Dr. Thomas William O'Connell, MD

  • Hartford, CT
  • Emergency medicine physician
NPI1548622160PAC ID9436563475
Medicare services, 2024
260
Medicare patients, 2024
239
Part D claims, 2024
138
Publications
1
Hospital affiliations
1
Practice address
114 Woodland Street & 500 Blue Hills Avenue, Hartford, CT 06105
Practice phone
Call (860) 714-5541
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Saint Francis Hospital

Hospital · Hartford, Connecticut

See all 5 affiliations

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Dr. Thomas William O'Connell is an emergency medicine physician in Hartford, Connecticut

Dr. O'Connell practices at Saint Francis Hospital in Hartford, Connecticut, part of Trinity Health.

Dr. O'Connell's NPI, 1548622160, was assigned on March 23, 2016. Dr. O'Connell holds New York license 304173.

NPI and contact details
Medicare PAC ID
9436563475
NPI enumeration date
March 23, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(860) 714-5541
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
36
Medical school graduation
2016

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

Dr. Thomas William O'Connell practices at Saint Francis Hospital in Hartford, Connecticut

Dr. O'Connell's primary practice is Saint Francis Hospital, at 114 Woodland Street & 500 Blue Hills Avenue, Hartford, CT 06105 in Hartford County. The practice phone is (860) 714-5541.

  • Saint Francis Hospital
    114 Woodland Street & 500 Blue Hills Avenue, Hartford, CT 06105 · Hartford CountyPhone(860) 714-5541

Source: Dmand AI Affiliation Data

Dr. Thomas William O'Connell is affiliated with 1 site of care and 4 medical groups

Dr. O'Connell's primary practice is Saint Francis Hospital in Hartford, Connecticut, part of Trinity Health. The medical group on file is Vituity. Dmand AI also links Dr. O'Connell to 3 more medical groups, each named with a free account.

See all 5 affiliations for Dr. O'Connell

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

Dmand AI tracks the EHR system at Dr. Thomas William O'Connell's practice

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

EHR by site
SiteEHR vendor and product
Saint Francis HospitalAvailable with a free account
+3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thomas William O'Connell is one of 683 emergency medicine physicians in Connecticut

Emergency medicine is Dr. O'Connell's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. O'Connell is licensed in New York.

Specialties and state licenses

  • Emergency medicine, New YorkPrimaryLicense 304173 · taxonomy 207P00000X

Emergency medicine physicians near Dr. O'Connell

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 William O'Connell billed Medicare for 260 services in 2024

CMS data shows 260 Medicare services from Dr. O'Connell across 5 procedure codes in 2024, for 239 Medicare patients. Medicare paid $30,052 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024260
Medicare patients239
Paid by Medicare$30,052
Procedure codes5

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

  • 2023
  • 2024
Office and hospital visits
2023: 2402024: 2494%
Tests and treatments
2023: 02024: 11

Dr. O'Connell compared with the Connecticut median for emergency medicine physicians, 2024

  • Dr. O'Connell
  • Connecticut median
Medicare services
260vs 2437% above
Medicare patients
239vs 250Close to median
Part D claims
60vs 4825% above

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

Dr. O'Connell'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. O'Connell

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

Dr. Thomas William O'Connell treated 239 Medicare patients in 2024, average age 76

CMS counts 239 Medicare patients who saw Dr. O'Connell in 2024. The largest group is 75 to 84, with 78 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 44% are also on Medicaid. Their average risk score is 2.51, 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. O'Connell's median patient age at 73, with 55% women.

Medicare patients, 2024239
Average age76
Average risk score2.51
Also on Medicaid44%

Dr. O'Connell's Medicare patients by age, 2024

Dr. O'Connell's Medicare patients by sex, 2024

  • Women13657%
  • Men10343%

Chronic conditions among Dr. O'Connell's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol74%
  3. Arthritis62%
  4. Mood disorders50%
  5. Anxiety49%
  6. Ischemic heart disease47%
  7. Heart failure46%
  8. Depression45%

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

Dr. O'Connell's patients across all payers

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

Patient panel by age, all payers

Median age 73

Patient panel by sex, all payers

  • Women55%
  • Men43%

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

Dr. Thomas William O'Connell wrote 138 Medicare Part D claims in 2024

In 2024, Dr. O'Connell wrote 138 Medicare Part D claims for 92 patients. 93% of them were for generic drugs. CMS names the drug for 60 of them, across 4 drugs with 11 or more claims each, at $357 in total drug cost. In 2023, CMS named 40 claims across 3 drugs.

