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Internal Medicine

Laura A. Castillon, MD

Sees patients in Goleta, CA · San Luis Obispo, CA · California

Summary

Laura A. Castillon, MD (Internal Medicine) is enrolled with Medicare at 2 practice locations in Goleta, CA and San Luis Obispo, CA. NPI 1700580966. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

Call(805) 565‑0020 NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Laura A. Castillon, 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

2Practice locations
Internal MedicinePrimary specialty
YesAccepts Medicare assignment
3Years since medical school (graduated 2023)
FemaleGender (as listed)
The Regents of the University of CaliforniaGroup practice

Quick answers

Where does Laura A. Castillon see patients?
Medicare's clinician data lists 2 practice locations, including Goleta, CA and San Luis Obispo, CA. Call before your visit to confirm the address.
What is Laura A. Castillon's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Laura A. Castillon accept Medicare assignment?
Yes. Medicare's clinician data says Laura A. Castillon 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 Laura A. Castillon?
(805) 565-0020, as listed in official Medicare / NPI Registry data.
What is Laura A. Castillon's NPI number?
1700580966. 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 Laura A. Castillon is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Laura A. Castillon as a member of this group (CMS data updated 2026-10-02).

  • The Regents of the University of California1,462 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Goleta

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

All internal medicine doctors in Goleta →

Clinician information

CredentialMD
Graduation year2023
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1700580966
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