Dr. Gregory Dammann, MD

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

• Fhn Memorial Hospital Hospital · Freeport, IL · listed as Freeport Memorial Hospital
• Midwest Medical Center Hospital · Galena, IL

Colleagues at Midwest Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 36 clinicians in the practice; 12 are shown here.

• Dr. Todd W Bannen, MD Emergency Medicine Physician · Barrington, IL
• Mrs. Lisa Ann Bourquin, FNP-APNP Family Nurse Practitioner · Galena, IL
• Joseph S Colla, MD Emergency Medicine Physician · Chicago, IL
• Dr. Elizabeth Ann Gullone, MD Family Medicine Physician · Galena, IL
• Dr. Cullen Timothy Kehoe, DO Emergency Medicine Physician · Lake Geneva, WI
• Stephanie Klein, ARNP, CRNA Certified Registered Nurse Anesthetist · Dubuque, IA
• Anna Marie Lorence, MD Emergency Medicine Physician · Iowa City, IA
• Ali M Malick, MD Rheumatology Physician · Galena, IL
• Jennifer K McClimon, CRNA Certified Registered Nurse Anesthetist · Boscobel, WI
• Danielle Seegmiller, ARNP Family Nurse Practitioner · Galena, IL
• Brett Patrick Sjoberg, MD Student in an Organized Health Care Education/Training Program · Madison, WI
• Dr. Michael J Wells, MD Family Medicine Physician · Galena, IL

Other providers in Galena

• Dr. William J Farrell, MD

  Individual Orthopaedic Surgery Physician · NPI 1467450411

  1 Medical Center Dr, Galena, IL 61036-8118 · (815) 777-1340