Sean M. Flaherty, MD, PHD
Obstetrics & Gynecology Physician · Hamden, CT
Sean M. Flaherty, MD, PHD is an obstetrics & gynecology physician with a practice address in Hamden, Connecticut, and NPI 1336170190, issued on Jul 6, 2006. Check the license (Connecticut 041255, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Sean M. Flaherty
- Credential
- MD, PHD
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- 041255 CT
Self-reported in NPPES; status is on the state search - Practice location
- 2446 Whitney Avenue, Hamden, CT 06518
- Phone
- (203) 562-6741
- Enumerated
- Jul 6, 2006
- Record last updated
- Nov 22, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (203) 562-2533
- Medicare enrollment
- Enrolled (PECOS I20100616000071); accepts Medicare assignment
- Medical or professional school
- University Of Vermont College Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 707 in Connecticut → Look up another NPI →
Also registered at 2446 Whitney Avenue
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ami Acharya, M.D.Obstetrics & Gynecology Physician1437131760
- Maria Asis, MDObstetrics & Gynecology Physician1245261098
- Kristen Aversa, MDObstetrics & Gynecology Physician1538153788
- Joseph Grosso, MDObstetrics & Gynecology Physician1891709457
Verify Sean M. Flaherty in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 041255Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
139 Medicare Part D claims for 60 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Yuvafem23 claims
- Estradiol16 claims
- Valacyclovir16 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): 73.6 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: $54.93
2 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US Inc. The 21,429 providers of this specialty with any payment received $1,030.61 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
- Yale UniversityNew Haven, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sean M. Flaherty among 707 obstetrics & gynecology physician records in Connecticut
Sean M. Flaherty, MD, PHD is one of 707 obstetrics & gynecology physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 48% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated1999 · median 2003 among the 488 with a school on file
- Record last updated2017 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Obstetrics & Gynecology Physician providers in Connecticut
There are 707 obstetrics & gynecology physician records in Connecticut.
All 707 in Connecticut → Every provider in Hamden → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Ami Acharya, M.D.Hamden, CT 065181437131760
- Maria Asis, MDHamden, CT 065181245261098
- Kristen Aversa, MDHamden, CT 065181538153788
- Joseph Grosso, MDHamden, CT 065181891709457
- Kristina Rath, MDHamden, CT 065181699790469
- Maria Rhee, MDHamden, CT 065181518965888
- Nina RiveraHamden, CT 065181407219827
- Kavita Schapira, MDHamden, CT 065181558011544
Common questions
What is Sean M. Flaherty, MD, PHD's NPI number?
Sean M. Flaherty, MD, PHD's National Provider Identifier (NPI) is 1336170190, issued on Jul 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sean M. Flaherty, MD, PHD located?
The NPPES record lists a practice address at 2446 Whitney Avenue, Hamden, CT, 06518. Phone: (203) 562-6741. Providers update this record themselves, so call before visiting.
How can I verify Sean M. Flaherty, MD, PHD's license?
NPPES lists Connecticut license number 041255, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Sean M. Flaherty, MD, PHD prescribe under Medicare Part D?
In 2024, Sean M. Flaherty, MD, PHD had 139 Medicare Part D claims for 60 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. Part D covers Medicare prescriptions only.
What is Sean M. Flaherty, MD, PHD's MIPS final score?
The 2023 MIPS final score is 73.6 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.