Dr. Thomas Sean McBreen, MD
- Medicare services, 2024
- 1,740
- Medicare patients, 2024
- 286
- Part D claims, 2024
- 6,025
- MIPS score, 2024
- 75
- Hospital affiliations
- 1
- Practice address
- 147 North Brent Street, Ventura, CA 93003
- Practice phone
- Call (805) 652-5011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. McBreen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Thomas Sean McBreen is a family medicine physician in Ventura, California
Dr. McBreen practices at Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare.
Dr. McBreen's NPI, 1275605578, was assigned on November 14, 2006. Dr. McBreen graduated from Keck School of Medicine of USC in 1979. Dr. McBreen holds California license G42708.
- NPI
- 1275605578NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6800074972
- NPI enumeration date
- November 14, 2006
- NPI status
- Active
- Practice phone
- (805) 652-5011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Thomas Sean McBreen practices at Community Memorial Hospital - Ventura in Ventura, California
Dr. McBreen's primary practice is Community Memorial Hospital - Ventura, at 147 North Brent Street, Ventura, CA 93003 in Ventura County. The practice phone is (805) 652-5011.
- Community Memorial Hospital - Ventura147 North Brent Street, Ventura, CA 93003 · Ventura CountyPhone(805) 652-5011
Source: Dmand AI Affiliation Data
Dr. Thomas Sean McBreen is affiliated with 5 sites of care and 1 medical group
Dr. McBreen's primary practice is Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare. The medical group on file is Community Memorial Healthcare. Dmand AI also links Dr. McBreen to 3 more home health agencies and 1 group practice or clinic, each named with a free account. Dr. McBreen's employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Thomas Sean McBreen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. McBreen practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Community Memorial Hospital - Ventura | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Community Memorial Healthcare and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Thomas Sean McBreen is one of 15,680 family medicine physicians in California
Family medicine is Dr. McBreen's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. McBreen is board certified in family medicine by the National Board of Physicians and Surgeons. Dr. McBreen is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute gastroduodenitis, acute kidney failure, acute mini-stroke (TIA), acute sinusitis, acute skin infection, ADHD and anxiety among the conditions Dr. McBreen treats.
Family medicine physicians near Dr. McBreen
Counts of family 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 Sean McBreen billed Medicare for 1,740 services in 2024
CMS data shows 1,740 Medicare services from Dr. McBreen across 9 procedure codes in 2024, for 286 Medicare patients. Medicare paid $104,162 for them. Every service was in an office.
Dr. McBreen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,3062024: 1,3866%
- Drugs given in the office
- 2023: 3132024: 14853%
- Tests and treatments
- 2023: 1312024: 10222%
- Other services
- 2023: 982024: 7721%
- Surgery
- 2023: 962024: 2772%
Dr. McBreen compared with the California median for family medicine physicians, 2024
- Dr. McBreen
- California median
- Medicare services
- 1,740vs 2467.1 times
- Medicare patients
- 286vs 1182.4 times
- Part D claims
- 5,340vs 8336.4 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. McBreen'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. McBreen and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Thomas Sean McBreen treated 286 Medicare patients in 2024, average age 75
CMS counts 286 Medicare patients who saw Dr. McBreen in 2024. The largest group is 65 to 74, with 157 patients. 61% of them have high cholesterol, and 55% have high blood pressure. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. McBreen's median patient age at 69, with 49% women.
Dr. McBreen's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. McBreen's Medicare patients by sex, 2024
- Women14049%
- Men14651%
Chronic conditions among Dr. McBreen's Medicare patients, 2024
- High cholesterol61%
- High blood pressure55%
- Arthritis53%
- Atrial fibrillation19%
- Asthma17%
- Ischemic heart disease17%
- Diabetes16%
- Anxiety15%
Share of Medicare patients with each condition. A patient can have several.
Dr. McBreen's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women49%
- Men50%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Thomas Sean McBreen wrote 6,025 Medicare Part D claims in 2024
In 2024, Dr. McBreen wrote 6,025 Medicare Part D claims for 423 patients. 90% of them were for generic drugs. CMS names the drug for 5,340 of them, across 107 drugs with 11 or more claims each, at $254,231 in total drug cost. In 2023, CMS named 5,177 claims across 108 drugs.
Dr. McBreen's Part D claims by kind of drug, 2024
- Generic5,452 claims90%
- Brand-name513 claims9%
- Other60 claims1%
Dr. McBreen'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. McBreen's Part D claims, 2024
- Opioids4%258 of 6,025 claims
- Antibiotics6%335 of 6,025 claims
- Antipsychotics, patients 65 and over1%49 of 6,025 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: 5,1772024: 5,3403%
Drugs named by CMS: 107 in 2024, 108 in 2023.
