Dr. Thomas L. O'Connell Jr., MD

  • Durham, NC
  • Endocrinologist
NPI1710047311PAC ID1355368572
Medicare services, 2024
7,450
Medicare patients, 2024
517
Part D claims, 2024
8,135
Hospital affiliations
1
Industry payments
$1.3M
Practice address
2351 Erwin Rd, Durham, NC 27705
Practice phone
Call (919) 620-4855
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Duke Health Integrated Practice, Inc.

Durham, North Carolina

See all 6 affiliations

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Dr. Thomas L. O'Connell Jr. is an endocrinologist in Durham, North Carolina

Dr. O'Connell practices at Duke Health Integrated Practice, Inc. in Durham, North Carolina.

Dr. O'Connell's NPI, 1710047311, was assigned on December 12, 2006. Dr. O'Connell graduated from University of North Carolina at Chapel Hill School of Medicine in 1995. Dr. O'Connell holds North Carolina license 9800991.

NPI and contact details
Medicare PAC ID
1355368572
NPI enumeration date
December 12, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(919) 620-4855
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
57
Medical school graduation
1995

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

Dr. Thomas L. O'Connell Jr. practices at Duke Health Integrated Practice, Inc. in Durham, North Carolina

Dr. O'Connell's primary practice is Duke Health Integrated Practice, Inc., at 2351 Erwin Rd, Durham, NC 27705 in Durham County. The practice phone is (919) 620-4855.

  • Duke Health Integrated Practice, Inc.
    2351 Erwin Rd, Durham, NC 27705 · Durham CountyPhone(919) 620-4855

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Thomas L. O'Connell Jr. is affiliated with 4 sites of care and 2 medical groups

Dr. O'Connell's primary practice is Duke Health Integrated Practice, Inc. in Durham, North Carolina. Dr. O'Connell is also affiliated with Cone Health Alamance Regional Medical Center. The medical group on file is Duke Health Integrated Practice. Dmand AI also links Dr. O'Connell to 2 more group practices and clinics and 1 medical group, each named with a free account.

See all 6 affiliations for Dr. O'Connell

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

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

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Connell practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Duke Health Integrated Practice, Inc.Available with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Thomas L. O'Connell Jr. is one of 254 endocrinologists in North Carolina

Endocrinology, diabetes and metabolism is Dr. O'Connell's primary specialty in the NPI Registry, under taxonomy code 207RE0101X. Dr. O'Connell is licensed in North Carolina.

Specialties and state licenses

  • Endocrinology, diabetes and metabolism, North CarolinaPrimaryLicense 9800991 · taxonomy 207RE0101X

Endocrinologists near Dr. O'Connell

Counts of endocrinologists 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 L. O'Connell Jr. billed Medicare for 7,450 services in 2024

CMS data shows 7,450 Medicare services from Dr. O'Connell across 22 procedure codes in 2024, for 517 Medicare patients. Medicare paid $164,611 for them. Every service was in an office.

Medicare services, 20247,450
Medicare patients517
Paid by Medicare$164,611
Procedure codes22

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

  • 2023
  • 2024
Drugs given in the office
2023: 4,0602024: 4,61514%
Lab and pathology
2023: 8382024: 8866%
Office and hospital visits
2023: 6222024: 6484%
Other services
2023: 02024: 454
Surgery
2023: 3152024: 3315%
Tests and treatments
2023: 2482024: 29419%
Imaging
2023: 2252024: 2221%

Dr. O'Connell compared with the North Carolina median for endocrinologists, 2024

  • Dr. O'Connell
  • North Carolina median
Medicare services
7,450vs 73410.1 times
Medicare patients
517vs 2502.1 times
Part D claims
7,692vs 1,7044.5 times

Medians across 250 endocrinologists in North Carolina 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 L. O'Connell Jr. treated 517 Medicare patients in 2024, average age 74

CMS counts 517 Medicare patients who saw Dr. O'Connell in 2024. The largest group is 65 to 74, with 236 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 1.36, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. O'Connell's median patient age at 72, with 69% women.

