Dr. Thomas Joseph Regan, MD

  • Farmington, CT
  • Emergency medicine physician
NPI1053329565
Medicare services, 2024
167
Medicare patients, 2024
165
Part D claims, 2024
84
Hospital affiliations
1
Industry payments
$530
Practice address
263 Farmington Ave, Farmington, CT 06032
Practice phone
Call (860) 679-1145
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UConn John Dempsey Hospital

Hospital · Farmington, Connecticut

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Dr. Thomas Joseph Regan is an emergency medicine physician in Farmington, Connecticut

Dr. Regan practices at UConn John Dempsey Hospital in Farmington, Connecticut, part of State of Connecticut.

Dr. Regan's NPI, 1053329565, was assigned on August 3, 2006. Dr. Regan holds Connecticut license 035365.

NPI and contact details
NPI enumeration date
August 3, 2006
NPI status
Active
Practice phone
(860) 679-1145
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; and Dmand AI Affiliation Data

Dr. Thomas Joseph Regan practices at UConn John Dempsey Hospital in Farmington, Connecticut

Dr. Regan's primary practice is UConn John Dempsey Hospital, at 263 Farmington Ave, Farmington, CT 06032 in Hartford County. The practice phone is (860) 679-1145.

Source: Dmand AI Affiliation Data

Dr. Thomas Joseph Regan is affiliated with 2 sites of care and 1 medical group

Dr. Regan's primary practice is UConn John Dempsey Hospital in Farmington, Connecticut, part of State of Connecticut. The medical group on file is Connecticut Valley Hospital. Dmand AI also links Dr. Regan to 1 more group practice or clinic, named with a free account. Dr. Regan's employer is on file too: a hospital.

See all 3 affiliations for Dr. Regan

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Thomas Joseph Regan's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Regan practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UConn John Dempsey HospitalAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thomas Joseph Regan is one of 683 emergency medicine physicians in Connecticut

Emergency medicine is Dr. Regan's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Regan is licensed in Connecticut.

Specialties and state licenses

  • Emergency medicine, ConnecticutPrimaryLicense 035365 · taxonomy 207P00000X

Emergency medicine physicians near Dr. Regan

Counts of emergency medicine physicians 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. Thomas Joseph Regan billed Medicare for 167 services in 2024

CMS data shows 167 Medicare services from Dr. Regan across 3 procedure codes in 2024, for 165 Medicare patients. Medicare paid $16,310 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024167
Medicare patients165
Paid by Medicare$16,310
Procedure codes3

Dr. Regan's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1602024: 1674%

Dr. Regan compared with the Connecticut median for emergency medicine physicians, 2024

  • Dr. Regan
  • Connecticut median
Medicare services
167vs 24331% below
Medicare patients
165vs 25034% below
Part D claims
17vs 4865% below

Medians across 695 emergency medicine physicians in Connecticut with Dmand AI profiles that report each measure.

Dr. Regan's most billed Medicare procedure codes, 2024

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

See all procedures by Dr. Regan

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

Dr. Thomas Joseph Regan treated 165 Medicare patients in 2024, average age 74

CMS counts 165 Medicare patients who saw Dr. Regan in 2024. The largest group is 75 to 84, with 48 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 40% are also on Medicaid. Their average risk score is 2.06, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Regan's median patient age at 79, with 83% women.

Medicare patients, 2024165
Average age74
Average risk score2.06
Also on Medicaid40%

Dr. Regan's Medicare patients by age, 2024

Dr. Regan's Medicare patients by sex, 2024

  • Women9055%
  • Men7545%

Chronic conditions among Dr. Regan's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol72%
  3. Arthritis53%
  4. Mood disorders47%
  5. Anxiety45%
  6. Depression39%
  7. Diabetes35%
  8. Atrial fibrillation33%

Share of Medicare patients with each condition. A patient can have several.

Dr. Regan's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 79

Patient panel by sex, all payers

  • Women83%
  • Men17%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Thomas Joseph Regan wrote 84 Medicare Part D claims in 2024

In 2024, Dr. Regan wrote 84 Medicare Part D claims for 69 patients. 90% of them were for generic drugs. CMS names the drug for 17 of them, across 1 drug with 11 or more claims each, at $140 in total drug cost. In 2022, CMS named 14 claims across 1 drug.

Part D claims, 202484
Drugs named by CMS1
Total drug cost$140
Part D patients69

Dr. Regan's Part D claims by kind of drug, 2024

  • Generic76 claims90%
  • Brand-name and other8 claims10%

Dr. Regan's most prescribed drugs by claims, 2023

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

Drug classes CMS tracks in Dr. Regan's Part D claims, 2024

  • Antibiotics36%30 of 84 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 142023: 1721%

Drugs named by CMS: 1 in 2023, 1 in 2022.

See all prescribing by Dr. Regan

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

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Dr. Thomas Joseph Regan received $530 in industry payments from 2023 to 2024

CMS Open Payments shows 12 general payments to Dr. Regan from 2 drug and device companies from 2023 to 2024. Food and beverage make up the largest share, 100% of the total. Abbott Laboratories paid the most, $385.

General payments to Dr. Regan by program year, 2023 to 2024

Companies that paid Dr. Regan the most, 2023 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. Regan

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

Sources for Dr. Thomas Joseph Regan'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 Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand 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
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (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. Thomas Joseph Regan

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. Thomas Joseph Regan's NPI number?

Dr. Thomas Joseph Regan's NPI number is 1053329565. It was assigned on August 3, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Thomas Joseph Regan?

Dr. Thomas Joseph Regan is an emergency medicine physician in Farmington, Connecticut. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Thomas Joseph Regan practice?

Dr. Regan practices at 263 Farmington Ave, Farmington, CT 06032. Dr. Regan's primary practice is UConn John Dempsey Hospital in Farmington, Connecticut, part of State of Connecticut. Dmand AI also links Dr. Regan to 1 group practice or clinic.

What is Dr. Thomas Joseph Regan's office phone number?

The practice phone on file for Dr. Regan is (860) 679-1145.

What is Dr. Thomas Joseph Regan's medical license number?

Dr. Regan holds Connecticut license 035365.

Which hospitals is Dr. Thomas Joseph Regan affiliated with?

Dr. Regan practices at UConn John Dempsey Hospital in Farmington, Connecticut.

What medical group is Dr. Thomas Joseph Regan part of?

Dr. Regan is linked to Connecticut Valley Hospital.

Does Dr. Thomas Joseph Regan accept Medicare?

Yes. CMS data shows Dr. Regan billed Medicare for 167 services in 2024.

How many Medicare patients does Dr. Thomas Joseph Regan see?

CMS counts 165 Medicare patients who saw Dr. Regan in 2024, with an average age of 74.

What services does Dr. Thomas Joseph Regan bill to Medicare?

In 2024, Dr. Regan's most billed Medicare services were emergency department visit (99284), emergency department visit (99285) and emergency department visit (99283).

Show 3 more questionsShow fewer questions

What drugs does Dr. Thomas Joseph Regan prescribe most?

In 2023 Medicare Part D data, Dr. Regan's most prescribed drugs by claims were Ondansetron HCl.

Has Dr. Thomas Joseph Regan received payments from drug or device companies?

CMS Open Payments shows $530 in general payments to Dr. Regan from 2 companies from 2023 to 2024. The largest total came from Abbott Laboratories.

How long has Dr. Thomas Joseph Regan been practicing?

Dr. Regan's NPI was assigned in 2006.

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