Dr. Brian Christopher Callaghan, MD

Dr. Callaghan practices at University Hospital in Ann Arbor, Michigan.

Dr. Callaghan's NPI, 1619032901, was assigned on December 27, 2006. Dr. Callaghan graduated from Perelman School of Med at the University of Pennsylvania in 2004. Dr. Callaghan holds Michigan license 4301091601.

Dr. Callaghan's primary practice is University Hospital, at 1500 E Medical Center Dr, Ann Arbor, MI 48109. The practice phone is (734) 936-4000.

Dr. Callaghan's primary practice is University Hospital in Ann Arbor, Michigan. Dr. Callaghan is also affiliated with University Hospital. The medical group on file is University of Michigan Health. Dr. Callaghan's employer is on file too: a school & student health.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Callaghan practices, 2 sites in all. Vendor and product names are available with a free account.

Neurology is Dr. Callaghan's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dmand AI has Dr. Callaghan's licenses on file in 2 states: Michigan and Pennsylvania.

CMS data shows 14 Medicare services from Dr. Callaghan across 1 procedure code in 2023, for 29 Medicare patients. Medicare paid $481 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 29 Medicare patients who saw Dr. Callaghan in 2024. The largest group is 65 to 74, with 17 patients. 75% of them have high cholesterol, and 72% have high blood pressure. Their average risk score is 1.82, 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. Callaghan's median patient age at 63, with 51% women.

In 2024, Dr. Callaghan wrote 42 Medicare Part D claims for 19 patients. 90% of them were for generic drugs. CMS names the drug for 18 of them, across 1 drug with 11 or more claims each, at $818 in total drug cost. In 2022, CMS named 25 claims across 2 drugs.

Dr. Callaghan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 175 papers to Dr. Callaghan, published from 2009 to 2025. 2020 was the busiest year, with 18. The most frequent topics are Diabetes Mellitus, Type 2, Diabetic Neuropathies and Obesity. Dr. Callaghan has published most often in Neurology. Dr. Callaghan's most frequent co-authors are Eva Lucille Feldman, MD, Kevin Anthony Kerber, MD and James Francis Burke, MD.

Dmand AI links Dr. Callaghan to 3 clinical trials. Conditions studied include Peripheral Nervous System Diseases, Polyneuropathies and Inflammation. University of Michigan sponsors the most, 2.

CMS Open Payments shows 1 general payment to Dr. Callaghan from 1 drug or device company in 2021. Food and beverage make up the largest share, 100% of the total. Amarin Pharma Inc. paid the most, $12.

Dr. Callaghan graduated from Perelman School of Med at the University of Pennsylvania in 2004.