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Family Practice

Theresa J. Kim, DO

Sees patients in Brea, CA · Downey, CA · California

Summary

Dr. Theresa J. Kim, DO is a family doctor at 109 N Thistle Rd, Brea, CA 92821. May accept Medicare assignment. NPI 1043914369. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Family doctor (Medicare lists Family Practice)
  • Address: 109 N Thistle Rd, Brea, CA 92821 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • Medical school: graduated 2023 (3 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Theresa J. Kim, 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 Theresa J. Kim accept Medicare assignment?
Medicare's clinician data says Theresa J. Kim may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Theresa J. Kim's NPI number?
1043914369. 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 Theresa J. Kim is enrolled with Medicare (CMS data updated October 2, 2026).

  • 109 N Thistle RdBrea, CA 92821
  • 11500 Brookshire AveDowney, CA 90241

Specialties

Find other Family Practice doctors in California →

Other family doctors in Brea

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

All family doctors in Brea →

Clinician information

CredentialDO
Graduation year2023 (3 years since medical school)
Gender (as listed)Female
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1043914369
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