Mariana Osuna is a Ontario, California based counselor who is specialized as Mental Health Counselor. Active license number of Mariana Osuna is 126353 for Social Worker in California. Her current practice location is 1420 S Milliken Ave, Ontario. Patients can book an appointment with her at 909-988-2418.
Mariana Osuna is a licensed professional who helps individuals, couples, and families manage and overcome emotional, psychological, and behavioral challenges. She assess clients’ mental health conditions and develop personalized treatment plans to provide therapy for a range of mental health issues, including anxiety, depression, trauma, relationship issues, stress, grief, and life transitions.
Complete Profile:
Mariana Osuna speciality, credentials, practice address, contact phone number and fax are as below.
Patients can directly walk in or can call on the below given phone number for appointment.
| Name: | Mariana Osuna |
| Specialization: | Mental Health Counselor |
| Gender: | Female |
| Accepts Medicare Assignment: | No |
| Practice Address: | 1420 S Milliken Ave, Ontario,
California, 91761-2336 |
| Phone: | 909-988-2418 |
Professional Identification Codes:
NPI number stands for National Provider Identifier which is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS).
NPI details are as mentioned below.
| NPI Number: | 1497214936 |
| NPI Enumeration Date: | 14 Mar, 2019 |
| NPI Last Update On: | 30 Sep, 2024 |
Medical Licenses:
Doctors can have one or more medical licenses for different specialities in the same state or different states. Related medical licenses for Mariana Osuna are as mentioned below.
| License Number | Specialization | State | Status | |
| 126353 | Social Worker | California | Primary | |
| 104991 | Mental Health Counselor | California | Secondary | |
| 104991 | Social Worker | California | Secondary | |
Other Medical Identifiers:
Other legacy medical identifiers associated with Mariana Osuna such as Medicaid, Medicare PIN, NSC, UPIN etc. are mentioned as below.
| Identifier | Type | State | Issuer |
| 1041C0700X | Other | California | LICENSED CLINICAL SOCIAL WORKER (LCSW) |
Business Mailing Address:
Business mailing address can be used for mailing purpose only, for visiting purpose patients need to refer above mentioned address.
| Address: | 1420 S Milliken Ave,
Ontario, California |
| Zip: | 91761-2336 |
Patients can reach Mariana Osuna at
1420 S Milliken Ave, Ontario, California or can
call to book an appointment on 909-988-2418.
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Data of this site is collected from Medicare & Medicaid Services (CMS) and NPPES. Last updated on 09 February, 2026.