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Psychiatry

Maria T. Koshy, MD

Sees patients in Stockton, CA · California

Summary

Maria T. Koshy, MD (Psychiatry) is enrolled with Medicare at 1 practice location in Stockton, CA. NPI 1609019348. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Maria T. Koshy, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

PsychiatryPrimary specialty
YesAccepts Medicare assignment
17Years since medical school (graduated 2009)
Rush Medical College Of Rush UniversityMedical school
FemaleGender (as listed)
Permanente Medical Group IncGroup practice

Quick answers

Where does Maria T. Koshy see patients?
Medicare's clinician data lists 1 practice location in Stockton, CA. Call before your visit to confirm the address.
What is Maria T. Koshy's specialty?
Medicare lists Psychiatry as the primary specialty.
Does Maria T. Koshy accept Medicare assignment?
Yes. Medicare's clinician data says Maria T. Koshy accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Maria T. Koshy?
(209) 476-2000, as listed in official Medicare / NPI Registry data.
What is Maria T. Koshy's NPI number?
1609019348. 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 Maria T. Koshy is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Maria T. Koshy as a member of this group (CMS data updated 2026-10-02).

  • Permanente Medical Group Inc10,996 clinicians in the group

Specialties

Find other Psychiatry doctors in California →

Other psychiatrists in Stockton

Clinicians with the same Medicare primary specialty in Stockton, CA — not a recommendation.

All psychiatrists in Stockton →

Clinician information

CredentialMD
Medical schoolRush Medical College Of Rush University
Graduation year2009
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1609019348
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 2026-10-02, retrieved 2026-10-29
  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