Dr. Karen Callahan, MD

With 20 years of practice, Dr. Karen Callahan is an established psychiatry provider, MD, after earning their medical degree at University Of Alabama School Of Medicine in 1990. Dr. currently practices at Grayson And Associates Pc in Birmingham, Alabama. Their National Provider Identifier (NPI) is 1154371508, and the profile below combines data from CMS NPPES, Medicare billing records, the HHS OIG exclusion list, and — where available — CMS Open Payments, Medicare Utilization, and Part D prescriber summaries.

CMS Medicare data shows Dr. Karen Callahan as a lower-volume psychiatry provider, treating approximately 131 Medicare beneficiaries and delivering 402 services in the most recent reporting year. That panel size indicates a smaller, more selective practice pattern.

Under the Physician Payments Sunshine Act, CMS reports that Dr. Karen Callahan received $629 in industry payments in 2023. Payments at this scale are typical for most practicing physicians and generally reflect routine educational activities.