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MR. STEPHEN J ZEIMANTZ NP
NPI 1922001478
Nurse Practitioner in Portland, OR

Active since May 28, 2005PECOS Enrolled
20 N SKIDMORE ST, PORTLAND, OR 97217(888) 663-6331(415) 252-7176 Get Directions Write a Review

NPPES record last updated: May 21, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: May 21, 2026, Mar 14, 2025, Jun 13, 2024 and 3 more (6 updates tracked since 2021).

About Mr. Stephen J Zeimantz Np NPPES

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

MR. STEPHEN J ZEIMANTZ NP (NPI 1922001478) is an individual nurse practitioner in Portland, Oregon, licensed in Oregon (201050227NP) and active in the NPI registry since May 2005. He is enrolled in Medicare PECOS and maintains a secondary practice location in Boise.

NPPES Registry Identity

NPI1922001478
Entity TypeIndividualMale
Primary Taxonomy363L00000X
Provider Legal NameMR. STEPHEN J ZEIMANTZCredential: NP
Location Address20 N SKIDMORE STPortland, OR 97217
Mailing Address1 Embarcadero Ctr Ste 1900San Francisco, CA 94111-3723
Phone(888) 663-6331
Fax(415) 252-7176
Sole ProprietorNo
Enumeration DateMay 28, 2005
Last NPPES UpdateMay 21, 20266 updates tracked since enumeration
NPPES CertifiedMay 21, 2026
✔ NPI 1922001478 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363L00000X
Licenses✔ Licensed in OR · 201050227NP✔ Licensed in CO · C-APN.0104929-C-NP✔ Licensed in ID · NP-674A
Definition
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
20 N SKIDMORE ST, Portland, OR 97217
Open in Google Maps ↗

Secondary Practice Location 1

Location 18675 W Ardene StBoise, ID 83709-2601 · Phone (208) 780-3900 · Fax (208) 375-2882

Other Identifiers 1

OtherCS10808ID · Controlled Substance Lic

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 and more.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Stephen J Zeimantz Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 97217 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
$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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
4 suppliers14 claims28 services$4.77 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
4 suppliers12 claims12 services$0.67 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
1 supplier12 claims12 services$185.34 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

DR. JONATHAN J SHIE MD
Family Medicine
20 N SKIDMORE ST
PORTLAND, OR 97217
Multnomah County (888) 663-6331
MR. JAMIE MICHAEL OWENS FNP-C
Nurse Practitioner (Family)
20 N SKIDMORE ST
PORTLAND, OR 97217
Multnomah County (888) 663-6331
DR. NADIA REINHART-MCMILLAN D.O.
Family Medicine
20 N SKIDMORE ST
PORTLAND, OR 97217
Multnomah County (888) 663-6331

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 Stephen Zeimantz's NPI number?

The NPI number for Stephen Zeimantz is 1922001478. It was assigned to this individual provider in the NPPES registry on May 28, 2005.

Where is Stephen Zeimantz located?

Stephen Zeimantz practices at 20 N Skidmore St, Portland, OR 97217. The listed phone number is (888) 663-6331.

What is Stephen Zeimantz's specialty?

The primary specialty registered for this NPI is Nurse Practitioner with taxonomy code 363L00000X.

Is Stephen Zeimantz enrolled in Medicare?

Yes. Stephen Zeimantz is registered in the Medicare PECOS enrollment system.

What insurance does Stephen Zeimantz accept?

Health plans from Moda Health Plan, Inc., PacificSource Health Plans, Providence Health Plan and Select Health list Stephen Zeimantz 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 Stephen Zeimantz was last updated on May 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 months 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.