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

Obstetrics/Gynecology

Deirdre A. Lum, MD

Works at hospitals in Stanford, CA · California

Summary

Deirdre A. Lum, MD (Obstetrics/Gynecology) is listed by Medicare at 1 hospital in Stanford, CA. NPI 1710120530. 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 Deirdre A. Lum, 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
19Years since medical school (graduated 2007)
University Of California, San Francisco School Of MedicineMedical school
FemaleGender (as listed)
Stanford Health CareGroup practice

Quick answers

Which hospitals does Deirdre A. Lum work at?
Medicare's official clinician data lists Deirdre A. Lum at 1 hospital: Stanford Health Care. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Deirdre A. Lum see patients?
Medicare's clinician data lists 1 practice location in Stanford, CA. Call before your visit to confirm the address.
What is Deirdre A. Lum's specialty?
Medicare lists Obstetrics/Gynecology as the primary specialty.
Does Deirdre A. Lum accept Medicare assignment?
Yes. Medicare's clinician data says Deirdre A. Lum 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 Deirdre A. Lum offer telehealth?
Medicare's clinician data says Deirdre A. Lum offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Deirdre A. Lum?
(650) 723-4000, as listed in official Medicare / NPI Registry data.
What is Deirdre A. Lum's NPI number?
1710120530. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Deirdre A. Lum works

Medicare's Facility Affiliation Data lists Deirdre A. Lum 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 Deirdre A. Lum is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

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

  • Stanford Health Care3,122 clinicians in the group

Specialties

Find other Obstetrics/Gynecology doctors in California →

Other OB-GYNs in Stanford

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

All OB-GYNs in Stanford →

Clinician information

CredentialMD
Medical schoolUniversity Of California, San Francisco School Of Medicine
Graduation year2007
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1710120530
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