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Joanna Mahto, LCSW

Clinical Social Worker in Portland, OR · enumerated 2013 · practices at Metropolitan Pediatrics, LLC.

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

National Provider Identifier

1891135828

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Registry record

Entity type Individual (Type 1)
Name Joanna Mahto
Credential LCSW
Sex Female
Practice address 1130 Nw 22nd Ave Ste 320, Portland, OR, 97210
Phone (503) 295-2546
Fax (503) 790-1248
Enumeration date Jul 5, 2013
Last updated in NPPES Feb 13, 2023

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License L6642 (OR) 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 Joanna Mahto?
The National Provider Identifier (NPI) for Joanna Mahto is 1891135828, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joanna Mahto practice?
The practice location on file with NPPES is in Portland, OR. 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 2023-02-13.