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Internal Medicine

Pam Grewall, MD

Works at hospitals in San Jose, CA · California

Summary

Pam Grewall, MD (Internal Medicine) is listed by Medicare at 1 hospital in San Jose, CA. NPI 1578580445. 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 Pam Grewall, 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

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
26Years since medical school (graduated 2000)
New York College Of Osteo Medicine Of New York Institute Of TechnologyMedical school
FemaleGender (as listed)
County of Santa ClaraGroup practice

Quick answers

Which hospitals does Pam Grewall work at?
Medicare's official clinician data lists Pam Grewall at 1 hospital: Santa Clara Valley Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Pam Grewall see patients?
Medicare's clinician data lists 2 practice locations, including San Jose, CA. Call before your visit to confirm the address.
What is Pam Grewall's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Pam Grewall accept Medicare assignment?
Yes. Medicare's clinician data says Pam Grewall 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 Pam Grewall?
(408) 885-5000, as listed in official Medicare / NPI Registry data.
What is Pam Grewall's NPI number?
1578580445. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Pam Grewall works

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

Group practices

Medicare enrollment lists Pam Grewall as a member of this group (CMS data updated 2026-10-02).

  • County of Santa Clara1,022 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in San Jose

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

All internal medicine doctors in San Jose →

Clinician information

CredentialMD
Medical schoolNew York College Of Osteo Medicine Of New York Institute Of Technology
Graduation year2000
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1578580445
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