YOON HEE AMY CHANG MD
NPI 1023294311
Internal Medicine - Sleep Medicine in Kirkland, WA

Q: What is Yoon Hee Chang's NPI number?

The NPI number for Yoon Hee Chang is 1023294311. It was assigned to this individual provider in the NPPES registry on January 16, 2008.

Q: What is Yoon Hee Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Sleep Medicine, with taxonomy code 207RS0012X.

Q: When was this NPI record last updated?

The NPPES record for Yoon Hee Chang was last updated on December 4, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.

Active since January 16, 2008PECOS EnrolledAccepts Medicare Assignment

94.21/100

CMS Quality Rating

12303 NE 130TH LN STE 550, KIRKLAND, WA 98034(425) 899-4280 Get Directions Write a Review

NPPES record last updated: December 4, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Dec 4, 2025, Jul 21, 2022, Sep 16, 2019 and 1 more (4 updates tracked since 2017).

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About Yoon Hee Amy Chang Md NPPES

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

YOON HEE AMY CHANG MD (NPI 1023294311) is an individual sleep medicine provider in Kirkland, Washington, licensed in Washington (MD60966285) and active in the NPI registry since January 2008. She is enrolled in Medicare PECOS, is affiliated with Evergreenhealth Medical Center, and is a graduate of Albert Einstein College Of Medicine Of Yeshiva University (2006).

NPPES Registry Identity

NPI1023294311

Entity TypeIndividualFemale

Primary Taxonomy207RS0012X

Provider Legal NameYOON HEE AMY CHANGCredential: MD

Location Address12303 NE 130TH LN STE 550Kirkland, WA 98034-3041

Mailing Address12303 Ne 130th Ln Ste 550Kirkland, WA 98034-3041 · (425) 899-4280

Phone(425) 899-4280

Sole ProprietorNo

Medical School CMSAlbert Einstein College Of Medicine Of Yeshiva UniversityGraduated 2006

Enumeration DateJanuary 16, 2008

Last NPPES UpdateDecember 4, 20254 updates tracked since enumeration

NPPES CertifiedDecember 4, 2025

✔ NPI 1023294311 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Sleep MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RS0012X

License✔ Licensed in WA · MD60966285

Definition

An Internist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

Also ListedInternal MedicineTaxonomy 207R00000X · License MD60966285 (WA)

12303 NE 130TH LN STE 550, Kirkland, WA 98034

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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

Yoon Hee Amy Chang Md 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 ID5799826798

PECOS Enrollment IDI20191119000906

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 7

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 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.

149 services93 patients

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.

74 services58 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.

54 services54 patients

Sleep study including heart rate, breathing, airflow, and effort 95806

A sleep study monitors your heart rate, breathing patterns, airflow, and physical effort while you sleep. It helps identify sleep disorders by tracking your sleep stages and cycles. This data aids doctors in diagnosing and treating sleep-related issues.

51 services48 patients

Sleep study in sleep lab (6 years or older) 95810

A sleep study in a sleep lab is a non-invasive overnight test that monitors your body while you sleep. It helps doctors understand your sleep patterns and identify any issues like sleep apnea or insomnia. You'll be connected to equipment that tracks your heart rate, brain waves, breathing, and movements.

39 services39 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

30 services24 patients

Hospital Affiliations CMS Care Compare

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

Evergreenhealth Medical Center

Acute Care Hospitals · Kirkland, WA

5/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number500124

Location12040 NE 128th StreetKirkland, WA 98034 · King County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98034 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

$143.76 typical visit price

range $63.67 – $189.37

Typical copayment $35.94 (range $15.91 – $47.34)

Most-billed visit code 99204

Established Patient

$111.00 typical visit price

range $21.12 – $155.00

Typical copayment $27.75 (range $5.28 – $38.75)

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.

94.21/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

97.15

Promoting Interoperability

100

Improvement Activities

Cost

83.57

Reported Quality Measures

Breast Cancer Screening

77%248 patients4/55-star benchmark: 93%

Cervical Cancer Screening

34%350 patients2/55-star benchmark: 98%

Closing the Referral Loop: Receipt of Specialist Report

26%178 patients2/55-star benchmark: 87%

Colorectal Cancer Screening

50%661 patients3/55-star benchmark: 88%

Controlling High Blood Pressure

74%468 patients4/55-star benchmark: 91%

Diabetes: Eye Exam

21%146 patients1/55-star benchmark: 100%

Diabetes: Hemoglobin A1c (HbA1c) Poor Control (>9%)

Lower rates are better for this measure.

12%146 patients4/55-star benchmark: 91%

Documentation of Current Medications in the Medical Record

95%2,056 patients4/55-star benchmark: 100%

e-Prescribing

100%35 patients5/55-star benchmark: 100%

Falls: Screening for Future Fall Risk

40%357 patients2/55-star benchmark: 100%

Functional Status Assessments for Heart Failure

0%28 patients

Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan

36%1,166 patients2/55-star benchmark: 98%

Preventive Care and Screening: Screening for Depression and Follow-Up Plan

21%783 patients1/55-star benchmark: 97%

Preventive Care and Screening: Screening for High Blood Pressure and Follow-Up Documented

36%1,099 patients3/55-star benchmark: 61%

Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention

Patients combinedPopulations: 95% · 589 patients

Patients screened: 98% · 589 patients

39%23 patients2/55-star benchmark: 100%

Provide Patients Electronic Access to Their Health Information

100%552 patients5/55-star benchmark: 100%

Statin Therapy for the Prevention and Treatment of Cardiovascular Disease

76%420 patients3/55-star benchmark: 91%

Use of High-Risk Medications in Older Adults

Lower rates are better for this measure.

Patients appropriateDiagnosis: 7% · 380 patients

Patients totalRate: 20% · 380 patients

19%380 patients3/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 16

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

Tubing with integrated heating element for use with positive airway pressure device A4604