Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Todd Vincent Martensen, LCSW

Clinical Social Worker in Rolla, MO · enumerated 2012.

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

National Provider Identifier

1821340522

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Registry record

Entity type Individual (Type 1)

Name Todd Vincent Martensen

Credential LCSW

Sex Male

Practice address 1450 E 10th St, Rolla, MO, 65401

Phone (888) 403-1071

Enumeration date Oct 5, 2012

Last updated in NPPES Jan 22, 2019

Taxonomy & licenses

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 2015015801 (MO) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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 Todd Martensen?

The National Provider Identifier (NPI) for Todd Martensen is 1821340522, a Type 1 (individual) record in the CMS NPPES registry.

Where does Todd Martensen practice?

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

Other providers at this practice address

Browse all →

Donna Bond Psychiatric/Mental Health Registered Nurse · Rolla, MO NPI 1003892514 Fauzia Iqbal Psychiatry Physician · Rolla, MO NPI 1760468995 Deborah Frost Psychologist · Rolla, MO NPI 1134107097 Roxane Netzler Counselor · Rolla, MO NPI 1346228145 Paula Bonney Psychologist · Rolla, MO NPI 1568426674 Matthew Novak Clinical Psychologist · Rolla, MO NPI 1427147651 Peggy Fox Professional Counselor · Rolla, MO NPI 1598849341 Rebecca Holman Clinical Social Worker · Rolla, MO NPI 1669519070

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-22.