Dr. John A. Greager II Sentenced and Fined $1 Million for Billing Mole Removals as Separate Visits

Case from 2022–2023 (U.S. Attorney's Office latest release: June 16, 2023). Published on Scammers.com Oct. 16, 2026; case status is current as of that date.

Dr. John A. Greager II, 75, of Hinsdale, Illinois, was sentenced June 13, 2023, to six months in federal prison and fined $1 million. He had submitted fraudulent claims to Medicare and Blue Cross Blue Shield of Illinois for mole removals, according to the U.S. Attorney's Office for the Northern District of Illinois [1]. He pleaded guilty in 2023 to health care fraud before U.S. District Judge Robert W. Gettleman.

How the scheme worked

According to the U.S. Attorney's Office [1]:

1. Splitting procedures. Greager owned Cancer Therapy Associates S.C. in Lombard, Illinois. From 2015 to 2021, he removed several moles from a patient on a single date but billed as if they were removed on separate dates. He admitted knowing insurers paid more that way.
2. Delaying lab tests. To hide the scheme, he stored the moles at his office and held off sending them for pathology testing, so the lab reports made it look as if they were removed on different dates. The release says this delayed critical testing for serious illnesses, including cancer.
3. Fake charts. He created fake patient charts, including pre- and post-operative notes for procedures on dates when he was not in Illinois. After a Medicare audit, he told staff to create false records.
4. The payout. Medicare and BCBS paid him about $1.7 million as a result of the scheme.

The 2022 charging document had alleged about $4.1 million in fraudulent payments. It also alleged that some services were medically unnecessary and that he removed more moles than was medically necessary [2]. At sentencing, the U.S. Attorney's Office cited the $1.7 million figure [1].

The person sentenced

Dr. John A. Greager II, 75, Hinsdale, Ill. [1]

• Charge: health care fraud, filed by information on July 12, 2022 [2].
• Plea: guilty (2023).
• Sentence: 6 months in prison and a $1 million fine, imposed June 13, 2023.
• Investigation: the FBI, HHS-OIG, the Department of Labor OIG and the Office of Personnel Management OIG.

Red flags (for patients)

• Insurance statements showing several visits or procedures when you had one appointment.
• Long delays in getting biopsy or pathology results.
• Being told you need many more moles or lesions removed than seems reasonable. Get a second opinion.

What to do

1. Compare every Explanation of Benefits or Medicare Summary Notice with your own record of appointments.
2. Ask when your biopsy was sent to the lab and follow up if results are slow.
3. Report suspected billing fraud to the HHS-OIG hotline at oig.hhs.gov or your insurer's fraud unit.

Case status (as of Oct. 16, 2026)

Defendant	Court	Status as of Oct. 16, 2026	Source
John A. Greager II, 75, Hinsdale, Ill.	N.D. Ill.	Pleaded guilty to health care fraud (2023); sentenced June 13, 2023, to 6 months and a $1M fine	[1], [2]

Sources

1. U.S. Attorney's Office, Northern District of Illinois, "Suburban Chicago Doctor Sentenced to Federal Prison and Fined $1 Million for Health Care Fraud," June 16, 2023. https://www.justice.gov/usao-ndil/pr/suburban-chicago-doctor-sentenced-federal-prison-and-fined-1-million-health-care-fraud
2. U.S. Attorney's Office, Northern District of Illinois, "Suburban Chicago Doctor Charged with Health Care Fraud in Connection with Alleged False Claims to Medicare and Private Insurer," July 12, 2022. https://www.justice.gov/usao-ndil/pr/suburban-chicago-doctor-charged-health-care-fraud-connection-alleged-false-claims

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