Marcelyn Opal Billy
Social Worker • Oceanside, CA
Professional Overview & Biography Verified Profile Summary
Marcelyn Billy is a registered healthcare professional specializing in Social Worker in Oceanside, CA. Practice services are available at 1816 PORTOFINO DR under active NPI credentials.
Practice Location & Contact Primary Location
1816 Portofino Dr
Oceanside, CA 920546130
Specialty Benchmarks & Practice Insights
Comparative analytics for Social Worker in Oceanside, CA
Practicing in Oceanside, CA (10507 Statewide)
In-Person Office Visits Only
Under CMS Medicare Fee Schedule vs Standard Submitted Charges
Medical Specialties & State Licenses
CMS Verified: 2025-10-15NUCC Taxonomy Code: 104100000X
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
Practice Associates & Co-Workers
Healthcare professionals and specialists practicing at this location or sharing practice phone/fax
Counselor - Mental Health
Counselor - Mental Health
Social Worker
Marriage & Family Therapist
Rehabilitation Practitioner
Master of Arts
Rehabilitation Practitioner
Master of Science
Career & Practice History Timeline
Chronological log of verified NPI updates, location relocations, credentials, and registry changes
Recorded as MARCELYN BILLY
Social Worker (License #ASW110331 in CA)
NPI status registered as active in NPPES database
Registered at 1816 PORTOFINO DR, OCEANSIDE, CA 920546130 (Tel: 7604336361)
Registered at 1519 PEPPERWOOD WAY, OCEANSIDE, CA 920565495 (Tel: 9147148453)
Recorded as MARCELYN O'DELL
Social Worker (License #ASW110331 in CA)
First registered as active Individual Practitioner in NPPES Database.
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NPI Administrative Meta
Mailing Address
1519 Pepperwood Way
Oceanside, CA 920565495
Phone: 9147148453
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