Mary K. Flynn, M.D.
Family Medicine Physician · Worcester, MA
Mary K. Flynn, M.D. is a family medicine physician with a practice address in Worcester, Massachusetts, and NPI 1497982102, issued on Jun 20, 2009. Check the license (Massachusetts 250519, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mary K. Flynn
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 250519 MA
Self-reported in NPPES; status is on the state search - Practice location
- 116 Belmont St, Worcester, MA 01605
- Phone
- (508) 334-1102
- Enumerated
- Jun 20, 2009
- Record last updated
- May 23, 2012 (not updated in 14 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120920000254); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 2009
- Entity
- Type 1 · individual
Also registered at 116 Belmont St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lindsey Nogueira-MayoAddiction (Substance Use Disorder) Counselor1821693375
- Ellen Ruell, PA-CPhysician Assistant1790701977
Verify Mary K. Flynn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 250519Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
86% fewer Medicare Part D claims than the average family medicine physician in 2024
506 Medicare Part D claims for 142 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 23 claims were for opioids.
Most prescribed
- Atorvastatin Calcium41 claims
- Amlodipine Besylate21 claims
- Lisinopril21 claims
- Levothyroxine Sodium14 claims
- Albuterol Sulfate Hfa13 claims
- Tamsulosin Hcl13 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): 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).
Bills Medicare through one group practice
- Reliant Medical Group IncWorcesteer, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
168 family medicine physician records list a practice address in Worcester
They are 168 of the 13,166 NPPES records with a practice address in Worcester, and 2,265 family medicine physician records in Massachusetts.
All 168 in Worcester → All 2,265 in Massachusetts → Every provider in Worcester →
Other family medicine physician records in Massachusetts
- Salah Abass, M.D.Methuen, MA1417959776
- Majed Abbas, MDLowell, MA1346827870
- Sheila Abdallah, MDWorcester, MA1821356312
- Omar Abduljabar, M.D.Springfield, MA1770978843
- Jonathan Abel, DOSpringfield, MA1700897196
- Mohamed Abib, MDSturbridge, MA1639281090
- Kevin Abraham, M.D.Worcester, MA1689037673
- Janet Abrahamian, M.D.West Boylston, MA1932156627
- John Abramson, M.D.Ipswich, MA1275613903
- John Paul Abroguena, MDPlainville, MA1235361080
Common questions
What is Mary K. Flynn, M.D.'s NPI number?
Mary K. Flynn, M.D.'s National Provider Identifier (NPI) is 1497982102, issued on Jun 20, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Mary K. Flynn, M.D. located?
The NPPES record lists a practice address at 116 Belmont St, Worcester, MA, 01605. Phone: (508) 334-1102. Providers update this record themselves, so call before visiting.
How can I verify Mary K. Flynn, M.D.'s license?
NPPES lists Massachusetts license number 250519, 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 Mary K. Flynn, M.D. prescribe under Medicare Part D?
In 2024, Mary K. Flynn, M.D. had 506 Medicare Part D claims for 142 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Mary K. Flynn, M.D.'s MIPS final 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), 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.