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Mental Health Counselor

Rocio Montelongo

Sees patients in El Monte, CA · California

Summary

Rocio Montelongo is a mental health counselor at 3569 Lexington Ave, El Monte, CA 91731. Phone: (626) 453-3399. Accepts Medicare assignment. NPI 1578961777. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Mental health counselor
  • Address: 3569 Lexington Ave, El Monte, CA 91731 · Directions (1 more location)
  • Phone: (626) 453‑3399
  • Medicare: Accepts Medicare assignment
  • Group practice: Pacific Clinics
  • School: graduated 2009
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Rocio Montelongo, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Rocio Montelongo accept Medicare assignment?
Yes. Medicare's clinician data says Rocio Montelongo accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Rocio Montelongo's NPI number?
1578961777. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Rocio Montelongo is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Rocio Montelongo as a member of this group (CMS data updated October 2, 2026).

  • Pacific Clinics72 clinicians in the group

Specialties

Find other clinicians: Mental Health Counselor, California →

Other mental health counselors in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

All mental health counselors in California →

Other clinicians in Pacific Clinics

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

Graduation year2009
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1578961777
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians