Dr. Lloyd Everett Seyler Jr., MD

  • Hartford, CT
  • Internist
NPI1477686327
Medicare services, 2020
36
Part D claims, 2018
11
MIPS score, 2024
93
Hospital affiliations
1
Industry payments
$175
Practice address
80 Seymour Street, Hartford, CT 06102
Practice phone
Call (860) 545-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Hartford Hospital

Hospital · Hartford, Connecticut

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Dr. Lloyd Everett Seyler Jr. is an internist in Hartford, Connecticut

Dr. Seyler practices at Hartford Hospital in Hartford, Connecticut, part of Hartford HealthCare.

Dr. Seyler's NPI, 1477686327, was assigned on March 13, 2007. Dr. Seyler holds Connecticut license 014935.

NPI and contact details
NPI enumeration date
March 13, 2007
NPI status
Active
Practice phone
(860) 545-5000
Professional email
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Personal email
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Mobile number
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Sex
Male

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Lloyd Everett Seyler Jr. practices at Hartford Hospital in Hartford, Connecticut

Dr. Seyler's primary practice is Hartford Hospital, at 80 Seymour Street, Hartford, CT 06102 in Hartford County. The practice phone is (860) 545-5000.

  • Hartford Hospital
    80 Seymour Street, Hartford, CT 06102 · Hartford CountyPhone(860) 545-5000

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Lloyd Everett Seyler Jr. is affiliated with 1 site of care and 1 medical group

Dr. Seyler's primary practice is Hartford Hospital in Hartford, Connecticut, part of Hartford HealthCare. The medical group on file is Hartford Hospital.

Sources: Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Lloyd Everett Seyler Jr.'s practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Seyler practices. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Hartford HospitalAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Lloyd Everett Seyler Jr. is one of 2,189 internists in Connecticut

Internal medicine is Dr. Seyler's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Seyler is licensed in Connecticut.

Specialties and state licenses

  • Internal medicine, ConnecticutPrimaryLicense 014935 · taxonomy 207R00000X

Internists near Dr. Seyler

Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Lloyd Everett Seyler Jr. billed Medicare for 36 services in 2020

CMS data shows 36 Medicare services from Dr. Seyler across 1 procedure code in 2020, all of them office visits. Medicare paid $1,033 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 202036
Paid by Medicare$1,033
Procedure codes1

Dr. Seyler's Medicare services by type, 2019 to 2020

  • 2019
  • 2020
Office and hospital visits
2019: 1562020: 3677%
Other services
2019: 642020: 0100%

Dr. Seyler compared with the Connecticut median for internists, 2020

  • Dr. Seyler
  • Connecticut median
Medicare services
36vs 39091% below
Part D claims
11vs 34397% below

Medians across 2,185 internists in Connecticut with Dmand AI profiles that report each measure.

Dr. Seyler's most billed Medicare procedure codes, 2020

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Lloyd Everett Seyler Jr. wrote 11 Medicare Part D claims in 2018

In 2018, Dr. Seyler wrote 11 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $84 in total drug cost. In 2017, CMS named 12 claims across 1 drug.

Part D claims, 201811
Drugs named by CMS1
Total drug cost$84

Dr. Seyler's most prescribed drugs by claims, 2018

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Part D claims for drugs CMS names, 2017 to 2018

  • 2017
  • 2018
Claims for drugs CMS names
2017: 122018: 118%

Drugs named by CMS: 1 in 2018, 1 in 2017.

See all prescribing by Dr. Seyler

Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026

Dr. Lloyd Everett Seyler Jr. scored 93 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Seyler for performance year 2024, reported as part of a group.

Dr. Seyler's MIPS scores, performance year 2024

  • 93of 100Final score
  • 75.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 71of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Lloyd Everett Seyler Jr. received $175 in industry payments from 2016 to 2018

CMS Open Payments shows 2 general payments to Dr. Seyler from 2 drug and device companies from 2016 to 2018. Consulting fees make up the largest share, 86% of the total. Merck Sharp & Dohme Corporation paid the most, $150.

General payments to Dr. Seyler by program year, 2016 to 2018

General payments to Dr. Seyler by kind, 2016 to 2018

$175in total
  • Consulting fees$15086%
  • Food and beverage$2514%

Companies that paid Dr. Seyler the most, 2016 to 2018

Share is of all general payments to this clinician.

See all payments to Dr. Seyler

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Lloyd Everett Seyler Jr.'s profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesClinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Lloyd Everett Seyler Jr.

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Lloyd Everett Seyler Jr.'s NPI number?

Dr. Lloyd Everett Seyler Jr.'s NPI number is 1477686327. It was assigned on March 13, 2007, and it is active in the NPI Registry.

What kind of doctor is Dr. Lloyd Everett Seyler Jr.?

Dr. Lloyd Everett Seyler Jr. is an internist in Hartford, Connecticut. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Lloyd Everett Seyler Jr. practice?

Dr. Seyler practices at 80 Seymour Street, Hartford, CT 06102. Dr. Seyler's primary practice is Hartford Hospital in Hartford, Connecticut, part of Hartford HealthCare.

What is Dr. Lloyd Everett Seyler Jr.'s office phone number?

The practice phone on file for Dr. Seyler is (860) 545-5000.

What is Dr. Lloyd Everett Seyler Jr.'s medical license number?

Dr. Seyler holds Connecticut license 014935.

Which hospitals is Dr. Lloyd Everett Seyler Jr. affiliated with?

Dr. Seyler practices at Hartford Hospital in Hartford, Connecticut.

What medical group is Dr. Lloyd Everett Seyler Jr. part of?

Dr. Seyler is linked to Hartford Hospital.

Does Dr. Lloyd Everett Seyler Jr. accept Medicare?

Yes. CMS data shows Dr. Seyler billed Medicare for 36 services in 2020.

What is Dr. Lloyd Everett Seyler Jr.'s MIPS score?

Dr. Seyler's MIPS final score for performance year 2024 is 93 out of 100, reported as part of a group.

What services does Dr. Lloyd Everett Seyler Jr. bill to Medicare?

In 2020, Dr. Seyler's most billed Medicare services were office visit, established patient (99213).

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What drugs does Dr. Lloyd Everett Seyler Jr. prescribe most?

In 2018 Medicare Part D data, Dr. Seyler's most prescribed drugs by claims were Atorvastatin Calcium.

Has Dr. Lloyd Everett Seyler Jr. received payments from drug or device companies?

CMS Open Payments shows $175 in general payments to Dr. Seyler from 2 companies from 2016 to 2018. The largest total came from Merck Sharp & Dohme Corporation.

How long has Dr. Lloyd Everett Seyler Jr. been practicing?

Dr. Seyler's NPI was assigned in 2007.

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