Dr. Gerald J Marks , MD
Colon & Rectal Surgery • Wynnewood, PA
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. Gerald Marks has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Dr. Gerald Marks, MD was a registered Colon & Rectal Surgery practicing in Wynnewood, PA. Throughout an active medical career spanning 20 years, Dr. Marks provided care at the practice location at 100 E LANCASTER AVE until profile deactivation on 2026-04-09.
Practice Location & Contact Primary Location
100 E Lancaster Ave
Suite 330 Lankenau Mob West
Wynnewood, PA 190963450
Specialty Benchmarks & Practice Insights
Comparative analytics for Colon & Rectal Surgery in Wynnewood, PA
Practicing in Wynnewood, PA (126 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
Student in an Organized Health Care Education/Training Program
Doctor of Medicine (M.D.)
Colon & Rectal Surgery
Doctor of Medicine (M.D.)
Colon & Rectal Surgery
Doctor of Medicine (M.D.)
Physician Assistant
Physician Assistant (Certified)
Physician Assistant - Surgical
Physician Assistant (Certified)
Physician Assistant
Physician Assistant (Certified)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on April 09, 2026
NPI status registered as active in NPPES database
Registered at 100 E LANCASTER AVE, SUITE 330 LANKENAU MOB WEST, WYNNEWOOD, PA 190963450 (Tel: 6106459093)
Registered at 100 E LANCASTER AVE, SUITE 330 LANKENAU MOB WEST, WYNNEWOOD, PA 190963450 (Tel: 6106459093)
Recorded as GERALD MARKS, MD
Colon & Rectal Surgery (License #MD023151L in PA)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
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NPI Administrative Meta
Mailing Address
100 E Lancaster Ave, Suite 330 Lankenau Mob West
Wynnewood, PA 190963450
Phone: 6106459093
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