Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Santiago Duy, M.D.
Surgery Physician in Houlton, ME · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1437127255
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Registry record
Entity type Individual (Type 1)
Name Santiago Duy
Credential M.D.
Sex Male
Practice address 20 Hartford St, Houlton, ME, 04730
Phone (207) 532-7936
Fax (207) 532-7937
Enumeration date Mar 9, 2006
Last updated in NPPES May 10, 2017
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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 Santiago Duy practice?
The practice location on file with NPPES is in Houlton, ME. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Santiago Duy?
The National Provider Identifier (NPI) for Santiago Duy is 1437127255, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-05-10.