Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ekatherina Diadiuk, FNP-C
Nurse Practitioner in Houlton, ME · enumerated 2024.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1205664414
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Registry record
Entity type Individual (Type 1)
Name Ekatherina Diadiuk
Credential FNP-C
Sex Female
Practice address 59 Bangor St, Houlton, ME, 04730
Phone (207) 538-3700
Enumeration date Jul 22, 2024
Last updated in NPPES Sep 4, 2025
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License CNP251450 (ME) Primary
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 Ekatherina Diadiuk?
The National Provider Identifier (NPI) for Ekatherina Diadiuk is 1205664414, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ekatherina Diadiuk practice?
The practice location on file with NPPES is in Houlton, ME. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Dawn Mcginnis Family Nurse Practitioner · Houlton, ME NPI 1700858354 Tammy Fortier Adult Health Nurse Practitioner · Houlton, ME NPI 1790725273 Jennifer Stevens Licensed Practical Nurse · Houlton, ME NPI 1790729184 Kristin Gallop Primary Care Nurse Practitioner · Houlton, ME NPI 1336165356 Suzanne Nelson Pediatrics Physician · Houlton, ME NPI 1508885989 Robert Lemoine Nurse Practitioner · Houlton, ME NPI 1891800249 Ronald Oldfield Physician Assistant · Houlton, ME NPI 1912003286 David Drohan Dentist · Houlton, ME NPI 1144316225
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-04.