Katherine Chang, M.D.
Hematology & Oncology Physician · Seattle, WA
Katherine Chang, M.D. is a hematology & oncology physician with a practice address in Seattle, Washington, and NPI 1427289982, issued on Jul 31, 2009. Check the license (Washington MD61291763, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Katherine Chang
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License numbers
- MD61291763 WA
54376 MN
Self-reported in NPPES; status is on the state search - Practice location
- 825 Eastlake Ave., Seattle, WA 98109
- Phone
- (206) 520-5000
- Enumerated
- Jul 31, 2009
- Record last updated
- Oct 20, 2022
- Medicare enrollment
- Enrolled (PECOS I20220829003324); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 476 in Washington → Look up another NPI →
Also registered at 825 Eastlake Ave.
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Matthew Givens, MDHospice and Palliative Medicine (Emergency Medicine) Physician1407349509
Verify Katherine Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61291763Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
480 Medicare Part D claims for 97 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 23 claims were for opioids.
Most prescribed
- Eliquis37 claims
- Anastrozole33 claims
- Ondansetron Hcl25 claims
- Potassium Chloride25 claims
- Brukinsa23 claims
- Loperamide22 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 93.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $17.23
1 payment: food and beverage; the largest payer was Sanofi Pasteur Inc. The 8,560 providers of this specialty with any payment received $7,481.41 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- The Association OF University PhysiciansSeattle, WA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Chang among 476 hematology & oncology physician records in Washington
Katherine Chang, M.D. is one of 476 hematology & oncology physician records with a practice address in Washington. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 52% of them.
- NPI issued2009 · 52% of these records are older, 44% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2009 · median 2006 among the 294 with a school on file
- Record last updated2022 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in Washington
There are 476 hematology & oncology physician records in Washington.
All 476 in Washington → Every provider in Seattle → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Nicholas Burwick, M.D.Seattle, WA 981091942234695
- Rekha Chandran, MDSeattle, WA 981091457393878
- Elena Chiorean, M.D.Seattle, WA 981091891750808
- Eric Collisson, MDSeattle, WA 981091093731143
- Jason Comer, M.D.Seattle, WA 981091396719910
- Ying Cui, MD PHDSeattle, WA 981091639191448
- Lawrence Fong, MDSeattle, WA 981091316901630
- Boglarka Gyurkocza, M.D.Seattle, WA 981091366474892
Common questions
What is Katherine Chang, M.D.'s NPI number?
Katherine Chang, M.D.'s National Provider Identifier (NPI) is 1427289982, issued on Jul 31, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Chang, M.D. located?
The NPPES record lists a practice address at 825 Eastlake Ave., Seattle, WA, 98109. Phone: (206) 520-5000. Providers update this record themselves, so call before visiting.
How can I verify Katherine Chang, M.D.'s license?
NPPES lists Washington license number MD61291763, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Katherine Chang, M.D. prescribe under Medicare Part D?
In 2024, Katherine Chang, M.D. had 480 Medicare Part D claims for 97 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Katherine Chang, M.D.'s MIPS final score?
The 2023 MIPS final score is 93.1 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.