Dr. Casey L. O'Connell, MD

  • Los Angeles, CA
  • Hematologist and oncologist
NPI1104039197PAC ID0749381374
Medicare services, 2024
633
Medicare patients, 2024
316
Part D claims, 2024
219
Publications
58
Clinical trials
14
Practice address
1441 Eastlake Ave, Los Angeles, CA
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

USC Norris Cancer Hospital

Los Angeles, California

See all 6 affiliations

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Dr. Casey L. O'Connell is a hematologist and oncologist in Los Angeles, California

Dr. O'Connell practices at USC Norris Cancer Hospital in Los Angeles, California.

Dr. O'Connell's NPI, 1104039197, was assigned on May 7, 2007. Dr. O'Connell graduated from George Washington University School of Medicine and Health Sciences in 2001. Dr. O'Connell holds California license A80627.

NPI and contact details
Medicare PAC ID
0749381374
NPI enumeration date
May 7, 2007
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Professional email
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Personal email
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Mobile number
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Sex
Female
Estimated age
51
Medical school graduation
2001

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

Dr. Casey L. O'Connell practices at USC Norris Cancer Hospital in Los Angeles, California

Dr. O'Connell's primary practice is USC Norris Cancer Hospital, at 1441 Eastlake Ave, Los Angeles, CA.

  • USC Norris Cancer Hospital
    1441 Eastlake Ave, Los Angeles, CA

Source: Dmand AI Affiliation Data

Dr. Casey L. O'Connell is affiliated with 5 sites of care and 1 medical group

Dr. O'Connell's primary practice is USC Norris Cancer Hospital in Los Angeles, California. Dr. O'Connell is also affiliated with Los Angeles General Medical Center. The medical group on file is USC Care Medical Group. Dmand AI also links Dr. O'Connell to 3 more hospitals, each named with a free account.

See all 6 affiliations for Dr. O'Connell

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

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

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Connell practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
USC Norris Cancer HospitalAvailable with a free account
+4 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Casey L. O'Connell is one of 1,502 hematologists and oncologists in California

Hematology and oncology is Dr. O'Connell's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. O'Connell is board certified in hematology by the American Board of Internal Medicine. Dr. O'Connell is licensed in California.

Specialties and state licenses

  • Hematology and oncology, CaliforniaPrimaryLicense A80627 · 2002 to 2026 · taxonomy 207RH0003X

Clinical focus

Dmand AI lists chronic anemia, chronic embolism thrombosis, chronic leukemia, deep vein thrombosis (DVT), immune deficiency disease, lung cancer, lymphoma and neutropenia among the conditions Dr. O'Connell treats.

Hematologists and oncologists near Dr. O'Connell

Counts of hematologists and oncologists 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. Casey L. O'Connell billed Medicare for 633 services in 2024

CMS data shows 633 Medicare services from Dr. O'Connell across 9 procedure codes in 2024, for 316 Medicare patients. Medicare paid $42,481 for them.

Medicare services, 2024633
Medicare patients316
Paid by Medicare$42,481
Procedure codes9

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

  • 2023
  • 2024
Office and hospital visits
2023: 5512024: 63315%

Where Dr. O'Connell's Medicare services took place, 2024

  • In an office295%
  • In a facility60495%

Dr. O'Connell compared with the California median for hematologists and oncologists, 2024

  • Dr. O'Connell
  • California median
Medicare services
633vs 93232% below
Medicare patients
316vs 22540% above
Part D claims
74vs 39481% below

Medians across 1,367 hematologists and oncologists in California 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. Casey L. O'Connell treated 316 Medicare patients in 2024, average age 73

CMS counts 316 Medicare patients who saw Dr. O'Connell in 2024. The largest group is 65 to 74, with 125 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 27% are also on Medicaid. Their average risk score is 2.85, 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 64, with 47% women.

Medicare patients, 2024316
Average age73
Average risk score2.85
Also on Medicaid27%

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

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

  • Women14446%
  • Men17254%

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

  1. High blood pressure75%
  2. High cholesterol74%
  3. Arthritis53%
  4. Ischemic heart disease45%
  5. Chronic kidney disease41%
  6. Diabetes38%
  7. Atrial fibrillation28%
  8. Heart failure26%

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 64

Patient panel by sex, all payers

  • Women47%
  • Men52%

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

Dr. Casey L. O'Connell wrote 219 Medicare Part D claims in 2024

In 2024, Dr. O'Connell wrote 219 Medicare Part D claims for 60 patients. 58% of them were for generic drugs. CMS names the drug for 74 of them, across 4 drugs with 11 or more claims each, at $164,155 in total drug cost. In 2023, CMS named 96 claims across 6 drugs.

Part D claims, 2024219
Drugs named by CMS4
Total drug cost$164,155
Part D patients60

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

  • Generic126 claims58%
  • Brand-name93 claims42%

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

  • Antibiotics10%22 of 219 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: 962024: 7423%

Drugs named by CMS: 4 in 2024, 6 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. Casey L. O'Connell 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. Casey L. O'Connell has 58 publications on record

Dmand AI links 58 papers to Dr. O'Connell, published from 2011 to 2025. 2016 was the busiest year, with 7. The most frequent topics are Venous Thromboembolism, Leukemia, Myeloid, Acute and Anticoagulants. Dr. O'Connell has published most often in Blood. Dr. O'Connell's most frequent co-authors are Gail J. Roboz, MD, Howard A. Liebman, MD and Ruben Anthony Mesa, MD.

Papers58
Years published2011 to 2025

Dr. O'Connell's papers by year, 2015 to 2025

Topics Dr. O'Connell writes about most

  • Venous Thromboembolism
  • Leukemia, Myeloid, Acute
  • Anticoagulants
  • Pulmonary Embolism
  • Antineoplastic Combined Chemotherapy Protocols
  • Azacitidine
  • Myelodysplastic Syndromes
  • Decitabine

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

Recent publications by Dr. O'Connell

See all 58 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 hematologists and oncologists.

