Dr. Michael Harris Callahan, MD

Dr. Callahan practices at Northeast Georgia Otolaryngology in Braselton, Georgia.

Dr. Callahan's NPI, 1063564243, was assigned on January 17, 2007. Dr. Callahan graduated from Medical College of Georgia School of Medicine in 1996. Dr. Callahan holds Georgia license 045050.

Dr. Callahan's primary practice is Northeast Georgia Otolaryngology, at 1235 Friendship Rd, Braselton, GA 30517 in Jackson County. The practice phone is (770) 536-4352.

Dr. Callahan's primary practice is Northeast Georgia Otolaryngology in Braselton, Georgia. Dr. Callahan is also affiliated with Northeast Georgia Medical Center Gainesville. The medical group on file is Athletico Physical Therapy. Dmand AI also links Dr. Callahan to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Callahan practices, 4 sites in all. Vendor and product names are available with a free account.

Otolaryngic allergy is Dr. Callahan's primary specialty in the NPI Registry, under taxonomy code 207YX0602X. Dr. Callahan is licensed in Georgia.

CMS data shows 1,345 Medicare services from Dr. Callahan across 14 procedure codes in 2024, for 604 Medicare patients. Medicare paid $98,043 for them. Every service was in an office.

CMS counts 604 Medicare patients who saw Dr. Callahan in 2024. The largest group is 75 to 84, with 258 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.18, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Callahan's median patient age at 65, with 52% women.

In 2024, Dr. Callahan wrote 606 Medicare Part D claims for 317 patients. 96% of them were for generic drugs. CMS names the drug for 471 of them, across 14 drugs with 11 or more claims each, at $15,207 in total drug cost. In 2023, CMS named 529 claims across 15 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Callahan for performance year 2024, reported as part of a group. Dr. Callahan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

CMS Open Payments shows 59 general payments to Dr. Callahan from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 79% of the total. Stryker Corporation paid the most, $1,357.

Dr. Callahan graduated from Medical College of Georgia School of Medicine in 1996.