Medicare patients, 2024517
Average age74
Average risk score1.36
Also on Medicaid7%

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

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

  • Women36571%
  • Men15229%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes53%
  4. Arthritis43%
  5. Chronic kidney disease35%
  6. Osteoporosis31%
  7. Mood disorders28%
  8. Ischemic heart disease27%

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 72

Patient panel by sex, all payers

  • Women69%
  • Men30%

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

Dr. Thomas L. O'Connell Jr. wrote 8,135 Medicare Part D claims in 2024

In 2024, Dr. O'Connell wrote 8,135 Medicare Part D claims for 764 patients. 41% of them were for generic drugs. CMS names the drug for 7,692 of them, across 87 drugs with 11 or more claims each, at $3,391,729 in total drug cost. In 2023, CMS named 7,204 claims across 87 drugs.

Part D claims, 20248,135
Drugs named by CMS87
Total drug cost$3.4M
Part D patients764

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

  • Generic3,318 claims41%
  • Brand-name4,332 claims53%
  • Other485 claims6%

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.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 7,2042024: 7,6927%

Drugs named by CMS: 87 in 2024, 87 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

Dr. Thomas L. O'Connell Jr. offers telehealth to Medicare patients

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

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Thomas L. O'Connell Jr. received $1,289,037 in industry payments from 2016 to 2025

CMS Open Payments shows 2,447 general payments to Dr. O'Connell from 27 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 85% of the total. Eli Lilly and Company paid the most, $510,062.

General payments to Dr. O'Connell by program year, 2016 to 2025

General payments to Dr. O'Connell by kind, 2016 to 2025

$1.3Min total
  • Speaker and faculty fees$1,099,67185%
  • Travel and lodging$91,2077%
  • Food and beverage$35,4843%
  • Compensation for serving as faculty or as a speaker for a medical education program$32,1202%
  • Other$30,3322%

Companies that paid Dr. O'Connell the most, 2016 to 2025

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

Dr. Thomas L. O'Connell Jr. graduated from University of North Carolina at Chapel Hill School of Medicine

Dr. O'Connell graduated from University of North Carolina at Chapel Hill School of Medicine in 1995.

  1. Medical schoolUniversity of North Carolina at Chapel Hill School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Thomas L. O'Connell 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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
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 L. O'Connell 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. Thomas L. O'Connell Jr.'s NPI number?

Dr. Thomas L. O'Connell Jr.'s NPI number is 1710047311. It was assigned on December 12, 2006, and it is active in the NPI Registry.

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

Dr. Thomas L. O'Connell Jr. is an endocrinologist in Durham, North Carolina. The primary specialty in the NPI Registry is Endocrinology, Diabetes & Metabolism Physician (taxonomy code 207RE0101X).

Where does Dr. Thomas L. O'Connell Jr. practice?

Dr. O'Connell practices at 2351 Erwin Rd, Durham, NC 27705. Dr. O'Connell's primary practice is Duke Health Integrated Practice, Inc. in Durham, North Carolina. Dmand AI also links Dr. O'Connell to 2 group practices and clinics and 1 medical group.

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

The practice phone on file for Dr. O'Connell is (919) 620-4855.

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

Dr. O'Connell holds North Carolina license 9800991.

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

Dr. O'Connell is affiliated with Cone Health Alamance Regional Medical Center.

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

Dr. O'Connell is linked to Duke Health Integrated Practice. Dmand AI links Dr. O'Connell to 1 more medical group.

Does Dr. Thomas L. O'Connell Jr. accept Medicare?

Yes. CMS data shows Dr. O'Connell billed Medicare for 7,450 services in 2024, and Dr. O'Connell accepts Medicare assignment.

Does Dr. Thomas L. O'Connell Jr. offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. O'Connell as offering telehealth services.

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

CMS counts 517 Medicare patients who saw Dr. O'Connell in 2024, with an average age of 74.

Show 5 more questionsShow fewer questions

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

In 2024, Dr. O'Connell's most billed Medicare services were injected or infused drug (J0897), office visit, established patient (99214) and medicare service (G2211).

Where did Dr. Thomas L. O'Connell Jr. go to medical school?

Dr. O'Connell graduated from University of North Carolina at Chapel Hill School of Medicine in 1995.

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

In 2024 Medicare Part D data, Dr. O'Connell's most prescribed drugs by claims were Ozempic, Jardiance and Levothyroxine Sodium.

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

CMS Open Payments shows $1,289,037 in general payments to Dr. O'Connell from 27 companies from 2016 to 2025. The largest total came from Eli Lilly and Company.

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

Dr. O'Connell graduated from medical school in 1995, 31 years ago.

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