Steven Zenker, MD
Pediatrics • Alton, IL
Information from public sources; not independently verified. Confirm hours, insurance and appointment availability with the clinic.
Last gathered July 11, 2026. How our information is sourced · Report incorrect information
About
Steven Zenker, MD is a board-certified pediatrician in Alton, Illinois who treats patients from birth to age 18. He provides preventative care including wellness exams, vaccinations, and sports physicals, as well as treatment for illnesses, injuries, and chronic conditions like asthma and diabetes. Dr. Zenker earned his medical degree from Southern Illinois University School of Medicine and completed his pediatric training at the University of Missouri.
Services Offered
Not published.
Team
Insurance & Payment
Not published.
Languages Spoken
Social Media
Photos
Photos published by Steven Zenker, MD showing the pediatrics practice in Alton, IL.
What Patients Say
Overall sentiment across review platforms: positive
- BJC Healthcare: 4.7 out of 5 (73 ratings (6 written reviews))
- WebMD Care: 4.5 out of 5 (21 ratings (1 written review))
- Vitals: 4.4 out of 5 (22 ratings (1 written review))
Patients praise
- Knowledgeable provider
- Experienced pediatrician
- Very happy with care for children since birth
Common complaints
- "Poor experience" mentioned in one review
"Zenker is very straightforward but he is very knowledgeable and you can tell that he has seen or heard it all when it comes to childhood illnesses."
- Healthgrades"I am very happy to write a review for Dr. Zenker. He has been my daughters doctor since birth, and I couldn't be happier with my choice."
- Yelp/Yahoo Local"Poor experience with Dr. Zenker. Would not recommend."
- VitalsSynthesized from public review platforms as of Jul 11, 2026 - sources: [1][2][3][4].
In the News
- Dr. Steven Zenker, MD – Pediatrician for Acute Upper Respiratory ... - Jan 7, 2026
- BJC Medical Group Alton Multispecialists - Aug 26, 2025
- ZENKER STEVEN MD - 1 Professional Dr, Alton, Illinois - Doctors - Oct 22, 2025
- Medifast, Inc. (MED) Q4 2025 Earnings Call Transcript | Seeking Alpha - Feb 17, 2026
- Medifast, Inc. (MED) Q2 2025 Earnings Call Transcript | Seeking Alpha - Aug 5, 2025
Information sourced from the clinic's website as of July 11, 2026.
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