Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ms. Callan Howton, MPH, CRADC

Addiction (Substance Use Disorder) Counselor in Saint Louis, MO · enumerated 2016 · practices at Haven Recovery Homes.

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

National Provider Identifier

1154771988

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Registry record

Entity type Individual (Type 1)

Name Ms. Callan Howton

Credential MPH, CRADC

Sex Female

Practice address 3649 Meramec St, Saint Louis, MO, 63116

Phone (314) 930-9384

Enumeration date Jun 13, 2016

Last updated in NPPES May 29, 2024

Taxonomy & licenses

175T00000X Peer Specialist Other Service Providers Secondary

3747P1801X Personal Care Attendant Nursing Service Related Providers Secondary

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers · License 9315 (MO) 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

How do I verify Callan Howton's NPI record?

Cross-check NPI 1154771988 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1154771988 active?

Yes, as of the latest NPPES snapshot, NPI 1154771988 is active (record last updated 2024-05-29).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-05-29.