David Morrison, PSY.D
David Morrison, PSY.D is a Clinical Psychologist in Thousand Oaks, CA, registered under NPI 1003137654. 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 Thousand Oaks, based on OpenStreetMap data collected Sep 2, 2026. Parking is available about 255 ft away. There is EV charging 0.43 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 0.22 mi away, served by The Oaks. If you arrive early, there is a coffee shop 0.48 mi away.
Getting here and what is nearby
Parking 68 ft ~1 min
Parking 254 ft ~1 min
Parking 255 ft ~1 min
Restaurant Chipotle 647 ft ~3 min
EV charging 807 ft ~4 min
Transit Wilbur Road & Marin Street 0.21 mi ~5 min
Transit Thousand Oaks Wilbur Road;Wildbur Road & West Thousand Oaks Boulevard 0.21 mi ~5 min
Transit The Oaks 0.22 mi ~5 min
Restaurant The Cheesecake Factory 0.25 mi ~6 min
442 West Hillcrest Drive, Thousand Oaks 91360
Mo-Th 11:00-22:00; Fr-Sa 11:00-23:00; Su 10:00-22:00; Dec 25 off; Nov Th[4] off
Restaurant Greco's New York Pizzaria 0.26 mi ~6 min
245 North Moorpark Road, Thousand Oaks 93060
Mo-Tu 15:00-20:00; We-Su 11:00-20:00
Coffee Matcha Boba 0.27 mi ~6 min
245 North Moorpark Road, Thousand Oaks 91360
Coffee Coffee Bean 0.33 mi ~7 min
Grocery ALDI 0.34 mi ~7 min
179 North Moorpark Road, Thousand Oaks 91360-4401
Mo-Su 09:00-21:00
Hotel Best Western Plus Thousand Oaks Inn 0.41 mi ~9 min
75 West Thousand Oaks Boulevard, Thousand Oaks 91360
EV charging Tesla Supercharger 0.43 mi ~9 min
Gas station Chevron 0.47 mi ~10 min
Coffee Peet's Coffee 0.48 mi ~10 min
Mo-Su 05:30-18:30
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 |
|---|---|---|
| PSY 23044 | CA | Clinical Psychologist primary |
This provider holds licence PSY 23044 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 | 1003137654 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 17, 2010 |
| Last updated | Jun 17, 2010 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | PSY.D |
| Practice address |
509 MARIN ST STE 229 Thousand Oaks, CA 91360 (805) 368-8376 Fax (805) 582-0019 |
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 | 1 | 3 | 7 | 6 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 3 | 5 | 6 | 1 |
Sum = 46 · next multiple of 10 = 50 · 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.