Lloyd Everett Seyler, MD
Internal Medicine Physician · Hartford, CT
Lloyd Everett Seyler, MD is an internal medicine physician with a practice address in Hartford, Connecticut, and NPI 1477686327, issued on Mar 13, 2007. Check the license (Connecticut 014935, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Lloyd Everett Seyler
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 014935 CT
Self-reported in NPPES; status is on the state search - Practice location
- 80 Seymour Street, Hartford, CT 06102
- Phone
- (860) 545-0500
- Enumerated
- Mar 13, 2007
- Record last updated
- Aug 30, 2018 (not updated in 8 years: call before relying on the address or phone)
- Medicaid ID
- 001149350 CT
- Entity
- Type 1 · individual
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Verify Lloyd Everett Seyler in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 014935Check 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).
Lloyd Everett Seyler among 2,623 internal medicine physician records in Connecticut
Lloyd Everett Seyler, MD is one of 2,623 internal medicine 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 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 44% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2018 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
169 internal medicine physician records list a practice address in Hartford
They are 169 of the 6,317 NPPES records with a practice address in Hartford, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Hartford → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mark Bell, M.D.Hartford, CT 061021942267265
- Robert Gionfriddo, D.OHartford, CT 061021831397942
- Ajay Kumar, MDHartford, CT 061021710942602
- Michael Lindberg, M.D.Hartford, CT 061021851494868
- Mitchell McClure, M.D.Hartford, CT 061021245442284
- Jacqueline Rheiner, D.O.Hartford, CT 061021821296153
- Jeffrey Robbins, MDHartford, CT 061021144227125
- Jamie Roche, M.D.Hartford, CT 061021013010347
Common questions
What is Lloyd Everett Seyler, MD's NPI number?
Lloyd Everett Seyler, MD's National Provider Identifier (NPI) is 1477686327, issued on Mar 13, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Lloyd Everett Seyler, MD located?
The NPPES record lists a practice address at 80 Seymour Street, Hartford, CT, 06102. Phone: (860) 545-0500. Providers update this record themselves, so call before visiting.
How can I verify Lloyd Everett Seyler, MD's license?
NPPES lists Connecticut license number 014935, 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 Lloyd Everett Seyler, MD'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.