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Psychiatry

James S. Kastendiek, MD

Sees patients in Lomita, CA · Harbor City, CA · California

Summary

Dr. James S. Kastendiek, MD is a psychiatrist at 2081 Palos Verdes Dr N, Lomita, CA 90717. Phone: (310) 325-6542. Accepts Medicare assignment. NPI 1295062925. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Psychiatrist (Medicare lists Psychiatry)
  • Address: 2081 Palos Verdes Dr N, Lomita, CA 90717 · Directions (2 more locations)
  • Phone: (310) 325‑6542
  • Medicare: Accepts Medicare assignment
  • Group practice: Southern California Permanente Medical Group
  • Medical school: graduated 2007 (19 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about James S. Kastendiek, 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 James S. Kastendiek accept Medicare assignment?
Yes. Medicare's clinician data says James S. Kastendiek 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 James S. Kastendiek's NPI number?
1295062925. 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 James S. Kastendiek is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists James S. Kastendiek as a member of this group (CMS data updated October 2, 2026).

  • Southern California Permanente Medical Group11,293 clinicians in the group

Specialties

Find other Psychiatry doctors in California →

Other psychiatrists in Lomita

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

All psychiatrists in Lomita →

Other clinicians in Southern California Permanente Medical Group

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

Clinician information

CredentialMD
Graduation year2007 (19 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1295062925
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