Katherin Peperzak, M.D.
Pain Medicine (Anesthesiology) Physician · Seattle, WA
Katherin Peperzak, M.D. is a pain medicine (anesthesiology) physician with a practice address in Seattle, Washington, and NPI 1588891139, issued on Jun 22, 2009. Check the license (Washington MD60499336, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Katherin Peperzak
- Credential
- M.D.
- Primary taxonomy
- Pain Medicine (Anesthesiology) Physician 207LP2900X
- License number
- MD60499336 WA
Self-reported in NPPES; status is on the state search - Practice location
- 325 9TH Ave, Seattle, WA 98104
- Phone
- (206) 744-3059
- Enumerated
- Jun 22, 2009
- Record last updated
- Dec 5, 2014 (not updated in 12 years: call before relying on the address or phone)
- Medicaid ID
- 1588891139 WA
- Medicare enrollment
- Enrolled (PECOS I20141009001330); accepts Medicare assignment
- Medical or professional school
- University Of Pittsburgh School Of Medicine, 2009
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest pain medicine (anesthesiology) physician records → All 106 in Washington → Look up another NPI →
Also registered at 325 9TH Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Noor Aaf, PA-CMedical Physician Assistant1558394171
- Sheida Aalami, M.D.Internal Medicine Physician1730573296
- Collette AbbottHospitalist Physician1306208293
- Akrm Abdalrahman, MD, MSCritical Care Medicine (Anesthesiology) Physician1801374905
- Martin Abdo, COUNSELORCounselor1821202904
- Nauzley Abedini, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1043637408
Verify Katherin Peperzak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD60499336Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
73% fewer Medicare Part D claims than the average pain medicine (anesthesiology) physician in 2024
473 Medicare Part D claims for 48 beneficiaries, against an average of 1,750 among the 2,982 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims. 190 claims were for opioids.
Most prescribed
- Pregabalin98 claims
- Hydrocodone-Acetaminophen57 claims
- Oxycodone Hcl36 claims
- Buprenorphine Hcl31 claims
- Hydromorphone Hcl31 claims
- Duloxetine Hcl22 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).
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).
Katherin Peperzak among 106 pain medicine (anesthesiology) physician records in Washington
Katherin Peperzak, M.D. is one of 106 pain medicine (anesthesiology) physician records with a practice address in Washington. 78% 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 58% of them.
- NPI issued2009 · 58% of these records are older, 35% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2009 · median 2006 among the 71 with a school on file
- Record last updated2014 · 57% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207LP2900X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pain Medicine (Anesthesiology) Physician providers in Washington
There are 106 pain medicine (anesthesiology) physician records in Washington.
All 106 in Washington → Every provider in Seattle → Pain Medicine (Anesthesiology) Physician nationwide →
The 8 pain medicine (anesthesiology) physician records with the nearest ZIP codes
- Jane Ballantyne, MDSeattle, WA 981041306837232
- Yian Chen, M.D.Seattle, WA 981041235497306
- Sheila Chiu, DOSeattle, WA 981041730388570
- William EdwardsSeattle, WA 981041720145931
- Andreas Grabinsky, MDSeattle, WA 981041548226855
- Ivan Lesnik, M.D.Seattle, WA 981041487617346
- Jordan Starr, M.D.Seattle, WA 981041710373089
- Corrie AndersonSeattle, WA 981051609957950
Common questions
What is Katherin Peperzak, M.D.'s NPI number?
Katherin Peperzak, M.D.'s National Provider Identifier (NPI) is 1588891139, issued on Jun 22, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Katherin Peperzak, M.D. located?
The NPPES record lists a practice address at 325 9TH Ave, Seattle, WA, 98104. Phone: (206) 744-3059. Providers update this record themselves, so call before visiting.
How can I verify Katherin Peperzak, M.D.'s license?
NPPES lists Washington license number MD60499336, 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 Katherin Peperzak, M.D. prescribe under Medicare Part D?
In 2024, Katherin Peperzak, M.D. had 473 Medicare Part D claims for 48 beneficiaries; the average among pain medicine (anesthesiology) physician prescribers was 1,750. Part D covers Medicare prescriptions only.
What is Katherin Peperzak, 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.