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ALIVIA MIYON YOON
NPI 1154092591
Nurse Anesthetist, Certified Registered in Portland, OR

Active since September 24, 2021Accepts Medicare Assignment
3181 SW SAM JACKSON PARK RD, PORTLAND, OR 97239(503) 494-7641 Get Directions Write a Review

NPPES record last updated: June 10, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 10, 2025, Sep 12, 2024, Sep 24, 2021 (3 updates tracked since 2021).

About Alivia Miyon Yoon NPPES

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

ALIVIA MIYON YOON (NPI 1154092591) is an individual nurse anesthetist, certified registered in Portland, Oregon, licensed in Oregon (10028942) and active in the NPI registry since September 2021. She is affiliated with Ohsu Hospital And Clinics, maintains a secondary practice location in Happy Valley, and is a graduate of Oregon Health Sciences University School Of Medicine (2024).

NPPES Registry Identity

NPI1154092591
Entity TypeIndividualFemale
Primary Taxonomy367500000X
Provider Legal NameALIVIA MIYON YOON
Location Address3181 SW SAM JACKSON PARK RDPortland, OR 97239-3011
Mailing Address3181 Sw Sam Jackson Park Rd, Mail Code Sjh-2Portland, OR 97239 · (503) 494-7641
Phone(503) 494-7641
Sole ProprietorNo
Medical School CMSOregon Health Sciences University School Of MedicineGraduated 2024
Enumeration DateSeptember 24, 2021
Last NPPES UpdateJune 10, 20253 updates tracked since enumeration
NPPES CertifiedJune 10, 2025
✔ NPI 1154092591 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367500000X
License✔ Licensed in OR · 10028942
Definition
(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.
3181 SW SAM JACKSON PARK RD, Portland, OR 97239
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Other Names 1

Former Name (1)Alivia Miyon Chang

Secondary Practice Location 1

Location 112314 SE Cedar CtHappy Valley, OR 97086-7114 · Phone (503) 896-8712

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

Alivia Miyon Yoon 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 ID6507306412
PECOS Enrollment IDI20240906000407

Medicare Billing Reassignment

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

University Anesthesiology Associates, LLC
Anesthesiology
3181 SW SAM JACKSON PARK RD, MAILCODE: SJH-2
Portland, OR 97239
  • Reassigned Medicare billing, Oregon enrollment
  • 279 clinicians in this Medicare group
NPI 1841217817 (503) 494-4910

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

Hospital Affiliations CMS Care Compare

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

Ohsu Hospital And Clinics

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number380009
Location3181 SW Sam Jackson Park RoadPortland, OR 97239 · Multnomah County
Emergency services Birthing friendly

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
$134.16 typical visit price
range $58.99 – $176.88
Typical copayment $33.54 (range $14.74 – $44.22)
Most-billed visit code 99204
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.

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.

DONALD RICHARD SULLIVAN MD
Internal Medicine (Pulmonary Disease)
3181 SW SAM JACKSON PARK RD, UHN67
PORTLAND, OR 97239
Multnomah County (503) 494-6949
MRS. ANJALEE NIX ROWE NP
Nurse Practitioner (Acute Care)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-3988
REEM HASAN MD
Internal Medicine
3181 SW SAM JACKSON PARK RD, PPV 350
PORTLAND, OR 97239
Multnomah County (503) 494-8562
DR. AMANDA D BALL PSY.D
Psychologist (Clinical)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-6176
SUNSHINE WELSCH LMT
Massage Therapist
3181 SW SAM JACKSON PARK RD, 7D19
PORTLAND, OR 97239
Multnomah County (503) 494-8349
DR. ROBERT GENE MEALER M.D., PH.D.
Psychiatry & Neurology (Psychiatry)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-6176
GREGORY HALL MD
Radiology (Diagnostic Radiology)
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 418-0990
DR. BURHAN AHMED MIAN MD
Student in an Organized Health Care Education/Training Program
3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239
Multnomah County (503) 494-8311

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 Alivia Yoon's NPI number?

The NPI number for Alivia Yoon is 1154092591. It was assigned to this individual provider in the NPPES registry on September 24, 2021. The provider is also known as Alivia Miyon Chang.

Where is Alivia Yoon located?

Alivia Yoon practices at 3181 SW Sam Jackson Park Rd, Portland, OR 97239. The listed phone number is (503) 494-7641.

What is Alivia Yoon's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Alivia Yoon enrolled in Medicare?

Yes. Alivia Yoon 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 Alivia Yoon's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alivia Yoon reassigns Medicare benefits to University Anesthesiology Associates, LLC (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 Alivia Yoon's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Alivia Yoon affiliated with any hospitals?

According to CMS data, Alivia Yoon is affiliated with Ohsu Hospital And Clinics.

When was this NPI record last updated?

The NPPES record for Alivia Yoon was last updated on June 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.