Samuel Doong
Samuel Doong is an Intellectual & Developmental Disabilities Psychologist in Berkeley, CA, registered under NPI 1003476359. 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 Berkeley, based on OpenStreetMap data collected Sep 29, 2026. Parking is available about 0.43 mi away at Telegraph Channing Garage. The nearest transit stop is 423 ft away, served by Piedmont Crescent & Dwight Way. A pharmacy sits 0.45 mi from the entrance (Walgreens), 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
Parking 38 ft ~1 min
Transit Warring Street & Piedmont Crescent 213 ft ~1 min
Transit Piedmont Avenue & Dwight Way 313 ft ~2 min
Transit Piedmont Crescent & Dwight Way 423 ft ~2 min
Parking Underhill Parking & Field 0.20 mi ~4 min
2645 Haste Street, Berkeley
Coffee Souvenir Coffee 0.24 mi ~5 min
2701 College Avenue, Berkeley
Convenience Derby Food Center 0.25 mi ~6 min
Hotel Graduate by Hilton Berkeley 0.30 mi ~6 min
Coffee Caffé Strada 0.31 mi ~7 min
Restaurant Artichoke Basille's Pizza 0.32 mi ~7 min
Coffee Romeo's Coffee 0.34 mi ~7 min
Convenience Kathmandu Market 0.34 mi ~7 min
2521 Telegraph Avenue, Berkeley
Restaurant Bongo Burger 0.34 mi ~7 min
Restaurant Sourdough & Co 0.34 mi ~7 min
2509 Haste Street, Berkeley
Convenience 7-Eleven 0.38 mi ~8 min
2601 Telegraph Avenue, Berkeley 94704
Mo-Su 06:00-22:00
Pharmacy CVS Pharmacy 0.41 mi ~9 min
2655 Telegraph Avenue, Berkeley
Mo-Fr 10:00-13:30,14:00-20:00; Su 11:00-13:30,14:00-17:00; Sa 10:00-13:30,14:00-18:00
Parking Telegraph Channing Garage 0.43 mi ~9 min
2425;2431;2433;2435;2439 Channing Way, Berkeley
Pharmacy Walgreens 0.45 mi ~9 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 Intellectual & Developmental Disabilities covers
Definition to come... NUCC Health Care Provider Taxonomy, code 103TM1800X
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 | 1003476359 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 18, 2019 |
| Last updated | Jun 18, 2019 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
2514 PIEDMONT AVE APT 105 Berkeley, CA 94704 (909) 380-3463 |
| Mailing address |
183 BERKELEY Irvine, CA 92612 |
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 | 7 | 6 | 3 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 7 | 3 | 3 | 1 |
Sum = 51 · next multiple of 10 = 60 · 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.