Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sonya Poiesz, FNP
Nurse Practitioner in Madawaska, ME · enumerated 2012.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1851664585
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Registry record
Entity type Individual (Type 1)
Name Sonya Poiesz
Credential FNP
Sex Female
Practice address 460 Main St Ste 201, Madawaska, ME, 04756
Phone (207) 728-7300
Fax (207) 728-7838
Enumeration date Feb 10, 2012
Last updated in NPPES Feb 10, 2012
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R042494 (ME) Primary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan.
About the FNP 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 Sonya Poiesz practice?
The practice location on file with NPPES is in Madawaska, ME. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sonya Poiesz?
The National Provider Identifier (NPI) for Sonya Poiesz is 1851664585, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-02-10.