Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Zephyr LLC

Q: What is the NPI number for Zephyr LLC?

The NPI for Zephyr LLC is 1659233807, a Type 2 (organization) record in the CMS NPPES registry.

Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility in Saint Louis, MO · enumerated 2025 · authorized official Onyema Nnanna, MD.

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

National Provider Identifier

1659233807

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Registry record

Entity type Organization (Type 2)

Legal business name Zephyr LLC

Practice address 536 N Taylor Ave, Saint Louis, MO, 63108

Phone (617) 982-8328

Enumeration date Nov 25, 2025

Last updated in NPPES Nov 25, 2025

Taxonomy & classification

251E00000X Home Health Agency Agencies Secondary

253J00000X Foster Care Agency Agencies Secondary

320600000X Intellectual and/or Developmental Disabilities Residential Treatment Facility Residential Treatment Facilities Secondary

320900000X Intellectual and/or Developmental Disabilities Community Based Residential Treatment Facility Residential Treatment Facilities Primary

385H00000X Respite Care Respite Care Facility Secondary

385HR2060X Child Intellectual and/or Developmental Disabilities Respite Care Respite Care Facility Secondary

Authorized official

Name Onyema Nnanna

Title MD

Phone (617) 982-8328

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

Who is the authorized official for Zephyr LLC?

NPPES lists Onyema Nnanna (MD) as the authorized official for this organization.

What is the NPI number for Zephyr LLC?

The NPI for Zephyr LLC is 1659233807, a Type 2 (organization) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-25.