Dr. Jeffrey R. Breneisen, MD

Dr. Breneisen practices at NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare.

Dr. Breneisen's NPI, 1629058615, was assigned on January 18, 2006. Dr. Breneisen graduated from University of Illinois College of Medicine - Chicago in 1993. Dr. Breneisen holds California license G86677.

Dr. Breneisen's primary practice is NorthBay Medical Center, at 1200 B Gale Wilson Blvd, Fairfield, CA 94533 in Solano County. The practice phone is (707) 646-5000.

Dr. Breneisen's primary practice is NorthBay Medical Center in Fairfield, California, part of NorthBay Healthcare. Dr. Breneisen is also affiliated with Sutter Medical Center, Sacramento. The medical group on file is NorthBay Medical Center. Dmand AI also links Dr. Breneisen to 3 more group practices and clinics and 2 medical groups, each named with a free account.

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

Cardiovascular disease is Dr. Breneisen's primary specialty in the NPI Registry, under taxonomy code 207RC0000X. Dr. Breneisen is board certified in cardiovascular disease by the National Board of Physicians and Surgeons. Dmand AI has Dr. Breneisen's licenses on file in 3 states: California, Pennsylvania and Iowa.

Dmand AI lists aneurysm, atrial fibrillation and flutter, cardiac catheterization, cardiomyopathy, cerebrovascular disease, chronic hypertension, coronary artery disease and heart blockage among the conditions Dr. Breneisen treats.

CMS data shows 4,086 Medicare services from Dr. Breneisen across 29 procedure codes in 2024, for 1,097 Medicare patients. Medicare paid $336,080 for them.

CMS counts 1,097 Medicare patients who saw Dr. Breneisen in 2024. The largest group is 75 to 84, with 380 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 37% are also on Medicaid. Their average risk score is 2.02, 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. Breneisen's median patient age at 66, with 47% women.

In 2024, Dr. Breneisen wrote 3,604 Medicare Part D claims for 497 patients. 80% of them were for generic drugs. CMS names the drug for 3,349 of them, across 44 drugs with 11 or more claims each, at $945,991 in total drug cost. In 2023, CMS named 2,897 claims across 42 drugs.

Dr. Breneisen accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Breneisen as offering telehealth. CMS counts 46 procedures of pacemaker insertion or repair by Dr. Breneisen, more than 88% of the clinicians it reports for that procedure.

Dmand AI links 1 paper to Dr. Breneisen.

CMS Open Payments shows 1,087 general payments to Dr. Breneisen from 63 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. Biotronik Inc. paid the most, $4,114.

Dr. Breneisen graduated from University of Illinois College of Medicine - Chicago in 1993.

Dr. Breneisen is in network with 13 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.