1. Home
  2. Directory
  3. California
  4. Palo Alto
  5. Nurse Practitioner
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ANDREW O'BRIEN NP
NPI 1295553378
Nurse Practitioner - Adult Health in Palo Alto, CA

Active since September 28, 2024PECOS Enrolled
795 EL CAMINO REAL, PALO ALTO, CA 94301(650) 853-3355 Get Directions Write a Review

NPPES record last updated: October 8, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Oct 8, 2026, Sep 28, 2024 (2 updates tracked since 2024).

About Andrew O'brien Np NPPES

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

ANDREW O'BRIEN NP (NPI 1295553378) is an individual adult health provider in Palo Alto, California, licensed in California (95032397) and active in the NPI registry since September 2024. He is enrolled in Medicare PECOS and maintains a secondary practice location in San Francisco.

NPPES Registry Identity

NPI1295553378
Entity TypeIndividualMale
Primary Taxonomy363LA2200X
Provider Legal NameANDREW O'BRIENCredential: NP
Location Address795 EL CAMINO REALPalo Alto, CA 94301-2302
Mailing AddressPo Box 276950Sacramento, CA 95827-6950
Phone(650) 853-3355
Sole ProprietorNo
Enumeration DateSeptember 28, 2024
Last NPPES UpdateOctober 8, 20262 updates tracked since enumeration
NPPES CertifiedOctober 8, 2026
✔ NPI 1295553378 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Adult HealthPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2200X
License✔ Licensed in CA · 95032397
795 EL CAMINO REAL, Palo Alto, CA 94301
Open in Google Maps ↗

Secondary Practice Location 1

Location 14150 Clement StSan Francisco, CA 94121-1563 · Phone (415) 221-4810

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 O'brien Np is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94301 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$106.47 typical visit price
range $70.37 – $206.04
Typical copayment $26.61 (range $17.59 – $51.51)
Most-billed visit code 99203
Established Patient
$121.77 typical visit price
range $23.96 – $169.60
Typical copayment $30.44 (range $5.99 – $42.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. SHIRA BETH LIPTON M.D.
Dermatology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2982
DR. KATHERINE A KWIATKOWSKI MD
Psychiatry & Neurology (Psychiatry)
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2904
MS. HEATHER HUGHES ROSE PT
Physical Therapist
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (707) 280-2417
CRYSTAL TSAI MS, RD
Dietitian, Registered
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2961
RUTH ROTHMAN MD
Dermatology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-4865
WINONA TAN M.D.
Obstetrics & Gynecology
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2917
SHERRY HUANG MD
Family Medicine
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 853-2984
DR. JULIA MCKENZIE GABHART M.D.
Pediatrics
795 EL CAMINO REAL
PALO ALTO, CA 94301
Santa Clara County (650) 321-4121

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Andrew O'brien's NPI number?

The NPI number for Andrew O'brien is 1295553378. It was assigned to this individual provider in the NPPES registry on September 28, 2024.

Where is Andrew O'brien located?

Andrew O'brien practices at 795 El Camino Real, Palo Alto, CA 94301. The listed phone number is (650) 853-3355.

What is Andrew O'brien's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Adult Health, with taxonomy code 363LA2200X.

Is Andrew O'brien enrolled in Medicare?

Yes. Andrew O'brien is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Andrew O'brien was last updated on October 8, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.