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Neurosurgery

Cormac O. Maher, MD

Works at hospitals in Stanford, CA · California

Summary

Cormac O. Maher, MD (Neurosurgery) is listed by Medicare at 1 hospital in Stanford, CA. NPI 1043229073. 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 Cormac O. Maher, 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

NeurosurgeryPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
28Years since medical school (graduated 1998)
MaleGender (as listed)
Stanford Health CareGroup practice

Quick answers

Which hospitals does Cormac O. Maher work at?
Medicare's official clinician data lists Cormac O. Maher at 1 hospital: Stanford Health Care. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Cormac O. Maher see patients?
Medicare's clinician data lists 1 practice location in Stanford, CA. Call before your visit to confirm the address.
What is Cormac O. Maher's specialty?
Medicare lists Neurosurgery as the primary specialty.
Does Cormac O. Maher accept Medicare assignment?
Yes. Medicare's clinician data says Cormac O. Maher 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 Cormac O. Maher offer telehealth?
Medicare's clinician data says Cormac O. Maher offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Cormac O. Maher?
(650) 723-4000, as listed in official Medicare / NPI Registry data.
What is Cormac O. Maher's NPI number?
1043229073. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Cormac O. Maher works

Medicare's Facility Affiliation Data lists Cormac O. Maher 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 Cormac O. Maher is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Cormac O. Maher as a member of this group (CMS data updated 2026-10-02).

  • Stanford Health Care3,122 clinicians in the group

Specialties

Find other Neurosurgery doctors in California →

Other neurosurgeons in Stanford

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

All neurosurgeons in Stanford →

Clinician information

CredentialMD
Graduation year1998
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1043229073
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