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 Sean McBreen scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. McBreen for performance year 2024, reported individually. CMS counts 54 procedures of removal of skin lesions by Dr. McBreen, more than 72% of the clinicians it reports for that procedure.
- MIPS final score, 2024
- 75 of 100
Where Dr. McBreen ranks in Medicare procedure volume
- Spinal fusion
- 60th percentile61 procedures
- Removal of skin lesions
- 72nd percentile54 procedures
- Laminectomy or laminotomy (partial removal of spine bones)
- 63rd percentile32 procedures
- Melanoma (skin cancer) excision
- 69th percentile14 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Thomas Sean McBreen received $432 in industry payments from 2016 to 2025
CMS Open Payments shows 8 general payments to Dr. McBreen from 6 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Amarin Pharma Inc. paid the most, $151.
General payments to Dr. McBreen by program year, 2016 to 2025
General payments to Dr. McBreen by kind, 2016 to 2025
- Food and beverage$42699%
- Education$61%
Companies that paid Dr. McBreen the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Thomas Sean McBreen graduated from Keck School of Medicine of USC
Dr. McBreen graduated from Keck School of Medicine of USC in 1979.
- Medical school
- Board certified in family medicine
Source: Dmand AI Professional Profile Data
Dr. Thomas Sean McBreen accepts plans from 15 insurance carriers
Dr. McBreen is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +7 more carriersWith a free account
Plan types Dr. McBreen accepts, by number of carriers
- PPO9
- HMO7
- Medicare7
- EPO4
- POS4
Source: Dmand AI Insurance Network Data
Sources for Dr. Thomas Sean McBreen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Thomas Sean McBreen
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 Sean McBreen's NPI number?
Dr. Thomas Sean McBreen's NPI number is 1275605578. It was assigned on November 14, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Thomas Sean McBreen?
Dr. Thomas Sean McBreen is a family medicine physician in Ventura, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Thomas Sean McBreen practice?
Dr. McBreen practices at 147 North Brent Street, Ventura, CA 93003. Dr. McBreen's primary practice is Community Memorial Hospital - Ventura in Ventura, California, part of Community Memorial Healthcare. Dmand AI also links Dr. McBreen to 3 home health agencies and 1 group practice or clinic.
What is Dr. Thomas Sean McBreen's office phone number?
The practice phone on file for Dr. McBreen is (805) 652-5011.
What is Dr. Thomas Sean McBreen's medical license number?
Dr. McBreen holds California license G42708.
Which hospitals is Dr. Thomas Sean McBreen affiliated with?
Dr. McBreen practices at Community Memorial Hospital - Ventura in Ventura, California.
What medical group is Dr. Thomas Sean McBreen part of?
Dr. McBreen is linked to Community Memorial Healthcare.
Does Dr. Thomas Sean McBreen accept Medicare?
Yes. CMS data shows Dr. McBreen billed Medicare for 1,740 services in 2024.
What is Dr. Thomas Sean McBreen's MIPS score?
Dr. McBreen's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. Thomas Sean McBreen see?
CMS counts 286 Medicare patients who saw Dr. McBreen in 2024, with an average age of 75.
Show 7 more questionsShow fewer questions
Is Dr. Thomas Sean McBreen board certified?
Yes. Dr. McBreen is board certified in family medicine by the National Board of Physicians and Surgeons.
What services does Dr. Thomas Sean McBreen bill to Medicare?
In 2024, Dr. McBreen's most billed Medicare services were office visit, established patient (99213), office visit, established patient (99214) and injected or infused drug (J3301).
Where did Dr. Thomas Sean McBreen go to medical school?
Dr. McBreen graduated from Keck School of Medicine of USC in 1979.
What drugs does Dr. Thomas Sean McBreen prescribe most?
In 2024 Medicare Part D data, Dr. McBreen's most prescribed drugs by claims were Lisinopril, Atorvastatin Calcium and Levothyroxine Sodium.
Has Dr. Thomas Sean McBreen received payments from drug or device companies?
CMS Open Payments shows $432 in general payments to Dr. McBreen from 6 companies from 2016 to 2025. The largest total came from Amarin Pharma Inc.
How long has Dr. Thomas Sean McBreen been practicing?
Dr. McBreen graduated from medical school in 1979, 47 years ago.
What insurance does Dr. Thomas Sean McBreen accept?
Dr. McBreen is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.
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