Sean Robert McMahon, M.D.
Cardiovascular Disease Physician · Hartford, CT
Sean Robert McMahon, M.D. is a cardiovascular disease physician with a practice address in Hartford, Connecticut, and NPI 1295050169, issued on Apr 2, 2010. Check the license (Connecticut 056654, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Sean Robert McMahon
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- 056654 CT
042.0012683 VT
Self-reported in NPPES; status is on the state search - Practice location
- 80 Seymour Street, Hartford, CT 06102
- Phone
- (860) 972-9047
- Enumerated
- Apr 2, 2010
- Record last updated
- Oct 12, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20171110001001); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 503 in Connecticut → Look up another NPI →
Also registered at 80 Seymour Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Ross Albert, MDHospice and Palliative Medicine (Family Medicine) Physician1124291448
Verify Sean Robert McMahon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 056654Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 86.4 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: $2,842.22
58 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. The 16,686 providers of this specialty with any payment received $3,819.56 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.
2 hospitals and group practices
- Hartford HospitalHartford, CT · Acute Care Hospitals4 of 5 stars
- Hartford Healthcare Medical Group Specialists PLLCFarmington, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Sean Robert McMahon among 503 cardiovascular disease physician records in Connecticut
Sean Robert McMahon, M.D. is one of 503 cardiovascular disease physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 72% of them.
- NPI issued2010 · 72% of these records are older, 26% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2010 · median 2000 among the 348 with a school on file
- Record last updated2017 · 71% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in Connecticut
There are 503 cardiovascular disease physician records in Connecticut.
All 503 in Connecticut → Every provider in Hartford → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Konstadina Darsaklis, MDHartford, CT 061021881037208
- Antonio Fernandez, MDHartford, CT 061021417187709
- Aidan Flynn, MDHartford, CT 061021316252919
- Fawad Kazi, M.D.Hartford, CT 061021679767115
- Vincent Lipari, DOHartford, CT 061021679936603
- Vidya Nadig, MDHartford, CT 061021588817738
- Ronald Pariser, M.D.Hartford, CT 061021710974746
- Bryan Perez Martinez, MDHartford, CT 061021386101962
Common questions
What is Sean Robert McMahon, M.D.'s NPI number?
Sean Robert McMahon, M.D.'s National Provider Identifier (NPI) is 1295050169, issued on Apr 2, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Sean Robert McMahon, M.D. located?
The NPPES record lists a practice address at 80 Seymour Street, Hartford, CT, 06102. Phone: (860) 972-9047. Providers update this record themselves, so call before visiting.
How can I verify Sean Robert McMahon, M.D.'s license?
NPPES lists Connecticut license number 056654, 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.
What is Sean Robert McMahon, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.4 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.