Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gail Susan Nelson, LISW

Clinical Social Worker in Celina, OH · enumerated 2019 · practices at Topp Counseling LLC.

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

National Provider Identifier

1427617307

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Registry record

Entity type Individual (Type 1)

Name Gail Susan Nelson

Credential LISW

Sex Female

Practice address 123 Summit St, Celina, OH, 45822

Phone (419) 584-5906

Fax (567) 890-0385

Enumeration date Jun 13, 2019

Last updated in NPPES Feb 20, 2020

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License I1901643 (OH) Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers 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

Is NPI 1427617307 active?

Yes, as of the latest NPPES snapshot, NPI 1427617307 is active (record last updated 2020-02-20).

How do I verify Gail Nelson's NPI record?

Cross-check NPI 1427617307 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Topp Counseling LLC Mental Health Clinic/Center (Including Community Mental Health Center) · Celina, OH NPI 1558874677 Megan Greve Social Worker · Celina, OH NPI 1467111526

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-20.