Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. George Karl Koch III, D.M.D.
Endodontics in Brookline, MA · enumerated 2016.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528410321
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Registry record
Entity type Individual (Type 1)
Name Dr. George Karl Koch III
Credential D.M.D.
Sex Male
Practice address 21 Longwood Ave, Brookline, MA, 02446
Phone (617) 738-0806
Enumeration date Jul 6, 2016
Last updated in NPPES Aug 15, 2025
Taxonomy & licenses
DMD · Doctor of Medicine in Dentistry: A licensed dentist; DMD and DDS are equivalent dental degrees.
About the DMD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
Where does George Koch practice?
The practice location on file with NPPES is in Brookline, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for George Koch?
The National Provider Identifier (NPI) for George Koch is 1528410321, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Wilfred Mamuya Cardiovascular Disease Physician · Brookline, MA NPI 1215999255 Shmuel Ravid Cardiovascular Disease Physician · Brookline, MA NPI 1699731885 Charles Blatt Cardiovascular Disease Physician · Brookline, MA NPI 1043277619 Vikas Saini Specialist · Brookline, MA NPI 1407954787 Dara Lee Lewis Cardiovascular Disease Physician · Brookline, MA NPI 1578692018 Mariam Ghavamian Dmd PC Orthodontics and Dentofacial Orthopedics Dentistry · Brookline, MA NPI 1275733263 Vikas Saini MD PC Cardiovascular Disease Physician · Brookline, MA NPI 1295078129 Stephanie Lee Dentist · Brookline, MA NPI 1215637525
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-15.