Dennis Klos, PH.D.
Dennis Klos, PH.D. is a Clinical Psychologist in Los Angeles, CA, registered under NPI 1003039876. 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 Los Angeles, based on OpenStreetMap data collected Sep 1, 2026. Parking is available about 0.31 mi away at Equinox Fitness. There is EV charging 0.42 mi from the office (FLO) — useful if you are driving in from out of town. The nearest transit stop is 639 ft away, served by Sepulveda & Santa Monica. A pharmacy sits 0.48 mi from the entrance (Westside Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.43 mi away.
Getting here and what is nearby
Parking 329 ft ~2 min
Transit Sepulveda & Ohio 397 ft ~2 min
Transit Sepulveda & Ohio 406 ft ~2 min
Parking 539 ft ~3 min
Transit Sepulveda & Santa Monica 639 ft ~3 min
Convenience Mobil Mart 627 ft ~3 min
Gas station Mobil 641 ft ~3 min
Restaurant The Corner Deli & Grill 655 ft ~3 min
1660 Sepulveda Boulevard, Los Angeles 90025
Mo-Fr 06:30-16:00
Coffee Starbucks 678 ft ~3 min
11155 Santa Monica Boulevard, West Los Angeles 90025
Restaurant Everytable 817 ft ~4 min
11049 Santa Monica Boulevard, Los Angeles 90025
Restaurant Sichuan Impression 820 ft ~4 min
11057 Santa Monica Blvd
Mo-Su 11:30-14:30, 04:30-21:00
EV charging West L.A. Customer Service Center 0.20 mi ~5 min
Convenience 7-Eleven 0.24 mi ~5 min
11285 Santa Monica Boulevard, Los Angeles 90025-3155
Hotel West End Hotel 0.24 mi ~5 min
Gas station Shell 0.25 mi ~6 min
Hotel Hotel Brooks 0.26 mi ~6 min
EV charging 0.29 mi ~6 min
Parking Equinox Fitness 0.31 mi ~7 min
1835 Sepulveda Boulevard, Los Angeles
Mo-Fr 05:00-23:00; Sa-Su 07:00-20:00
Coffee Starbucks 0.39 mi ~8 min
Grocery Bristol Farms 0.40 mi ~9 min
1515 Westwood Boulevard, Los Angeles 90024
06:00-23:00
EV charging FLO 0.42 mi ~9 min
Mo-Sa 08:00-20:00 open "2 Hour parking only"
Convenience Jordan Market 0.42 mi ~9 min
1449 Westwood Boulevard, Los Angeles 90024
Grocery Sprouts Farmers Market 0.42 mi ~9 min
1751 Westwood Boulevard, Los Angeles 90024
Mo-Su 07:00-22:00
Coffee Sipp Coffee House 0.43 mi ~9 min
1427 Westwood Boulevard, Los Angeles 90024
Mo-Su 08:00-15:00
Pharmacy Platinum Pharmacy Medical Supply 0.47 mi ~10 min
Pharmacy Westside Pharmacy 0.48 mi ~10 min
Mo-Fr 10:00-17:00
Gas station Mobil 0.50 mi ~10 min
10857 Santa Monica Boulevard, Los Angeles 90024
24/7
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 |
|---|---|---|
| PSY9105 | CA | Clinical Psychologist primary |
This provider holds licence PSY9105 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 Clinical covers
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems. NUCC Health Care Provider Taxonomy, code 103TC0700X
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 | 1003039876 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 10, 2007 |
| Last updated | Jul 8, 2007 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | PH.D. |
| Practice address |
1554 S SEPULVEDA BLVD SUITE 211 Los Angeles, CA 90025 (310) 476-5277 |
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 | 0 | 3 | 9 | 8 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 3 | 9 | 8 | 5 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.