Dr. John William Kotarski , DDS
Dentist • Springfield, MA
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 Kotarski has officially deactivated this NPI record and ceased active healthcare practice.
Professional Overview & Biography Verified Profile Summary
Dr. John Kotarski, DDS was a registered Dentist practicing in Springfield, MA. Throughout an active medical career spanning 19 years, Dr. Kotarski provided care at the practice location at 125 LIBERTY ST until profile deactivation on 2026-04-02.
Practice Location & Contact Primary Location
125 Liberty St
Suite 306
Springfield, MA 011031114
Specialty Benchmarks & Practice Insights
Comparative analytics for Dentist in Springfield, MA
Practicing in Springfield, MA (3030 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
NUCC Taxonomy Code: 122300000X
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Surgery - Pediatric Surgery
Doctor of Medicine (M.D.)
Internal Medicine
Doctor of Medicine (M.D.)
Counselor - Mental Health
Counselor - Mental Health
Counselor - Mental Health
Counselor - Mental Health
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Record deactivated on April 02, 2026
NPI status registered as active in NPPES database
Registered at 125 LIBERTY ST, SUITE 306, SPRINGFIELD, MA 011031114 (Tel: 4137336611)
Registered at 125 LIBERTY ST, SUITE 306, SPRINGFIELD, MA 011031114 (Tel: 4137336611)
Recorded as JOHN KOTARSKI, D.D.S.
Dentist (License #9094 in MA)
First registered as active Individual Practitioner in NPPES Database.
Patient & Community Reviews
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NPI Administrative Meta
Mailing Address
125 Liberty St, Suite 306
Springfield, MA 011031114
Phone: 4137336611
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