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

Mari Oxentenko, LPC

Professional Counselor in Phoenix, AZ · enumerated 2018 · practices at Jewish Family & Children'S Service.

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

National Provider Identifier

1518439108

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Registry record

Entity type Individual (Type 1)

Name Mari Oxentenko

Credential LPC

Sex Female

Practice address Phoenix, AZ, 85037

Phone (623) 234-9811

Fax (623) 234-9815

Enumeration date Dec 20, 2018

Last updated in NPPES Aug 10, 2022

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

Taxonomy & licenses

101YP2500X Professional Counselor Behavioral Health & Social Service Providers · License LPC-17749 (AZ) Primary

LPC · Licensed Professional Counselor: A licensed mental-health counselor providing psychotherapy. About the LPC credential

Other identifiers

Identifier	Type	State	Issuer
468914	Medicaid	AZ	-

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 Mari Oxentenko?

The National Provider Identifier (NPI) for Mari Oxentenko is 1518439108, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mari Oxentenko practice?

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

Other providers at this practice address

Browse all →

Rochelle Ryan Professional Counselor · Phoenix, AZ NPI 1295931400 Christopher Robinson Mental Health Counselor · Phoenix, AZ NPI 1992036131 Glenn Townsend Psychiatric/Mental Health Nurse Practitioner · Phoenix, AZ NPI 1275845935 Debra Hobaica Mental Health Counselor · Phoenix, AZ NPI 1922314699 Jewish Family & Children'S Service Community/Behavioral Health Agency · Phoenix, AZ NPI 1801103841 Nicole Westmoreland Professional Counselor · Phoenix, AZ NPI 1851663579 Daniel Halter Psychiatric/Mental Health Nurse Practitioner · Phoenix, AZ NPI 1962828681 Debra Timberlake Marriage & Family Therapist · Phoenix, AZ NPI 1215579594

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-08-10.