Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Sheena Nidiffer
Peer Specialist in Afton, OK · enumerated 2018.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639654429
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Registry record
Entity type Individual (Type 1)
Name Sheena Nidiffer
Sex Female
Practice address 138 S. Main St, Afton, OK, 74331
Phone (918) 257-4244
Enumeration date Sep 27, 2018
Last updated in NPPES Oct 23, 2018
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
Where does Sheena Nidiffer practice?
The practice location on file with NPPES is in Afton, OK. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Sheena Nidiffer?
The National Provider Identifier (NPI) for Sheena Nidiffer is 1639654429, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Stacey Jameson Mental Health Counselor · Afton, OK NPI 1043441249 Zachary Kingfisher Peer Specialist · Afton, OK NPI 1831568617 Laurie Althouse Case Manager/Care Coordinator · Afton, OK NPI 1538526645 Russell Peters Family Nurse Practitioner · Afton, OK NPI 1093252439 Donna Cunningham Social Worker · Afton, OK NPI 1831617844 Jaime Siegmann Peer Specialist · Afton, OK NPI 1003397084 Grand Lake Mental Health Center, Inc. Mental Health Clinic/Center (Including Community Mental Health Center) · Afton, OK NPI 1366082208 Dakota Barnett Peer Specialist · Afton, OK NPI 1952056889
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-10-23.