Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Douglas Cleo Langfald, M.A., CLIN. PSYCHOLO

Mental Health Counselor in Mason City, IA · enumerated 2010.

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

National Provider Identifier

1154632867

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Registry record

Entity type Individual (Type 1)

Name Mr. Douglas Cleo Langfald

Credential M.A., CLIN. PSYCHOLO

Sex Male

Practice address 980 South Iowa Ave, Mason City, IA, 50402

Phone (641) 423-3222

Fax (641) 423-1740

Enumeration date Jun 28, 2010

Last updated in NPPES Jun 28, 2010

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License LMSW#03630 (IA) 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

Where does Douglas Langfald practice?

The practice location on file with NPPES is in Mason City, IA. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Douglas Langfald?

The National Provider Identifier (NPI) for Douglas Langfald is 1154632867, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-06-28.