Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Peter Rene Then, DMD DR MED DENT
Periodontics in South Portland, ME · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1003986589
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Registry record
Entity type Individual (Type 1)
Name Dr. Peter Rene Then
Credential DMD DR MED DENT
Sex Male
Practice address 254 Western Avenue, South Portland, ME, 04106
Phone (207) 774-5527
Fax (207) 780-1188
Enumeration date Nov 9, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
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
Is NPI 1003986589 active?
Yes, as of the latest NPPES snapshot, NPI 1003986589 is active (record last updated 2007-07-08).
How do I verify Peter Then's NPI record?
Cross-check NPI 1003986589 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.