Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

SIDONIE B JUSTYNSKI
NPI 1174027601
Nurse Practitioner - Psychiatric/Mental Health in Yuma, AZ

Q: What is Sidonie Justynski's NPI number?

The NPI number for Sidonie Justynski is 1174027601. It was assigned to this individual provider in the NPPES registry on March 20, 2018. The provider is also known as Sidonie Beatrice Ngankeu.

Q: What is Sidonie Justynski's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Q: When was this NPI record last updated?

The NPPES record for Sidonie Justynski was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 days 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 March 20, 2018PECOS EnrolledAccepts Medicare Assignment

1394 W 16TH ST, YUMA, AZ 85364(928) 770-2053(928) 298-6946 Get Directions Write a Review

NPPES record last updated: June 24, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 3, 2026, Mar 25, 2025, Jul 17, 2024 and 3 more (6 updates tracked since 2018).

On this page

About Sidonie B Justynski NPPES

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

SIDONIE B JUSTYNSKI (NPI 1174027601) is an individual psychiatric/mental health provider in Yuma, Arizona, licensed in Arizona (AP11179) and active in the NPI registry since March 2018. She is enrolled in Medicare PECOS, is affiliated with Riverside Regional Medical Center, and maintains 3 additional practice locations.

NPPES Registry Identity

NPI1174027601

Entity TypeIndividualFemale

Primary Taxonomy363LP0808X

Provider Legal NameSIDONIE B JUSTYNSKI

Location Address1394 W 16TH STYuma, AZ 85364-4430

Mailing Address2407 Clear Creek RdKilleen, TX 76549-5721 · (254) 519-8803

Phone(928) 770-2053

Fax(928) 298-6946

Sole ProprietorYes

Medical School CMSOtherGraduated 2019

Enumeration DateMarch 20, 2018

Last NPPES UpdateJune 24, 20266 updates tracked since enumeration

NPPES CertifiedJune 24, 2026

✔ NPI 1174027601 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyNurse Practitioner · Psychiatric/Mental HealthPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code363LP0808X

Licenses✔ Licensed in AZ · AP11179✔ Licensed in VA · 0024191050

Also ListedNurse Practitioner · FamilyTaxonomy 363LF0000X · License AP136386 (TX)

1394 W 16TH ST, Yuma, AZ 85364

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Other Names 1

Former Name (1)Sidonie Beatrice Ngankeu

Secondary Practice Locations 3

Location 12407 Clear Creek RdKilleen, TX 76549-5721 · Phone (254) 519-8803

Location 22244 Executive DrHampton, VA 23666-2430 · Phone (757) 827-1001

Location 31213 Hermann DrHouston, TX 77004-7018 · Phone (346) 270-7321

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Blue Cross Blue Shield of Arizona, Oscar Health Plan, Inc. 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 and accepts Medicare assignment

Sidonie B Justynski 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 ID3577898683

PECOS Enrollment IDI20250403000765

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.

Hospital Affiliations CMS Care Compare

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

Riverside Regional Medical Center

Acute Care Hospitals · Newport News, VA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number490052

Location500 J Clyde Morris BlvdNewport News, VA 23601 · Newport News City County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85364 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

$85.89 typical visit price

range $55.44 – $168.60

Typical copayment $21.47 (range $13.86 – $42.15)

Most-billed visit code 99203

Established Patient

$98.00 typical visit price

range $17.72 – $137.41

Typical copayment $24.50 (range $4.43 – $34.35)

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 6

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

NORTHSIDE MEDICAL CLINIC WALK IN LLC

Clinic/Center (Urgent Care)

1394 W 16TH ST
YUMA, AZ 85364

Yuma County (928) 539-0055

RICK G CLARK DO

Family Medicine

1394 W 16TH ST
YUMA, AZ 85364

Yuma County (928) 539-0055

RACHEL AMANDA FRY PA-C

Physician Assistant

1394 W 16TH ST
YUMA, AZ 85364

Yuma County (928) 539-0055

DANIEL R ORTIZ PA-C

Physician Assistant

1394 W 16TH ST
YUMA, AZ 85364

Yuma County (928) 539-0055

TOR ERIK WILLIAM WALLSTROM M.D.

Family Medicine

1394 W 16TH ST
YUMA, AZ 85364

Yuma County (928) 539-0055

SARAH MASAKO DE VERA PA-C

Physician Assistant (Medical)

1394 W 16TH ST
YUMA, AZ 85364

Yuma County (928) 539-0055

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 Sidonie Justynski's NPI number?

The NPI number for Sidonie Justynski is 1174027601. It was assigned to this individual provider in the NPPES registry on March 20, 2018. The provider is also known as Sidonie Beatrice Ngankeu.

Where is Sidonie Justynski located?

Sidonie Justynski practices at 1394 W 16th St, Yuma, AZ 85364. The listed phone number is (928) 770-2053.

What is Sidonie Justynski's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.

Is Sidonie Justynski enrolled in Medicare?

Yes. Sidonie Justynski 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 Sidonie Justynski accept?

Health plans from Blue Cross Blue Shield of Arizona, Blue Cross and Blue Shield of Texas, Oscar Health Plan, Inc., Oscar Insurance Company and Providence Health Plan and 1 other insurer list Sidonie Justynski 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 Sidonie Justynski affiliated with any hospitals?

According to CMS data, Sidonie Justynski is affiliated with Riverside Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Sidonie Justynski was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 53 days 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.