Karolina Maciag, MD
Infectious Disease Physician · Seattle, WA
Karolina Maciag, MD is an infectious disease physician with a practice address in Seattle, Washington, and NPI 1801250261, issued on Apr 11, 2016. Check the license (Washington MD61320233, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.
- Name
- Karolina Maciag
- Credential
- MD
- Primary taxonomy
- Infectious Disease Physician 207RI0200X
- License number
- MD61320233 WA
Self-reported in NPPES; status is on the state search - Practice location
- 4245 Roosevelt Way NE, Seattle, WA 98105
- Phone
- (206) 598-8750
- Enumerated
- Apr 11, 2016
- Record last updated
- Nov 15, 2022
- Fax
- (206) 598-4939
- Medicaid ID
- 1801250261 WA
- Medicare enrollment
- Enrolled (PECOS I20221122002104); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 2016
- Entity
- Type 1 · individual
8 nearest infectious disease physician records → All 263 in Washington → Look up another NPI →
Also registered at 4245 Roosevelt Way NE
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Kathryn Berkseth, MDEndocrinology, Diabetes & Metabolism Physician1255524914
- Valerie Bobb, PHYSICAL THERAPISTPhysical Therapist1477616639
Verify Karolina Maciag in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWashington Medical Commission
Search for license MD61320233Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
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).
Karolina Maciag among 263 infectious disease physician records in Washington
Karolina Maciag, MD is one of 263 infectious disease physician records with a practice address in Washington. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 84% of them.
- NPI issued2016 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2016 · median 2005 among the 175 with a school on file
- Record last updated2022 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RI0200X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Infectious Disease Physician providers in Washington
There are 263 infectious disease physician records in Washington.
All 263 in Washington → Every provider in Seattle → Infectious Disease Physician nationwide →
The 8 infectious disease physician records with the nearest ZIP codes
- Robert CoombsSeattle, WA 981051225118219
- Sarah BakerSeattle, WA 981041952864068
- John Bui, M.D.Seattle, WA 981041992246136
- Grace Cullen, MDSeattle, WA 981041215498621
- Rand Dadasovich, MDSeattle, WA 981041306377833
- Abigail FesslerSeattle, WA 981041316406101
- Thomas Fitzpatrick, MDSeattle, WA 981041891359543
- Lyall GlaitSeattle, WA 981041790304327
Common questions
What is Karolina Maciag, MD's NPI number?
Karolina Maciag, MD's National Provider Identifier (NPI) is 1801250261, issued on Apr 11, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Karolina Maciag, MD located?
The NPPES record lists a practice address at 4245 Roosevelt Way NE, Seattle, WA, 98105. Phone: (206) 598-8750. Providers update this record themselves, so call before visiting.
How can I verify Karolina Maciag, MD's license?
NPPES lists Washington license number MD61320233, 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.
What is Karolina Maciag, MD'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.