Dr. George B. Bren, MD
- Medicare services, 2022
- 366
- Part D claims, 2023
- 13
- Industry payments
- $96
- Affiliated sites
- 1
- State licenses
- 2
- Practice address
- 2500 Alhambra Ave, Martinez, CA 94553
- Practice phone
- Call (925) 370-5955
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Martinez Health Center
Martinez, California
Find Dr. Bren'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. George B. Bren is a cardiologist in Martinez, California
Dr. Bren practices at Martinez Health Center in Martinez, California.
Dr. Bren's NPI, 1013908276, was assigned on November 4, 2005. Dr. Bren graduated from Northwestern University Feinberg Medical School in 1975. Dr. Bren holds Maryland license D0042707.
- NPI
- 1013908276NPI Registry (opens in a new tab)
- NPI enumeration date
- November 4, 2005
- NPI status
- Active
- Practice phone
- (925) 370-5955
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 77
- Medical school graduation
- 1975
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. George B. Bren practices at Martinez Health Center in Martinez, California
Dr. Bren's primary practice is Martinez Health Center, at 2500 Alhambra Ave, Martinez, CA 94553 in Contra Costa County. The practice phone is (925) 370-5955.
- Martinez Health Center2500 Alhambra Ave, Martinez, CA 94553 · Contra Costa CountyPhone(925) 370-5955
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. George B. Bren is affiliated with 2 sites of care
Dr. Bren's primary practice is Martinez Health Center in Martinez, California. Dmand AI also links Dr. Bren to 1 physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. George B. Bren's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Bren practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Martinez Health Center | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. George B. Bren is one of 2,375 cardiologists in California
Cardiovascular disease is Dr. Bren's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dmand AI has Dr. Bren's licenses on file in 2 states: Maryland and District of Columbia.
Specialties and state licenses
- Cardiovascular disease, MarylandPrimary
- District of Columbia license
Cardiologists near Dr. Bren
Counts of cardiologists 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. George B. Bren billed Medicare for 366 services in 2022
CMS data shows 366 Medicare services from Dr. Bren across 7 procedure codes in 2022. Medicare paid $35,681 for them. Every service was in an office.
Dr. Bren's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 5482022: 15073%
- Drugs given in the office
- 2021: 5842022: 10882%
- Tests and treatments
- 2021: 3002022: 4485%
- Imaging
- 2021: 1522022: 3279%
- Other services
- 2021: 1572022: 3280%
Dr. Bren compared with the California median for cardiologists, 2022
- Dr. Bren
- California median
- Medicare services
- 366vs 1,56077% below
- Part D claims
- 13vs 1,41099% below
Medians across 2,237 cardiologists in California with Dmand AI profiles that report each measure.
Dr. Bren's most billed Medicare procedure codes, 2022
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. Bren and other cardiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. George B. Bren's patients have a median age of 83
Across all payers, Dmand AI patient panel data puts Dr. Bren's median patient age at 83, with 50% women.
Dr. Bren's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 83
Patient panel by sex, all payers
- Women50%
- Men50%
Source: Dmand AI Patient Panel Data
Dr. George B. Bren wrote 13 Medicare Part D claims in 2023
In 2023, Dr. Bren wrote 13 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $309 in total drug cost. In 2022, CMS named 350 claims across 12 drugs.
Dr. Bren'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.
Part D claims for drugs CMS names, 2022 to 2023
- 2022
- 2023
- Claims for drugs CMS names
- 2022: 3502023: 1396%
Drugs named by CMS: 1 in 2023, 12 in 2022.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. George B. Bren received $96 in industry payments from 2016 to 2020
CMS Open Payments shows 6 general payments to Dr. Bren from 4 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 100% of the total. Novartis Pharmaceuticals Corporation paid the most, $37.
General payments to Dr. Bren by program year, 2016 to 2020
Companies that paid Dr. Bren the most, 2016 to 2020
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. George B. Bren graduated from Northwestern University Feinberg Medical School
Dr. Bren graduated from Northwestern University Feinberg Medical School in 1975.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. George B. Bren'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 |
| 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. George B. Bren
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. George B. Bren's NPI number?
Dr. George B. Bren's NPI number is 1013908276. It was assigned on November 4, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. George B. Bren?
Dr. George B. Bren is a cardiologist in Martinez, California. The primary specialty in the NPI Registry is Cardiovascular Disease Physician (taxonomy code 207RC0000X).
Where does Dr. George B. Bren practice?
Dr. Bren practices at 2500 Alhambra Ave, Martinez, CA 94553. Dr. Bren's primary practice is Martinez Health Center in Martinez, California. Dmand AI also links Dr. Bren to 1 physician office.
What is Dr. George B. Bren's office phone number?
The practice phone on file for Dr. Bren is (925) 370-5955.
What is Dr. George B. Bren's medical license number?
Dr. Bren holds Maryland license D0042707, one of the licenses on file in 2 states.
Which states has Dr. George B. Bren been licensed in?
Dmand AI has state licenses on file for Dr. Bren in Maryland and District of Columbia.
Does Dr. George B. Bren accept Medicare?
Yes. CMS data shows Dr. Bren billed Medicare for 366 services in 2022.
What services does Dr. George B. Bren bill to Medicare?
In 2022, Dr. Bren's most billed Medicare services were office visit, established patient (99214), injected or infused drug (J2785) and nuclear medicine (78452).
Where did Dr. George B. Bren go to medical school?
Dr. Bren graduated from Northwestern University Feinberg Medical School in 1975.
What drugs does Dr. George B. Bren prescribe most?
In 2023 Medicare Part D data, Dr. Bren's most prescribed drugs by claims were Atorvastatin Calcium.
Has Dr. George B. Bren received payments from drug or device companies?
CMS Open Payments shows $96 in general payments to Dr. Bren from 4 companies from 2016 to 2020. The largest total came from Novartis Pharmaceuticals Corporation.
How long has Dr. George B. Bren been practicing?
Dr. Bren graduated from medical school in 1975, 51 years ago.
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