Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. David A Tegrotenhuis, DDS
Dentist in Friday Harbor, WA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003920612
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. David A Tegrotenhuis
Credential DDS
Sex Male
Practice address 110 Rhone St, Friday Harbor, WA, 98250
Phone (360) 378-2888
Enumeration date Aug 19, 2006
Last updated in NPPES Jun 27, 2012
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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
What is the NPI number for David Tegrotenhuis?
The National Provider Identifier (NPI) for David Tegrotenhuis is 1003920612, a Type 1 (individual) record in the CMS NPPES registry.
Where does David Tegrotenhuis practice?
The practice location on file with NPPES is in Friday Harbor, WA. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-27.