Mary K. Decesare-Flaherty, NP.C
Nurse Practitioner · Worcester, MA
Mary K. Decesare-Flaherty, NP.C is a nurse practitioner with a practice address in Worcester, Massachusetts, and NPI 1629357900, issued on Aug 4, 2011. Check the license (Massachusetts RN2262890, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mary K. Decesare-Flaherty
- Credential
- NP.C
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- RN2262890 MA
Self-reported in NPPES; status is on the state search - Practice location
- 25 Oak Ave, Worcester, MA 01605
- Phone
- (507) 756-6293
- Enumerated
- Aug 4, 2011
- Record last updated
- Aug 4, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (508) 756-9404
- Medicare enrollment
- Enrolled (PECOS I20110912000514); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 3,480 in Massachusetts → Look up another NPI →
Also registered at 25 Oak Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Charles Birbara, M.D.Specialist1093705410
- Richard Eisenberg, MDOphthalmology Physician1093765455
- Teri Kleinberg, MDOphthalmology Physician1609187046
- Charles Roberts, M.D.Ophthalmology Physician1881884914
- Stuart Weisman, MDOphthalmology Physician1922023787
Verify Mary K. Decesare-Flaherty in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license RN2262890Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
52% more Medicare Part D claims than the average nurse practitioner in 2024
1,685 Medicare Part D claims for 443 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 6% of claims.
Most prescribed
- Tamsulosin Hcl445 claims
- Finasteride252 claims
- Oxybutynin Chloride Er128 claims
- Alfuzosin Hcl Er100 claims
- Cefpodoxime Proxetil89 claims
- Oxybutynin Chloride87 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): 100 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).
Industry payments in 2024: $48.98
2 payments; by number, the most common kind was food and beverage; the largest payer was Axonics, Inc. The 38,884 providers of this specialty with any payment received $791.64 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.
Bills Medicare through one group practice
- Worcester Urological Associates IncWorcester, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mary K. Decesare-Flaherty among 3,480 nurse practitioner records in Massachusetts
Mary K. Decesare-Flaherty, NP.C is one of 3,480 nurse practitioner records with a practice address in Massachusetts. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 38% of them.
- NPI issued2011 · 38% of these records are older, 60% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated2011 · median 2017 among the 1,963 with a school on file
- Record last updated2011 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
499 nurse practitioner records list a practice address in Worcester
They are 499 of the 13,166 NPPES records with a practice address in Worcester, and 3,480 nurse practitioner records in Massachusetts.
All 3,480 in Massachusetts → Every provider in Worcester → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Josephine Banigo, NPWorcester, MA 016051780658021
- Jane Baron, NPWorcester, MA 016051992779243
- Alice Bonner, GNPWorcester, MA 016051366427551
- Cindy Brown, NPWorcester, MA 016051992779227
- Mary Burke, NPWorcestor, MA 016051255311270
- Anne Crowell, GNPWorcester, MA 016051598744559
- Susanne Duszlak, NPWorcester, MA 016051811961477
- Marylu Garrow, NPWorcester, MA 016051316918295
Common questions
What is Mary K. Decesare-Flaherty, NP.C's NPI number?
Mary K. Decesare-Flaherty, NP.C's National Provider Identifier (NPI) is 1629357900, issued on Aug 4, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mary K. Decesare-Flaherty, NP.C located?
The NPPES record lists a practice address at 25 Oak Ave, Worcester, MA, 01605. Phone: (507) 756-6293. Providers update this record themselves, so call before visiting.
How can I verify Mary K. Decesare-Flaherty, NP.C's license?
NPPES lists Massachusetts license number RN2262890, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.
How much does Mary K. Decesare-Flaherty, NP.C prescribe under Medicare Part D?
In 2024, Mary K. Decesare-Flaherty, NP.C had 1,685 Medicare Part D claims for 443 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Mary K. Decesare-Flaherty, NP.C's MIPS final score?
The 2023 MIPS final score is 100 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.