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Emergency Medicine

Sally S. Mahmoud, MD

Works at hospitals in Stanford, CA · California

Summary

Dr. Sally S. Mahmoud, MD is an emergency medicine doctor at 300 Pasteur Dr, Stanford, CA 94305. Phone: (650) 723-4000. Accepts Medicare assignment. In 2024, Sally S. Mahmoud had 425 Original Medicare patients and 502 services. NPI 1487044806. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 300 Pasteur Dr, Stanford, CA 94305 · Directions
  • Phone: (650) 723‑4000
  • Medicare: Accepts Medicare assignment
  • Hospital: Stanford Health Care
  • Group practice: Stanford Health Care
  • Medical school: Johns Hopkins University School Of Medicine · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Sally S. Mahmoud, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Sally S. Mahmoud accept Medicare assignment?
Yes. Medicare's clinician data says Sally S. Mahmoud accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Sally S. Mahmoud see?
In 2024, CMS data shows 425 Original Medicare patients and 502 services for Sally S. Mahmoud. This counts Original Medicare only and measures volume, not quality.
What is Sally S. Mahmoud's NPI number?
1487044806. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Sally S. Mahmoud, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients425
Services billed to Medicare502
Different services or procedures33
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)297 services
  2. Emergency department visit with moderate level of medical decision making (99284)65 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)32 services
  4. Ultrasound of heart, follow-up (93308)27 services
  5. Critical care, first 30-74 minutes (99291)12 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis44%
  • Ischemic heart disease39%
  • Chronic kidney disease38%
  • Diabetes36%

Hospitals where Sally S. Mahmoud works

Medicare's Facility Affiliation Data lists Sally S. Mahmoud at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441

Practice locations

Addresses where Sally S. Mahmoud is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Sally S. Mahmoud as a member of this group (CMS data updated October 2, 2026).

  • Stanford Health Care3,122 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Stanford

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

All emergency medicine doctors in Stanford →

Other clinicians in Stanford Health Care

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolJohns Hopkins University School Of Medicine
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1487044806
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 October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians