Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Kathryne Merlock
Social Worker in Troy, IL · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538890223
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Registry record
Entity type Individual (Type 1)
Name Kathryne Merlock
Sex Female
Practice address 197b E Us Highway 40, Troy, IL, 62294
Phone (618) 505-0784
Fax (618) 505-0785
Enumeration date Jun 22, 2022
Last updated in NPPES Jun 22, 2022
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 150107468 (IL) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 150107468 | Other | IL | LICENSED SOCIAL WORKER |
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
Is NPI 1538890223 active?
Yes, as of the latest NPPES snapshot, NPI 1538890223 is active (record last updated 2022-06-22).
How do I verify Kathryne Merlock's NPI record?
Cross-check NPI 1538890223 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-06-22.