Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Gerhard Marx, LCSW-PIP

Q: What is the NPI number for Gerhard Marx?

The National Provider Identifier (NPI) for Gerhard Marx is 1144769522, a Type 1 (individual) record in the CMS NPPES registry.

Clinical Social Worker in Aberdeen, SD · enumerated 2017.

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

National Provider Identifier

1144769522

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Registry record

Entity type Individual (Type 1)

Name Mr. Gerhard Marx

Credential LCSW-PIP

Sex Male

Practice address Aberdeen, SD, 57401

Phone (605) 622-5000

Fax (605) 622-5670

Enumeration date Feb 17, 2017

Last updated in NPPES Feb 17, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 1450 (SD) Primary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 3228 (ND) Secondary

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 is the NPI number for Gerhard Marx?

The National Provider Identifier (NPI) for Gerhard Marx is 1144769522, a Type 1 (individual) record in the CMS NPPES registry.

Where does Gerhard Marx practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-02-17.