A longtime Kodiak, Alaska physician has been indicted on federal tax evasion charges, nearly three years after FBI agents first raided his clinic. His name is Dr. John Michael Koller, and he’s the medical director and owner of the Kodiak Island Ambulatory Care Clinic.
A federal grand jury indicted Koller on five counts of tax evasion. He’s expected to enter a plea at a hearing on October 9, 2026, in U.S. District Court in Anchorage.
What He’s Accused Of
Prosecutors say Koller concealed cash income from his medical clinic, used inaccurate and fraudulent financial records, instructed employees to destroy records, and gave false statements to investigators about the clinic’s income. The alleged conduct covers tax years 2018 through 2022.
The clinic operates as an S-corporation, offering family medicine, urgent care, and minor surgery to the Kodiak community. Because of how S-corporations work, Koller was required to report the business’s ordinary income on his own personal federal tax returns. According to the indictment, for the 2018 and 2019 tax years specifically, Koller filed false corporate and individual tax returns, kept falsified accounting records that understated the clinic’s bank deposits, and withheld details about cash income from the certified public accountants he’d hired to prepare his filings.
The FBI Raid That Started It All
This case has a long runway behind it. Back in November 2023, FBI agents searched the Kodiak Island Ambulatory Care Clinic using a state search warrant, with the bureau’s Anchorage field office confirming at the time that agents were assisting the Alaska Medicaid Fraud Control Unit. The search lasted about six hours, and agents also took Koller’s cell phones during the process.
Koller described being in shock over the search at the time, saying officers approached him directly and told him to put his hands up before searching him. He said his understanding was that investigators were partly looking for drugs, both at the clinic and at his home, but that no drugs were found. Despite the raid, no charges were filed immediately, and the clinic stayed open throughout the nearly three-year investigation that followed.
His Background in the Community
Koller has lived and practiced medicine in Kodiak for more than two decades. According to provider directories, he earned his medical degree from the University of Minnesota Medical School and has roughly 34 years of experience in family medicine, treating patients at both the Kodiak Island Ambulatory Care Clinic and Providence Kodiak Island Medical Center.
Where the Case Stands
Koller’s defense attorney, Dunnington Babb of Cashion Gilmore & Lindemuth, declined to comment on the specifics of the case when contacted, but noted that his client is presumed innocent. Staff at the Kodiak Island Ambulatory Care Clinic referred questions about the indictment directly to Koller’s legal counsel, while confirming the clinic remains open and continues seeing patients.
Right now, the charges against Koller remain allegations, and he’s presumed innocent unless the government proves its case in court. His upcoming plea hearing in Anchorage should offer the first clear sense of how he intends to respond to the five felony counts against him.