1 min
Parking 138 ft ~1 min
Transit Treat Boulevard & Jones Road & Cherry Lane 277 ft ~2 min
Transit Treat Boulevard & Cherry Lane 681 ft ~3 min
Coffee Starbucks 714 ft ~3 min
7000 Sunne Lane, Walnut Creek 94597
Mo-Fr 05:00-17:00; Sa,Su 06:00-17:00
Restaurant Parada 980 ft ~4 min
Hotel Renaissance Walnut Creek Hotel 0.20 mi ~4 min
Restaurant Bill and Bali’s 0.22 mi ~5 min
7011 Sunne Lane, 94597
Su-Th 11:00-21:00; Fr-Sa 11:00-22:00
Transit Pleasant Hill BART 0.23 mi ~5 min
Hotel Embassy Suites Walnut Creek 0.31 mi ~7 min
Restaurant IHOP 0.46 mi ~10 min
2910 North Main Street, Walnut Creek 94597
07:00-22:00
Coffee Starbucks 0.47 mi ~10 min
Gas station Shell 0.50 mi ~11 min
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 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 | 1003600792 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 7, 2025 |
| Last updated | Apr 7, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | DO |
| Practice address |
1450 TREAT BLVD STE 320 Walnut Creek, CA 94597 (925) 296-9880 |
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 | 0 | 0 | 7 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 0 | 0 | 7 | 9 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.