Dr. Charles Arthur Gundersen , MD
Internal Medicine • Naples, 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. Charles Gundersen has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Dr. Charles Gundersen, MD was a registered Internal Medicine practicing in Naples, FL. Throughout an active medical career spanning 20 years, Dr. Gundersen provided care at the practice location at 2171 PINE RIDGE RD until profile deactivation on 2026-01-15.
Practice Location & Contact Primary Location
2171 Pine Ridge Rd
Suite F
Naples, FL 341092002
Specialty Benchmarks & Practice Insights
Comparative analytics for Internal Medicine in Naples, FL
Practicing in Naples, FL (10650 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
NUCC Taxonomy Code: 207R00000X
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Internal Medicine - Cardiovascular Disease
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Ophthalmology
Doctor of Medicine (M.D.)
Obstetrics & Gynecology - Gynecology
Doctor of Medicine (M.D.)
Family Medicine - Geriatric Medicine
Doctor of Medicine (M.D.)
Ophthalmology
Doctor of Medicine (M.D.)
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on January 15, 2026
Internal Medicine (License #011896 in CT)
NPI status registered as active in NPPES database
Registered at 2171 PINE RIDGE RD, SUITE F, NAPLES, FL 341092002 (Tel: 2395667425)
Registered at 2171 PINE RIDGE RD, SUITE F, NAPLES, FL 341092002 (Tel: 2395667425)
Recorded as CHARLES GUNDERSEN, MD
Internal Medicine (License #ME88911 in FL)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
2171 Pine Ridge Rd, Suite F
Naples, FL 341092002
Phone: 2395667425
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