DR. WARREN ROSS LOOS PH.D.
NPI 1548360167
Psychologist - Clinical in Honolulu, HI

Q: What is Warren Loos's NPI number?

The NPI number for Warren Loos is 1548360167. It was assigned to this individual provider in the NPPES registry on September 24, 2006.

Q: What is Warren Loos's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Q: When was this NPI record last updated?

The NPPES record for Warren Loos was last updated on July 26, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since September 24, 2006PECOS EnrolledAccepts Medicare Assignment

4300 WAIALAE AVE APT B1002, HONOLULU, HI 96816(808) 284-2200(888) 668-8527 Get Directions Write a Review

NPPES record last updated: July 26, 2022. Verified against the NPPES registry weekly; last sync: August 02, 2026.

On this page

About Dr. Warren Ross Loos Ph.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WARREN ROSS LOOS PH.D. (NPI 1548360167) is an individual clinical provider in Honolulu, Hawaii, licensed in Hawaii (PSY-792) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1988).

NPPES Registry Identity

NPI1548360167

Entity TypeIndividualMale

Primary Taxonomy103TC0700X

Provider Legal NameDR. WARREN ROSS LOOSCredential: PH.D.

Location Address4300 WAIALAE AVE APT B1002Honolulu, HI 96816-5757

Mailing Address4348 Waialae Ave # 403Honolulu, HI 96816-5767 · (808) 284-2200 · Fax (888) 668-8527

Phone(808) 284-2200

Fax(888) 668-8527

Sole ProprietorYes

Medical School CMSOtherGraduated 1988

Enumeration DateSeptember 24, 2006

Last NPPES UpdateJuly 26, 2022

NPPES CertifiedJuly 26, 2022

✔ NPI 1548360167 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

License✔ Licensed in HI · PSY-792

Definition

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.

4300 WAIALAE AVE APT B1002, Honolulu, HI 96816

Open in Google Maps ↗

Other Identifiers 3

Other232967HI · Hmsa

Other203822633HI · Tricare

Medicaid54463601HI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include HMSA.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Warren Ross Loos Ph.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4981507720

PECOS Enrollment IDI20040217000950

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 96816 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$180.05 typical visit price

range $60.53 – $180.05

Typical copayment $45.01 (range $15.13 – $45.01)

Most-billed visit code 99205

Established Patient

$105.65 typical visit price

range $20.09 – $147.56

Typical copayment $26.41 (range $5.02 – $36.89)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. CLAUDETTE HARUKO OZOA PH.D.

Psychologist (Clinical)

4300 WAIALAE AVE APT B1002
HONOLULU, HI 96816

Honolulu County (808) 284-3601

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Warren Loos's NPI number?

The NPI number for Warren Loos is 1548360167. It was assigned to this individual provider in the NPPES registry on September 24, 2006.

Where is Warren Loos located?

Warren Loos practices at 4300 Waialae Ave Apt B1002, Honolulu, HI 96816. The listed phone number is (808) 284-2200.

What is Warren Loos's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Warren Loos enrolled in Medicare?

Yes. Warren Loos is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Warren Loos accept?

Health plans from HMSA list Warren Loos as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Warren Loos was last updated on July 26, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.