
Jason J. McAllaster, DO
General Surgery • Effingham, IL • Since 1939
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
Jason J. McAllaster, DO is a provider affiliated with Springfield Clinic, part of the clinic’s network of physicians. He practices within the Effingham area as part of Springfield Clinic’s multi-specialty care offerings. The clinic operates 5 offices, including locations in Springfield, IL, and provides comprehensive primary and specialty care across more than 80 medical disciplines. For appointment availability or further details about Dr. McAllaster’s specialties, contact Springfield Clinic's main numbers or visit the Springfield Clinic website.
Services Offered
Team
Insurance & Payment
Not published.
Languages Spoken
Not published.
Social Media
Photos
Photos published by Jason J. McAllaster, DO showing the general surgery practice in Effingham, IL.

What Patients Say
Overall sentiment across review platforms: positive
- WebMD: 4.5/5 (12)
- U.S. News & World Report: 5/5 (243)
- Vitals: 4.4/5 (Not explicitly stated)
Patients praise
- High patient satisfaction rankings nationally
- Clear explanations of conditions and treatments
- Thorough examinations
- Good bedside manner
Common complaints
- Reports of significant wait times and lack of communication before surgery
"Clearly Explains Performs Thorough Exams Great Bedside Manner Patient."
- U.S. News & World Report"TERRIBLE. I was to be 2nd surgery patient. Left me laying on OR prep bed for over 3 hours. He NEVER came past curtain to see me."
- HealthgradesSynthesized from public review platforms as of Jul 11, 2026 - sources: [1][2][3][4].
In the News
- Dr. Philip J. Abraham, MD - Pulmonologist in Springfield, IL - May 14, 2026
- HSHS Medical Group Dr. Eduardo Vaca, General Surgeon, to Effingham – Effingham County Chamber - Nov 17, 2025
- Alissa B. Howard - Nurse Practitioner in Springfield, IL - May 14, 2026
- Springfield Clinic (alumni) - Springfield Business Journal - Mar 25, 2026
- Dr. Jeave Reserva, MD – Dermatologist for Acne in Springfield, IL - Apr 10, 2026
Information sourced from the clinic's website as of July 11, 2026.
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