Warren Ross Loos, PH.D.
Clinical Psychologist · Honolulu, HI
Warren Ross Loos, PH.D. is a clinical psychologist with a practice address in Honolulu, Hawaii, and NPI 1548360167, issued on Sep 24, 2006. Check the license (Hawaii PSY-792, as entered in NPPES) with the Hawaii board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Warren Ross Loos
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY-792 HI
Self-reported in NPPES; status is on the state search - Practice location
- 4300 Waialae Ave Apt B1002, Honolulu, HI 96816
- Phone
- (808) 284-2200
- Enumerated
- Sep 24, 2006
- Record last updated
- Jul 26, 2022
- Fax
- (888) 668-8527
- Medicaid ID
- 54463601 HI
- Medicare enrollment
- Enrolled (PECOS I20040217000950); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 640 in Hawaii → Look up another NPI →
Also registered at 4300 Waialae Ave Apt B1002
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Claudette Ozoa, PH.D.Clinical Psychologist1770683302
Verify Warren Ross Loos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Hawaii board licenses this profession
Search for license PSY-792Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Warren Ross Loos among 640 clinical psychologist records in Hawaii
Warren Ross Loos, PH.D. is one of 640 clinical psychologist records with a practice address in Hawaii. 15% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 75% newer
- In a Medicare fileNo · 15% of these records are
- In the CMS Doctors and Clinicians fileYes · 29% of these records are
- Graduated1988 · median 2006 among the 186 with a school on file
- Record last updated2022 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a Hawaii practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
296 clinical psychologist records list a practice address in Honolulu
They are 296 of the 12,408 NPPES records with a practice address in Honolulu, and 640 clinical psychologist records in Hawaii. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 640 in Hawaii → Every provider in Honolulu → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Jean Adair-Leland, PH.D.Honolulu, HI 968161952341224
- Kathryn Chun, PH.D.Honolulu, HI 968161649463266
- Mitzi Gold, PHDHonolulu, HI 968161093750895
- Peter Guay, PH.D.Honolulu, HI 968161952402828
- Karla Izuka, PSY.D.Honolulu, HI 968161336164508
- Tammie Kim, PSY.D.Honolulu, HI 968161821038506
- Claudette Ozoa, PH.D.Honolulu, HI 968161770683302
- Sean Scanlan, PH.D.Honolulu, HI 968161740318658
Common questions
What is Warren Ross Loos, PH.D.'s NPI number?
Warren Ross Loos, PH.D.'s National Provider Identifier (NPI) is 1548360167, issued on Sep 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Warren Ross Loos, PH.D. located?
The NPPES record lists a practice address at 4300 Waialae Ave Apt B1002, Honolulu, HI, 96816. Phone: (808) 284-2200. Providers update this record themselves, so call before visiting.
How can I verify Warren Ross Loos, PH.D.'s license?
NPPES lists Hawaii license number PSY-792, as entered by the provider. Search the Hawaii board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.