How network discovery works

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

Dr. Casey L. O'Connell has worked on 14 clinical trials

Dmand AI links Dr. O'Connell to 14 clinical trials, 5 of them phase 3 studies. 6 are still active or recruiting. Conditions studied include Leukemia, Myelomonocytic, Chronic, Myelodysplastic-Myeloproliferative Diseases and Leukemia, Myeloid, Acute. Astex Pharmaceuticals, Inc. sponsors the most, 2. Open Payments lists research payments to Dr. O'Connell that name 1 trial.

Clinical trials with Dr. O'Connell by phase

  1. 1Phase 1: 1 trial
  2. 2Phase 1/2: 2 trials
  3. 3Phase 2: 3 trials
  4. 5Phase 3: 5 trials
  5. NonePhase 4: no trials

Conditions in Dr. O'Connell's trials

  • Leukemia, Myelomonocytic, Chronic
  • Myelodysplastic-Myeloproliferative Diseases
  • Leukemia, Myeloid, Acute
  • Thrombocythemia, Essential
  • Leukemia, Myeloid

Investigators on the most trials with Dr. O'Connell

Recent clinical trials with Dr. O'Connell

See all 14 clinical trials and co-investigators

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Casey L. O'Connell received $35,670 in industry payments from 2016 to 2025

CMS Open Payments shows 69 general payments to Dr. O'Connell from 17 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 82% of the total. Otsuka Pharmaceutical Development & Commercialization, Inc. paid the most, $6,089. It also lists 1 research payment totaling $50,430 in 2019, naming 1 clinical trial.

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

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

$35.7Kin total
  • Consulting fees$29,19982%
  • Travel and lodging$4,50013%
  • Food and beverage$1,9485%
  • Education$240%

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. Casey L. O'Connell has 1 award and honors on record

Dmand AI lists 1 award for Dr. O'Connell.

Awards and honors for Dr. O'Connell

  1. Undated
    • Super Doc

Source: Dmand AI Professional Profile Data

Dr. Casey L. O'Connell graduated from George Washington University School of Medicine and Health Sciences

Dr. O'Connell graduated from George Washington University School of Medicine and Health Sciences in 2001.

  1. Medical schoolGeorge Washington University School of Medicine and Health Sciences
  2. Board certified in hematologyAmerican Board of Internal Medicine
  3. Board certified in internal medicineAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Casey L. O'Connell accepts plans from 15 insurance carriers

Dr. O'Connell is in network with 15 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.

  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • Elevance
  • HCSC
  • Aetna
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • Alliant Health Plans
  • +7 more carriersWith a free account

Plan types Dr. O'Connell accepts, by number of carriers

  1. PPO8
  2. Medicare7
  3. HMO6
  4. EPO3
  5. POS3
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Casey L. 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
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Casey L. 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. Casey L. O'Connell's NPI number?

Dr. Casey L. O'Connell's NPI number is 1104039197. It was assigned on May 7, 2007, and it is active in the NPI Registry.

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

Dr. Casey L. O'Connell is a hematologist and oncologist in Los Angeles, California. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).

Where does Dr. Casey L. O'Connell practice?

Dr. O'Connell practices at 1441 Eastlake Ave, Los Angeles, CA. Dr. O'Connell's primary practice is USC Norris Cancer Hospital in Los Angeles, California. Dmand AI also links Dr. O'Connell to 3 hospitals.

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

Dr. O'Connell holds California license A80627.

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

Dr. O'Connell is affiliated with Los Angeles General Medical Center. Dmand AI links Dr. O'Connell to 3 more hospitals.

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

Dr. O'Connell is linked to USC Care Medical Group.

Does Dr. Casey L. O'Connell accept Medicare?

Yes. CMS data shows Dr. O'Connell billed Medicare for 633 services in 2024, and Dr. O'Connell accepts Medicare assignment.

Does Dr. Casey L. O'Connell offer telehealth?

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

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

CMS counts 316 Medicare patients who saw Dr. O'Connell in 2024, with an average age of 73.

Is Dr. Casey L. O'Connell board certified?

Yes. Dr. O'Connell is board certified in hematology by the American Board of Internal Medicine.

Show 8 more questionsShow fewer questions

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

In 2024, Dr. O'Connell's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and hospital inpatient care (99231).

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

Dr. O'Connell graduated from George Washington University School of Medicine and Health Sciences in 2001.

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

In 2024 Medicare Part D data, Dr. O'Connell's most prescribed drugs by claims were Eliquis, Hydroxyurea and Hizentra.

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

CMS Open Payments shows $35,670 in general payments to Dr. O'Connell from 17 companies from 2016 to 2025. The largest total came from Otsuka Pharmaceutical Development & Commercialization, Inc.

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

Dr. O'Connell graduated from medical school in 2001, 25 years ago.

Does Dr. Casey L. O'Connell do research?

Dmand AI links 58 publications to Dr. O'Connell, published from 2011 to 2025. Dr. O'Connell has worked on 14 clinical trials.

Who does Dr. Casey L. O'Connell publish with?

Dr. O'Connell's most frequent co-authors are Gail J. Roboz, MD (12 shared papers), Howard A. Liebman, MD (9 shared papers) and Ruben Anthony Mesa, MD (7 shared papers).

What insurance does Dr. Casey L. O'Connell accept?

Dr. O'Connell is in network with 15 carriers, including Blue Cross Blue Shield of Michigan, United Healthcare and Elevance. PPO plans come from the most carriers, 8. Check the plan with the practice before a visit.

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