Dr. Robert A. Pfeffer , MD
Emergency Medicine • Ripon, WI
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. Robert Pfeffer has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Dr. Robert Pfeffer, MD was a registered Emergency Medicine practicing in Ripon, WI. Throughout an active medical career spanning 20 years, Dr. Pfeffer provided care at the practice location at 933 NEWBURY ST until profile deactivation on 2026-03-19.
Practice Location & Contact Primary Location
933 Newbury St
Ripon, WI 549711730
Specialty Benchmarks & Practice Insights
Comparative analytics for Emergency Medicine in Ripon, WI
Practicing in Ripon, WI (1497 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
NUCC Taxonomy Code: 207P00000X
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Emergency Medicine
Doctor of Medicine (M.D.)
Anesthesiology
Doctor of Medicine (M.D.)
Social Worker - Clinical
Licensed Clinical Social Worker
Nurse Anesthetist, Certified Registered
Certified Registered Nurse Anesthetist
Emergency Medicine
Doctor of Medicine (M.D.)
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on March 19, 2026
NPI status registered as active in NPPES database
Registered at 933 NEWBURY ST, RIPON, WI 549711730 (Tel: 9207483101)
Registered at 352 E WHITEFISH RD, PORT WASHINGTON, WI 530741337 (Tel: 2622842333)
Recorded as ROBERT PFEFFER, M.D.
Emergency Medicine (License #19540 in WI)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
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NPI Administrative Meta
Mailing Address
352 E Whitefish Rd
Port Washington, WI 530741337
Phone: 2622842333
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