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Pediatric Medicine

Andrew M. Brennan

Sees patients in Palo Alto, CA · Pasadena, CA · California

Summary

Andrew M. Brennan is a pediatrician at 500 Pasteur Dr, Rm P388, Palo Alto, CA 94304. May accept Medicare assignment. NPI 1770043168. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Pediatrician (Medicare lists Pediatric Medicine)
  • Address: 500 Pasteur Dr, Rm P388, Palo Alto, CA 94304 · Directions (1 more location)
  • Medicare: May accept Medicare assignment
  • Medical school: graduated 2019 (7 years since medical school)
  • Gender (as listed): Male
NPI Registry record Medicare profile

From official Medicare data

This page shows what Medicare's official clinician data says about Andrew M. Brennan, 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 Andrew M. Brennan accept Medicare assignment?
Medicare's clinician data says Andrew M. Brennan may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
What is Andrew M. Brennan's NPI number?
1770043168. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Andrew M. Brennan is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other Pediatric Medicine doctors in California →

Other pediatricians in Palo Alto

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

All pediatricians in Palo Alto →

Clinician information

Graduation year2019 (7 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1770043168
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians