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DR. DARREN MARSHALL JANZEN PSY.D.
NPI 1548393689
Psychologist - Clinical in Portland, OR

Active since March 14, 2007PECOS EnrolledAccepts Medicare Assignment
97.83/100
CMS Quality Rating
707 SW GAINES ST, MAIL CODE CDRC, PORTLAND, OR 97239(503) 494-3526(503) 494-6868 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Dr. Darren Marshall Janzen Psy.d. NPPES

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

DR. DARREN MARSHALL JANZEN PSY.D. (NPI 1548393689) is an individual clinical provider in Portland, Oregon, licensed in Idaho (PSY-202344) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2005).

NPPES Registry Identity

NPI1548393689
Entity TypeIndividualMale
Primary Taxonomy103TC0700X
Provider Legal NameDR. DARREN MARSHALL JANZENCredential: PSY.D.
Location Address707 SW GAINES ST, MAIL CODE CDRCPortland, OR 97239-2901
Mailing Address707 Sw Gaines St, Mail Code CdrcPortland, OR 97239-2901 · (503) 494-3526 · Fax (503) 494-6868
Phone(503) 494-3526
Fax(503) 494-6868
Sole ProprietorNo
Medical School CMSOtherGraduated 2005
Enumeration DateMarch 14, 2007
Last NPPES UpdateJuly 8, 2007
✔ NPI 1548393689 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 ID · PSY-202344
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.
707 SW GAINES ST, Portland, OR 97239
Open in Google Maps ↗

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Darren Marshall Janzen Psy.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 ID1557468584
PECOS Enrollment IDI20070525000163
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.

Medicare Billing Reassignment

Medicare enrollment records show Darren Janzen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Professional Services
Same address
Multi-Specialty
707 SW GAINES ST
Portland, OR 97239
  • Reassigned Medicare billing, Oregon enrollment
  • 2,212 clinicians in this Medicare group
NPI 1073767588 (503) 494-9000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97239 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
$176.88 typical visit price
range $58.99 – $176.88
Typical copayment $44.22 (range $14.74 – $44.22)
Most-billed visit code 99205
Established Patient
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

97.83/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality80.97
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

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

MS. MARGARET WOLF
Occupational Therapist
707 SW GAINES ST
PORTLAND, OR 97239
Multnomah County (503) 494-8095
MRS. LEAH BJORNSKOV WESSENBERG FNP
Nurse Practitioner (Family)
707 SW GAINES ST
PORTLAND, OR 97239
Multnomah County (503) 494-7859
DR. MICHAEL AVRAM HARRIS PH.D.
Psychologist (Clinical Child & Adolescent)
707 SW GAINES ST
PORTLAND, OR 97239
Multnomah County (503) 494-8942
DANIELLE MOYER PHD
Psychologist (Clinical)
707 SW GAINES ST
PORTLAND, OR 97239
Multnomah County (503) 494-6337
DAVID L. OLESON PT
Physical Therapist
707 SW GAINES ST
PORTLAND, OR 97239
Multnomah County (800) 452-3563
DR. DIANA VAZQUEZ DUQUE PHD
Counselor (Mental Health)
707 SW GAINES ST
PORTLAND, OR 97239
Multnomah County (503) 494-0199
JESSICA NASON
Physical Therapist
707 SW GAINES ST
PORTLAND, OR 97239
Multnomah County (860) 917-2128
UNIVERSITY PROFESSIONAL SERVICES
Clinic/Center (Multi-Specialty)
707 SW GAINES ST
PORTLAND, OR 97239
Multnomah County (503) 494-9000

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 Darren Janzen's NPI number?

The NPI number for Darren Janzen is 1548393689. It was assigned to this individual provider in the NPPES registry on March 14, 2007.

Where is Darren Janzen located?

Darren Janzen practices at 707 SW Gaines St Mail Code Cdrc, Portland, OR 97239. The listed phone number is (503) 494-3526.

What is Darren Janzen's specialty?

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

Is Darren Janzen enrolled in Medicare?

Yes. Darren Janzen 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.

Which organization bills Medicare for Darren Janzen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Darren Janzen reassigns Medicare benefits to University Professional Services (Portland, OR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Darren Janzen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Darren Janzen accept?

Health plans from Moda Health Plan, Inc., PacificSource Health Plans and Providence Health Plan list Darren Janzen 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 Darren Janzen was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.