Part D claims, 2024138
Drugs named by CMS4
Total drug cost$357
Part D patients92

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

  • Generic129 claims93%
  • Brand-name and other9 claims7%

Dr. O'Connell's most prescribed drugs by claims, 2024

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. O'Connell's Part D claims, 2024

  • Opioids10%14 of 138 claims
  • Antibiotics25%35 of 138 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, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 402024: 6050%

Drugs named by CMS: 4 in 2024, 3 in 2023.

See all prescribing by Dr. O'Connell

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

How Dr. Thomas William O'Connell takes part in Medicare

Dr. O'Connell accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Thomas William O'Connell has 1 publication on record

Dmand AI links 1 paper to Dr. O'Connell in 2020. Dr. O'Connell's most frequent co-authors are Jason R. Raggi, DO and Daniel Singer, MD.

Papers1

Dr. O'Connell's most frequent co-authors

Recent publications by Dr. O'Connell

See all 1 publications and co-authors

See who Dr. O'Connell researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. O'Connell works with, so you can find a warm path to the right emergency medicine physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Thomas William O'Connell received $20 in industry payments in 2024

CMS Open Payments shows 1 general payment to Dr. O'Connell from 1 drug or device company in 2024. Education make up the largest share, 100% of the total. CSL Behring paid the most, $20.

Companies that paid Dr. O'Connell the most, 2024 to 2024

Share is of all general payments to this clinician.

See all payments to Dr. O'Connell

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

Sources for Dr. Thomas William O'Connell'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)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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 William O'Connell

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 William O'Connell's NPI number?

Dr. Thomas William O'Connell's NPI number is 1548622160. It was assigned on March 23, 2016, and it is active in the NPI Registry.

What kind of doctor is Dr. Thomas William O'Connell?

Dr. Thomas William O'Connell is an emergency medicine physician in Hartford, Connecticut. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does Dr. Thomas William O'Connell practice?

Dr. O'Connell practices at 114 Woodland Street & 500 Blue Hills Avenue, Hartford, CT 06105. Dr. O'Connell's primary practice is Saint Francis Hospital in Hartford, Connecticut, part of Trinity Health. Dmand AI also links Dr. O'Connell to 3 medical groups.

What is Dr. Thomas William O'Connell's office phone number?

The practice phone on file for Dr. O'Connell is (860) 714-5541.

What is Dr. Thomas William O'Connell's medical license number?

Dr. O'Connell holds New York license 304173.

Which hospitals is Dr. Thomas William O'Connell affiliated with?

Dr. O'Connell practices at Saint Francis Hospital in Hartford, Connecticut.

What medical group is Dr. Thomas William O'Connell part of?

Dr. O'Connell is linked to Vituity. Dmand AI links Dr. O'Connell to 3 more medical groups.

Does Dr. Thomas William O'Connell accept Medicare?

Yes. CMS data shows Dr. O'Connell billed Medicare for 260 services in 2024, and Dr. O'Connell accepts Medicare assignment.

How many Medicare patients does Dr. Thomas William O'Connell see?

CMS counts 239 Medicare patients who saw Dr. O'Connell in 2024, with an average age of 76.

What services does Dr. Thomas William O'Connell bill to Medicare?

In 2024, Dr. O'Connell's most billed Medicare services were emergency department visit (99285), emergency department visit (99284) and critical care (99291).

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What drugs does Dr. Thomas William O'Connell prescribe most?

In 2024 Medicare Part D data, Dr. O'Connell's most prescribed drugs by claims were Ondansetron ODT, Methocarbamol and Prednisone.

Has Dr. Thomas William O'Connell received payments from drug or device companies?

CMS Open Payments shows $20 in general payments to Dr. O'Connell from 1 company from 2024 to 2024. The largest total came from CSL Behring.

How long has Dr. Thomas William O'Connell been practicing?

Dr. O'Connell graduated from medical school in 2016, 10 years ago.

Does Dr. Thomas William O'Connell do research?

Dmand AI links 1 publication to Dr. O'Connell.

Who does Dr. Thomas William O'Connell publish with?

Dr. O'Connell's most frequent co-authors are Jason R. Raggi, DO (1 shared paper) and Daniel Singer, MD (1 shared paper).

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