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Infectious Disease

Saima Mahmood, MD

Works at hospitals in Castro Valley, CA · Midland, TX · California, Texas

Summary

Saima Mahmood, MD (Infectious Disease) is listed by Medicare at 2 hospitals in Castro Valley, CA and Midland, TX. NPI 1477555811. 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 Saima Mahmood, 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

Infectious DiseasePrimary specialty
YesAccepts Medicare assignment
27Years since medical school (graduated 1999)
FemaleGender (as listed)

Quick answers

Which hospitals does Saima Mahmood work at?
Medicare's official clinician data lists Saima Mahmood at 2 hospitals: Eden Medical Center and Midland Memorial Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Saima Mahmood see patients?
Medicare's clinician data lists 2 practice locations, including San Leandro, CA and Castro Valley, CA. Call before your visit to confirm the address.
What is Saima Mahmood's specialty?
Medicare lists Infectious Disease as the primary specialty, and also Internal Medicine.
Does Saima Mahmood accept Medicare assignment?
Yes. Medicare's clinician data says Saima Mahmood 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 Saima Mahmood?
(510) 895-4200, as listed in official Medicare / NPI Registry data.
What is Saima Mahmood's NPI number?
1477555811. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Saima Mahmood works

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

Specialties

Find other Infectious Disease doctors in California →

Other infectious disease doctors in San Leandro

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

All infectious disease doctors in San Leandro →

Clinician information

CredentialMD
Graduation year1999
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1477555811
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