Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Irene S Mcmahan, NP
Nurse Practitioner in Readfield, ME · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1477502227
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Registry record
Entity type Individual (Type 1)
Name Irene S Mcmahan
Credential NP
Sex Female
Practice address 2250 Millard Harrison Dr, Maranacook Community School Student Health Center, Readfield, ME, 04355
Phone (207) 685-4923
Fax (207) 685-9597
Enumeration date May 9, 2006
Last updated in NPPES Jul 10, 2008
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R016171 (ME) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority.
About the NP credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 416800099 | Medicaid | ME | - |
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 this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Irene Mcmahan?
Irene Mcmahan is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-10.