Katherine Diemer, MD - Freeport, IL - SSM Health
Family Medicine • Freeport, IL • Since 1872
About
Katherine Diemer, MD is associated with SSM Health’s Freeport, Illinois location. SSM Health is a Catholic, nonprofit health system serving the Midwest (IL, MO, OK, WI) with hospitals, primary and urgent care, and virtual/ambulatory services. The system emphasizes compassionate, patient-centered care and operates through hospitals, physician offices, home/hospice services, a transparent pharmacy benefit company, a health insurance subsidiary, and an accountable care organization. For Freeport-specific details (address, services, schedule), contact the Freeport site or SSM Health directly.
Clinic Type
Family Medicine
Address
1301 Kiwanis Drive, Freeport, IL 61032
Phone
815-235-1406
community.benefits@ssmhealth.com
Opening Hours
7:30 am - 5:00 pm
Telehealth
Yes
Services Offered
Team
Insurance & Payment
—
Languages Spoken
—
FAQs
What are the hours for SSM Health Monroe Clinic Medical Group?
7:30 am - 5:00 pm
Social Media
Photos








What Patients Say
Overall sentiment across review platforms: positive
- Ratings.MD: 4.7 out of 5 (102)
- SSM Health Official Site: 4.8 out of 5 (96)
- WebMD Care: 2.5 out of 5 (3)
- Healthgrades: 3.0 stars (2)
Patients praise
- Takes time to listen to concerns
- Easy to understand explanations
- Caring, empathetic, and compassionate demeanor
- Knowledgeable physician
- Personable and professional
Common complaints
- Limited number of low ratings on some aggregate sites
"Katherine is a caring and empathetic person. She takes the time to listen to me and explain things."
— Ratings.MD"Very knowledgeable physician. Kind caring and compassionate."
— Ratings.MD/SSM HealthSynthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Katherine Diemer, MD - Freeport, IL - SSM Health — Jun 19, 2026
- The Monroe Clinic, Inc. - Medicare — Jun 11, 2026
- Dr. Robert Bandera, MD | Family Medicine Specialist in Freeport, IL — Nov 21, 2025
- [PDF] Dean-Focus-Directory.pdf — Nov 30, 2025
- Charles Stuart, MD - Janesville, WI — Jul 17, 2025
Information sourced from the clinic's website as of July 11, 2026.
More family medicine clinics in Freeport
Mercyhealth, a nonprofit health system based in Rockford, Illinois, operates 85+ facilities across southern Wisconsin and northern Illinois, including Freeport, IL. It offers hospital, clinic, post-acute, and retail services, plus its own insurance company. Key recent updates include acquisitions of Freeport Health Network and FHN (effective 2026-01-01). Freeport, IL is one of its locations, with Mercyhealth hosting events such as an RN hiring event in Freeport. The system lists Freeport addresses and facilities in its Illinois/Wisconsin footprint, with its HQ at 8201 E Riverside Blvd, Rockford, IL.
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