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Physician Assistant

Jon C. Lacy, PA

Sees patients in Orange, CA · Yorba Linda, CA · Laguna Niguel, CA … · California

Summary

Jon C. Lacy, PA (Physician Assistant) is enrolled with Medicare at 6 practice locations in Orange, CA, Yorba Linda, CA and Laguna Niguel, CA and other places. NPI 1588907638. 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 Jon C. Lacy, 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

Physician AssistantPrimary specialty
YesAccepts Medicare assignment
14Years since medical school (graduated 2012)
MaleGender (as listed)
Portola Medical Services PCGroup practice

Quick answers

Where does Jon C. Lacy see patients?
Medicare's clinician data lists 6 practice locations, including Orange, CA, Yorba Linda, CA and Laguna Niguel, CA. Call before your visit to confirm the address.
What is Jon C. Lacy's specialty?
Medicare lists Physician Assistant as the primary specialty.
Does Jon C. Lacy accept Medicare assignment?
Yes. Medicare's clinician data says Jon C. Lacy 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 Jon C. Lacy?
(844) 254-6382, as listed in official Medicare / NPI Registry data.
What is Jon C. Lacy's NPI number?
1588907638. 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 Jon C. Lacy is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 6; the Medicare profile lists all.

Group practices

Medicare enrollment lists Jon C. Lacy as a member of this group (CMS data updated 2026-10-02).

  • Portola Medical Services PC22 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, California →

Other physician assistants in Orange

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

All physician assistants in Orange →

Clinician information

CredentialPA
Graduation year2012
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1588907638
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