Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Sierra L John, LSW

Social Worker in Logan, OH · enumerated 2021.

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

National Provider Identifier

1750055596

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Registry record

Entity type Individual (Type 1)

Name Sierra L John

Credential LSW

Sex Female

Practice address 541 State Route 664 N, Logan, OH, 43138

Phone (740) 773-4366

Enumeration date Aug 5, 2021

Last updated in NPPES Feb 6, 2025

Taxonomy & licenses

171M00000X Case Manager/Care Coordinator Other Service Providers Secondary

104100000X Social Worker Behavioral Health & Social Service Providers · License S.2106232 (OH) Primary

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Sierra John?

Sierra John is registered in NPPES with the primary taxonomy of Social Worker. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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.

Other providers at this practice address

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Makaila Tussing Professional Counselor · Logan, OH NPI 1811245848 Stacy Dingess Occupational Therapist · Logan, OH NPI 1619393261 Brett Wilson Psychiatric/Mental Health Nurse Practitioner · Logan, OH NPI 1164839031 Jennifer Murphy Clinical Social Worker · Logan, OH NPI 1306241849 Elizabeth Semmens Professional Counselor · Logan, OH NPI 1366150443 Kara Copestick Case Manager/Care Coordinator · Logan, OH NPI 1053004549 Jacqueline Phillips Case Manager/Care Coordinator · Logan, OH NPI 1407687601 Nida Iqbal Social Worker · Logan, OH NPI 1396562575

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-02-06.