ANDREW MICHAEL BRENNAN JR. MD
NPI 1770043168
Pediatrics - Pediatric Cardiology in Palo Alto, CA

Q: What is Andrew Brennan's NPI number?

The NPI number for Andrew Brennan is 1770043168. It was assigned to this individual provider in the NPPES registry on March 21, 2019.

Q: What is Andrew Brennan's specialty?

The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Cardiology, with taxonomy code 2080P0202X.

Q: When was this NPI record last updated?

The NPPES record for Andrew Brennan was last updated on January 16, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since March 21, 2019PECOS Enrolled

725 WELCH RD, PALO ALTO, CA 94304(650) 497-8000 Get Directions Write a Review

NPPES record last updated: January 16, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

Record update history: Jan 16, 2026, Mar 21, 2019 (2 updates tracked since 2019).

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About Andrew Michael Brennan Jr. Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANDREW MICHAEL BRENNAN JR. MD (NPI 1770043168) is an individual pediatric cardiology provider in Palo Alto, California, licensed in California (A180245) and active in the NPI registry since March 2019. He is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1770043168

Entity TypeIndividualMale

Primary Taxonomy2080P0202X

Provider Legal NameANDREW MICHAEL BRENNAN JR.Credential: MD

Location Address725 WELCH RDPalo Alto, CA 94304-1601

Mailing Address6 Seamount DrWhippany, NJ 07981-1619 · (973) 735-3916

Phone(650) 497-8000

Sole ProprietorNo

Medical School CMSOtherGraduated 2019

Enumeration DateMarch 21, 2019

Last NPPES UpdateJanuary 16, 20262 updates tracked since enumeration

NPPES CertifiedJanuary 16, 2026

✔ NPI 1770043168 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPediatrics · Pediatric CardiologyAllopathic & Osteopathic Physicians

Taxonomy Code2080P0202X

License✔ Licensed in CA · A180245

Definition

A pediatric cardiologist provides comprehensive care to patients with cardiovascular problems. This specialist is skilled in selecting, performing and evaluating the structural and functional assessment of the heart and blood vessels, and the clinical evaluation of cardiovascular disease.

725 WELCH RD, Palo Alto, CA 94304

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Andrew Michael Brennan Jr. Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID446738561

PECOS Enrollment IDI20260130001293

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.