Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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MS. Rocio Montelongo, MA

Individual provider Addiction (Substance Use Disorder) Counselor · NPI 1609001742

MS. Rocio Montelongo, MA is an Addiction (Substance Use Disorder) Counselor in Ontario, California. Practices as a sole proprietor. Registered with an NPI since 2009.

In the registry since
2009
What do these letters mean?
MA — Master of Arts
A graduate arts degree.

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Practice location Address checks out

125 W F St
Ontario, CA 91762-3262
Phone: (909) 986-4550
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Addiction (Substance Use Disorder) Counselor (primary) Taxonomy 101YA0400X

Record details

NPI number1609001742
Entity typeIndividual (Type 1)
GenderFemale
Credentials MA
Sole proprietorYes
NPI enumeratedMay 19, 2009
Last updated in NPPESMay 19, 2009

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