Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Obstetrics/Gynecology

Michael L. Haydon, MD

Sees patients in San Clemente, CA · Irvine, CA · California

Summary

Michael L. Haydon, MD (Obstetrics/Gynecology) is enrolled with Medicare at 2 practice locations in San Clemente, CA and Irvine, CA. NPI 1679584676. 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 Michael L. Haydon, 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

Obstetrics/GynecologyPrimary specialty
YesAccepts Medicare assignment
26Years since medical school (graduated 2000)
University Of California, Irvine, California College Of MedicineMedical school
MaleGender (as listed)
Hoag ClinicGroup practice

Quick answers

Where does Michael L. Haydon see patients?
Medicare's clinician data lists 2 practice locations, including San Clemente, CA and Irvine, CA. Call before your visit to confirm the address.
What is Michael L. Haydon's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Michael L. Haydon accept Medicare assignment?
Yes. Medicare's clinician data says Michael L. Haydon 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 Michael L. Haydon?
(949) 829-5533, as listed in official Medicare / NPI Registry data.
What is Michael L. Haydon's NPI number?
1679584676. 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 Michael L. Haydon is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Michael L. Haydon as a member of this group (CMS data updated 2026-10-02).

  • Hoag Clinic460 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in San Clemente

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

All OB-GYNs in San Clemente →

Clinician information

CredentialMD
Medical schoolUniversity Of California, Irvine, California College Of Medicine
Graduation year2000
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1679584676
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