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

Obstetrics/Gynecology

John J. Willems, MD

Works at hospitals in La Jolla, CA · California

Summary

John J. Willems, MD (Obstetrics/Gynecology) is listed by Medicare at 2 hospitals in La Jolla, CA. NPI 1184664591. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about John J. Willems, 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
YesOffers telehealth
53Years since medical school (graduated 1973)
New York Medical CollegeMedical school
MaleGender (as listed)
Scripps HealthGroup practice

Quick answers

Which hospitals does John J. Willems work at?
Medicare's official clinician data lists John J. Willems at 2 hospitals: Scripps Green Hospital and Scripps Memorial Hospital La Jolla. This is where the clinician works or has privileges; call the hospital to confirm.
Where does John J. Willems see patients?
Medicare's clinician data lists 1 practice location in San Diego, CA. Call before your visit to confirm the address.
What is John J. Willems's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does John J. Willems accept Medicare assignment?
Yes. Medicare's clinician data says John J. Willems 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.
Does John J. Willems offer telehealth?
Medicare's clinician data says John J. Willems offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for John J. Willems?
(858) 764-3000, as listed in official Medicare / NPI Registry data.
What is John J. Willems's NPI number?
1184664591. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where John J. Willems works

Medicare's Facility Affiliation Data lists John J. Willems at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where John J. Willems is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists John J. Willems as a member of this group (CMS data updated 2026-10-02).

  • Scripps Health1,433 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in San Diego

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

All OB-GYNs in San Diego →

Clinician information

CredentialMD
Medical schoolNew York Medical College
Graduation year1973
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1184664591
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. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians