Dr. John D. Zander , MD
Colon & Rectal Surgery • Springfield, IL
Notice of NPI Deactivation & Inactive Practice Status
According to official public domain records published by CMS (Centers for Medicare & Medicaid Services) in the National Provider Identifier (NPPES) Registry, Dr. John Zander has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Dr. John Zander, MD was a registered Colon & Rectal Surgery practicing in Springfield, IL. Throughout an active medical career spanning 20 years, Dr. Zander provided care at the practice location at 900 N. 1ST STREET until profile deactivation on 2026-07-02.
Practice Location & Contact Primary Location
900 N. 1st Street
Springfield, IL 627023749
Specialty Benchmarks & Practice Insights
Comparative analytics for Colon & Rectal Surgery in Springfield, IL
Practicing in Springfield, IL (99 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
NUCC Taxonomy Code: 208C00000X
A colon and rectal surgeon is trained to diagnose and treat various diseases of the intestinal tract, colon, rectum, anal canal and perianal area by medical and surgical means. This specialist also deals with other organs and tissues (such as the liver, urinary and female reproductive system) involved with primary intestinal disease.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Family Medicine
Doctor of Medicine (M.D.)
Physician Assistant - Surgical
Nurse Practitioner - Family
Nurse Practitioner - Family
Advanced Practice Nurse
Physician Assistant
Physician Assistant (Certified)
Counselor
Licensed Clinical Professional Counselor
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on July 02, 2026
Registered at 1751 WASHINGTON AVE, ALTON, IL 620024624 (Tel: 7738399794)
Registered at 1751 WASHINGTON AVE, ALTON, IL 620024624 (Tel: 7738399794)
Registered at 1170 E BELVIDERE RD STE 12, GRAYSLAKE, IL 600302061 (Tel: 7738399794)
Registered at 1170 E BELVIDERE RD STE 12, GRAYSLAKE, IL 600302061 (Tel: 7738399794)
Surgery (License #036062146 in IL)
NPI status registered as active in NPPES database
Registered at 900 N. 1ST STREET, SPRINGFIELD, IL 627023749 (Tel: 2175287541)
Registered at 1025 S 6TH ST, SPRINGFIELD, IL 627032403 (Tel: 2175287541)
Recorded as JOHN ZANDER, M.D.
Colon & Rectal Surgery (License #036-062146 in IL)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
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NPI Administrative Meta
Mailing Address
1025 S 6th St
Springfield, IL 627032403
Phone: 2175287541
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