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THOMAS ROBERT STASSEN PA-C
NPI 1356694350
Physician Assistant in Portland, OR

Active since October 16, 2012PECOS EnrolledAccepts Medicare Assignment
93.6/100
CMS Quality Rating
5308 N LOMBARD ST, PORTLAND, OR 97203(888) 227-3312 Get Directions Write a Review

NPPES record last updated: October 19, 2021. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Oct 19, 2021, Sep 24, 2020, Jul 9, 2019 and 1 more (4 updates tracked since 2016).

About Thomas Robert Stassen Pa-c NPPES

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

THOMAS ROBERT STASSEN PA-C (NPI 1356694350) is an individual physician assistant in Portland, Oregon, licensed in Washington (PA61117345) and active in the NPI registry since October 2012. He is enrolled in Medicare PECOS, is affiliated with Providence Portland Medical Center, and is a graduate of Other (2012).

NPPES Registry Identity

NPI1356694350
Entity TypeIndividualMale
Primary Taxonomy363A00000X
Provider Legal NameTHOMAS ROBERT STASSENCredential: PA-C
Location Address5308 N LOMBARD STPortland, OR 97203-4218
Mailing AddressPo Box 3158Portland, OR 97208-3158
Phone(888) 227-3312
Sole ProprietorNo
Medical School CMSOtherGraduated 2012
Enumeration DateOctober 16, 2012
Last NPPES UpdateOctober 19, 20214 updates tracked since enumeration
NPPES CertifiedOctober 19, 2021
✔ NPI 1356694350 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
Licenses✔ Licensed in WA · PA61117345✔ Licensed in OR · PA157168
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
5308 N LOMBARD ST, Portland, OR 97203
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Other Identifiers 1

Medicaid500652003OR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Premera Blue Cross Blue Shield of Alaska, Providence Health Plan.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

Thomas Robert Stassen Pa-c 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 ID3870745870
PECOS Enrollment IDI20121219000395
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.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
22 services22 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
21 services21 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
16 services16 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
12 services12 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Providence Portland Medical Center

Acute Care Hospitals · Portland, OR
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380061
Location4805 NE Glisan StreetPortland, OR 97213 · Multnomah County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97203 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
$90.51 typical visit price
range $58.99 – $176.88
Typical copayment $22.62 (range $14.74 – $44.22)
Most-billed visit code 99203
Established Patient
$73.28 typical visit price
range $19.32 – $144.79
Typical copayment $18.32 (range $4.83 – $36.19)
Most-billed visit code 99213
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.

93.6/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality87.97
Promoting Interoperability99
Improvement Activities40
Cost91.53

Other Providers at the Same Location NPPES 3

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

MS. TANYA LYNN WAYNE PA-C
Physician Assistant
5308 N LOMBARD ST
PORTLAND, OR 97203
Multnomah County (888) 227-3312
JACOB SALDIVAR
Physician Assistant
5308 N LOMBARD ST
PORTLAND, OR 97203
Multnomah County (888) 227-3312
MADELENE PENA
Physician Assistant
5308 N LOMBARD ST
PORTLAND, OR 97203
Multnomah County (888) 227-5155

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 Thomas Stassen's NPI number?

The NPI number for Thomas Stassen is 1356694350. It was assigned to this individual provider in the NPPES registry on October 16, 2012.

Where is Thomas Stassen located?

Thomas Stassen practices at 5308 N Lombard St, Portland, OR 97203. The listed phone number is (888) 227-3312.

What is Thomas Stassen's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Thomas Stassen enrolled in Medicare?

Yes. Thomas Stassen 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 Thomas Stassen accept?

Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Thomas Stassen 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.

Is Thomas Stassen affiliated with any hospitals?

According to CMS data, Thomas Stassen is affiliated with Providence Portland Medical Center.

When was this NPI record last updated?

The NPPES record for Thomas Stassen was last updated on October 19, 2021. 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.