Dr. Christopher Patrick Larsen, MD

Dr. Larsen practices at Arkana Laboratories in Portland, Oregon.

Dr. Larsen's NPI, 1447434840, was assigned on December 20, 2007. Dr. Larsen graduated from University of Arkansas College of Medicine in 2005. Dr. Larsen holds Arkansas license E-5397.

Dr. Larsen's primary practice is Arkana Laboratories, at 100 SW Market St, Portland, OR 97201 in Multnomah County. The practice phone is (501) 604-2695.

Dr. Larsen's primary practice is Arkana Laboratories in Portland, Oregon. The medical group on file is Arkana Laboratories. Dmand AI also links Dr. Larsen to 1 more group practice or clinic and 1 medical group, each named with a free account.

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

Anatomic pathology is Dr. Larsen's primary specialty in the NPI Registry, under taxonomy code 207ZP0101X. Dr. Larsen is licensed in Arkansas.

CMS data shows 994 Medicare services from Dr. Larsen across 6 procedure codes in 2024, for 64 Medicare patients. Medicare paid $19,290 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 64 Medicare patients who saw Dr. Larsen in 2024. The largest group is 75 to 84, with 28 patients. 75% of them have chronic kidney disease, and 75% have high blood pressure. Their average risk score is 1.88, 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. Larsen's median patient age at 56, with 49% women.

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

CMS Open Payments shows 31 general payments to Dr. Larsen from 8 drug and device companies from 2016 to 2025. Consulting fees make up the largest share, 91% of the total. Novartis Pharmaceuticals Corporation paid the most, $15,127.

Dr. Larsen graduated from University of Arkansas College of Medicine in 2005.