NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Mary Anne Secrist, MS, RN, CNS

Psychiatric/Mental Health Clinical Nurse Specialist in Oklahoma City, OK · enumerated 2005 · practices at Siavash Nael MD Inc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1962401653

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Registry record

Entity type Individual (Type 1)
Name Ms. Mary Anne Secrist
Credential MS, RN, CNS
Sex Female
Practice address 4720 S Western Ave, Oklahoma City, OK, 73109
Phone (405) 634-5529
Fax (405) 636-1673
Enumeration date Jul 15, 2005
Last updated in NPPES Jul 13, 2026

Taxonomy & licenses

364SP0808X Psychiatric/Mental Health Clinical Nurse Specialist Physician Assistants & Advanced Practice Nursing Providers · License R0026857 (OK) Primary
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

Other identifiers

Identifier Type State Issuer
R0026857 Other OK RN License

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.

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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 Mary Anne Secrist?
Mary Anne Secrist is registered in NPPES with the primary taxonomy of Psychiatric/Mental Health Clinical Nurse Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-07-13.