Ewa Niemierko, M.D.
Hematology & Oncology Physician · Concord, MA
Ewa Niemierko, M.D. is a hematology & oncology physician with a practice address in Concord, Massachusetts, and NPI 1447233549, issued on Nov 22, 2005. Check the license (Massachusetts 160258, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Ewa Niemierko
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- 160258 MA
Self-reported in NPPES; status is on the state search - Practice location
- 131 Ornac, Concord, MA 01742
- Phone
- (978) 287-3436
- Enumerated
- Nov 22, 2005
- Record last updated
- Oct 2, 2025
- Fax
- (978) 287-3642
- Medicaid ID
- 0121746 MA
- Medicare enrollment
- Enrolled (PECOS I20100928001285); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 461 in Massachusetts → Look up another NPI →
Also registered at 131 Ornac
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Virginia Croke, NPAdult Health Nurse Practitioner1851360580
Verify Ewa Niemierko in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 160258Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
81 Medicare Part D claims for 42 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Eliquis20 claims
- Anastrozole14 claims
- Hydroxyurea11 claims
- Letrozole11 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): 86.3 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 2 group practices
- Dana-Farber Cancer Institute, Inc.South Weymouth, MA
- Sturdy Health IncAttleboro, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ewa Niemierko among 461 hematology & oncology physician records in Massachusetts
Ewa Niemierko, M.D. is one of 461 hematology & oncology physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 86% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1981 · median 2004 among the 303 with a school on file
- Record last updated2025 · 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 Massachusetts 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 Massachusetts
There are 461 hematology & oncology physician records in Massachusetts.
All 461 in Massachusetts → Every provider in Concord → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Eddy Chen, M.D.Concord, MA 017421730376898
- Jon Dubois, M.D.Concord, MA 017421922080241
- Susan Sajer, M.D.Concord, MA 017421154304251
- Susan Donohue, M.D.Marlborough, MA 017521063493302
- Mona Kaddis, M.D.Milford, MA 017571003853680
- Daniel Roberts, M.D.Milford, MA 017571710240171
- Humberto Rossi, M.D.Milford, MA 017571245213347
- Natalie SinclairMilford, MA 017571740315654
Common questions
What is Ewa Niemierko, M.D.'s NPI number?
Ewa Niemierko, M.D.'s National Provider Identifier (NPI) is 1447233549, issued on Nov 22, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ewa Niemierko, M.D. located?
The NPPES record lists a practice address at 131 Ornac, Concord, MA, 01742. Phone: (978) 287-3436. Providers update this record themselves, so call before visiting.
How can I verify Ewa Niemierko, M.D.'s license?
NPPES lists Massachusetts license number 160258, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ewa Niemierko, M.D. prescribe under Medicare Part D?
In 2024, Ewa Niemierko, M.D. had 81 Medicare Part D claims for 42 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Ewa Niemierko, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.3 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.