Kathleen D. Polonchek, MD
Family Medicine Physician · Brunswick, ME
Kathleen D. Polonchek, MD is a family medicine physician with a practice address in Brunswick, Maine, and NPI 1659784064, issued on Jun 4, 2014. Check the license (Maine MD21696, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Kathleen D. Polonchek
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- MD21696 ME
Self-reported in NPPES; status is on the state search - Practice location
- 329 Maine St Ste A200, Brunswick, ME 04011
- Phone
- (207) 373-4700
- Enumerated
- Jun 4, 2014
- Record last updated
- Jul 14, 2026
- Fax
- (207) 618-5688
- Medicare enrollment
- Enrolled (PECOS I20171018001867); accepts Medicare assignment
- Medical or professional school
- Northwestern University Feinberg Medical School, 2014
- Entity
- Type 1 · individual
Also registered at 329 Maine St Ste A200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Davis, M.D.Family Medicine Physician1003891177
- Cynthia Dechenes, M.D.Family Medicine Physician1073502803
- Jessica Faraci, MDFamily Medicine Physician1023402674
- Elaina Malis, FNPFamily Nurse Practitioner1740077742
- Ian McConnell, M.D.Internal Medicine Physician1326571266
- Renee Powers, FNPFamily Nurse Practitioner1033545629
Verify Kathleen D. Polonchek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license MD21696Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
70% fewer Medicare Part D claims than the average family medicine physician in 2024
1,048 Medicare Part D claims for 137 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 20 claims were for opioids.
Most prescribed
- Atorvastatin Calcium63 claims
- Lisinopril43 claims
- Levothyroxine Sodium39 claims
- Omeprazole38 claims
- Hydrochlorothiazide36 claims
- Trulicity28 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 practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Mainegeneral Medical CenterAugusta, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
40 family medicine physician records list a practice address in Brunswick
They are 40 of the 981 NPPES records with a practice address in Brunswick, and 1,172 family medicine physician records in Maine.
All 40 in Brunswick → All 1,172 in Maine → Every provider in Brunswick →
Other family medicine physician records in Maine
- Jeffrey Aalberg, MDFalmouth, ME1669400222
- Elizabeth Abbas, DOFarmington, ME1932588100
- Robert Abrams, M.D.Lubec, ME1720067010
- Andrea Abrell, DOAugusta, ME1558525188
- Justine Achille, MDGorham, ME1962962324
- Katie Adams, MDLincoln, ME1154764975
- Thomas Adams, MDSouthwest Harbor, ME1851331565
- Rebecca Adamson, MDLewiston, ME1912313982
- Constance Adler, M.D., F.A.A.F.P.Farmington, ME1487689675
- Devesh Agarwal, M.D.Lincoln, ME1710116876
Common questions
What is Kathleen D. Polonchek, MD's NPI number?
Kathleen D. Polonchek, MD's National Provider Identifier (NPI) is 1659784064, issued on Jun 4, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Kathleen D. Polonchek, MD located?
The NPPES record lists a practice address at 329 Maine St Ste A200, Brunswick, ME, 04011. Phone: (207) 373-4700. Providers update this record themselves, so call before visiting.
How can I verify Kathleen D. Polonchek, MD's license?
NPPES lists Maine license number MD21696, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kathleen D. Polonchek, MD prescribe under Medicare Part D?
In 2024, Kathleen D. Polonchek, MD had 1,048 Medicare Part D claims for 137 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Kathleen D. Polonchek, MD's MIPS final score?
The 2023 MIPS final score is 79.3 of 100, reported for the practice group. 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.