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Charles P Mayer-Twomey, LCSW

Clinical Social Worker in Arvada, CO · enumerated 2006 · practices at Mountain Thrive Counseling Pllc.

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

National Provider Identifier

1932262276

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Registry record

Entity type Individual (Type 1)
Name Charles P Mayer-Twomey
Credential LCSW
Sex Male
Practice address Arvada, CO, 80005
Phone (510) 689-3725
Enumeration date Dec 18, 2006
Last updated in NPPES Jun 29, 2026

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers Secondary
104100000X Social Worker Behavioral Health & Social Service Providers · License 28453 (CA) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 29373 (CA) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 09924139 (CO) 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.

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Frequently asked questions

What is the NPI number for Charles Mayer-Twomey?
The National Provider Identifier (NPI) for Charles Mayer-Twomey is 1932262276, a Type 1 (individual) record in the CMS NPPES registry.
Where does Charles Mayer-Twomey practice?
The practice location on file with NPPES is in Arvada, CO. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-06-29.