Matthew Niemi, M.D.
Nephrology Physician · Worcester, MA
Matthew Niemi, M.D. is a nephrology physician with a practice address in Worcester, Massachusetts, and NPI 1053548321, issued on Jun 15, 2009. Check the license (Massachusetts 251074, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Matthew Niemi
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 251074 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Lake Ave N, Worcester, MA 01655
- Phone
- (508) 856-3155
- Enumerated
- Jun 15, 2009
- Entity
- Type 1 · individual
Also registered at 55 Lake Ave N
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nawal Aamir, MDInternal Medicine Physician1588248926
- Amarys Abadie, CRNACertified Registered Nurse Anesthetist1992936843
- Paula Abate, NPPediatric Nurse Practitioner1336265909
- Aly AbayazeedDiagnostic Radiology Physician1821221946
- Zainab AbbasInternal Medicine Physician1609028000
- Mary-Alice Abbott, MDPediatrics Physician1982799417
Verify Matthew Niemi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 251074Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
33% fewer Medicare Part D claims than the average nephrology physician in 2024
1,019 Medicare Part D claims for 211 beneficiaries, against an average of 1,511 among the 8,473 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Calcitriol117 claims
- Lisinopril113 claims
- Losartan Potassium105 claims
- Jardiance82 claims
- Furosemide62 claims
- Amlodipine Besylate53 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 Medicare quality score for 2023: 97 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: $131.41
2 payments, mostly food and beverage; the largest payer was Corcept Therapeutics. The 6,365 providers of this specialty with any payment received $3,068.36 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.
One hospital or facility affiliation
- Umass Memorial Medical Group IncMarlborough, MA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Nephrology Physician providers in Massachusetts
There are 314 nephrology physician records in Massachusetts.
Other nephrology physician records in Massachusetts
- Amtul Aala, MDBoston, MA1174946347
- Reza Abdi, MDBoston, MA1356359368
- Vivian AbernethyBoston, MA1710960232
- Rekha Abichandani, M.D.Cambridge, MA1912033598
- Konstantin Abramov, M.D.Worcester, MA1992854707
- Krishna Agarwal, M.B.B.S.Springfield, MA1477916120
- Ahsan Alam, M.D.Boston, MA1598885980
- David Albert, M.D.Pittsfield, MA1386692531
- Saif Alenizi, M.D., M.P.H.Boston, MA1255680997
- Howard Alfred, M.D.Worcester, MA1942283627
Common questions
What is Matthew Niemi, M.D.'s NPI number?
Matthew Niemi, M.D.'s National Provider Identifier (NPI) is 1053548321, issued on Jun 15, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Niemi, M.D. located?
The NPPES record lists a practice address at 55 Lake Ave N, Worcester, MA, 01655. Phone: (508) 856-3155. Providers update this record themselves, so call before visiting.
How can I verify Matthew Niemi, M.D.'s license?
NPPES lists Massachusetts license number 251074, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://www.mass.gov/orgs/board-of-registration-in-medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Matthew Niemi, M.D. prescribe under Medicare Part D?
In 2024, Matthew Niemi, M.D. had 1,019 Medicare Part D claims for 211 beneficiaries; the average among nephrology physician prescribers was 1,511. Part D covers Medicare prescriptions only.
What is Matthew Niemi, M.D.'s Medicare quality score?
The 2023 MIPS final score is 97 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.