Dr. Jack Eff , MD
General Practice • Davenport, FL
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. Jack Eff has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Dr. Jack Eff, MD was a registered General Practice practicing in Davenport, FL. Throughout an active medical career spanning 16 years, Dr. Eff provided care at the practice location at 1556 CHALLENGER AVE until profile deactivation on 2026-07-16.
Practice Location & Contact Primary Location
1556 Challenger Ave
Davenport, FL 338976404
Specialty Benchmarks & Practice Insights
Comparative analytics for General Practice in Davenport, FL
Practicing in Davenport, FL (2490 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
NUCC Taxonomy Code: 208D00000X
A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on July 16, 2026
NPI status registered as active in NPPES database
Registered at 1556 CHALLENGER AVE, DAVENPORT, FL 338976404 (Tel: 8634206513)
Registered at 1556 CHALLENGER AVE, DAVENPORT, FL 338976404
Recorded as JACK EFF, M.D.
General Practice (License #MD043079E in PA)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
1556 Challenger Ave
Davenport, FL 338976404
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