Brian Cao, MD
Brian Cao, MD is a provider specialising in Student in an Organized Health Care Education/Training Program in Providence, RI, registered under NPI 1003496274. 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 Providence, based on OpenStreetMap data collected Aug 29, 2026. Parking is available about 0.44 mi away. The nearest transit stop is 340 ft away, served by Hospital District (Southbound).
Getting here and what is nearby
Transit Hospital District (Northbound) 245 ft ~1 min
Transit Rhode Island Hospital (Eddy St Entrance) 295 ft ~2 min
Transit Hospital District (Southbound) 340 ft ~2 min
Restaurant Wendy's 0.24 mi ~5 min
Gas station Marathon 0.39 mi ~8 min
Parking 0.39 mi ~8 min
Restaurant Somo Kitchen & Sushi 0.39 mi ~8 min
373 Richmond Street, Providence 02903
Restaurant JR's Providence 0.39 mi ~8 min
371 Richmond Street, Providence 02903
Convenience Marathon 0.41 mi ~9 min
Parking 0.41 mi ~9 min
90 Elm Street, Providence 02903
Parking 0.44 mi ~9 min
85 Elm Street, Providence 02903
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 | 1003496274 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 12, 2021 |
| Last updated | Jun 10, 2022 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MD |
| Practice address |
593 EDDY ST Providence, RI 02903 (401) 606-4286 |
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 | 4 | 9 | 6 | 2 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 9 | 3 | 2 | 5 |
Sum = 56 · next multiple of 10 = 60 · check digit = 4 · actual last digit = 4
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.