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MRS. ELIZABETH MARIA OCONNOR PAC
NPI 1356598403
Physician Assistant in Walnut Creek, CA

Active since August 20, 2008PECOS Enrolled
1601 YGNACIO VALLEY RD, JOHN MUIR MEDICAL CENTER, WALNUT CREEK, WALNUT CREEK, CA 94598(925) 947-5266 Get Directions Write a Review

NPPES record last updated: January 11, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Mrs. Elizabeth Maria Oconnor Pac NPPES

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

MRS. ELIZABETH MARIA OCONNOR PAC (NPI 1356598403) is an individual physician assistant in Walnut Creek, California, licensed in California (PA20004) and active in the NPI registry since August 2008. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1356598403
Entity TypeIndividualFemale
Primary Taxonomy363A00000X
Provider Legal NameMRS. ELIZABETH MARIA OCONNORCredential: PAC
Location Address1601 YGNACIO VALLEY RD, JOHN MUIR MEDICAL CENTER, WALNUT CREEKWalnut Creek, CA 94598-3122
Mailing Address2100 Powell St Ste 900, Cep/medamerica, Inc.Emeryville, CA 94608-1844 · (510) 350-2600 · Fax (510) 879-9100
Phone(925) 947-5266
Sole ProprietorNo
Enumeration DateAugust 20, 2008
Last NPPES UpdateJanuary 11, 2022
✔ NPI 1356598403 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysician AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363A00000X
License✔ Licensed in CA · PA20004
Definition
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
1601 YGNACIO VALLEY RD, Walnut Creek, CA 94598
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Other Names 1

Other Name (5)Elizabeth Maria Barbera

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Elizabeth Maria Oconnor Pac 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 94598 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
Established Patient
$84.91 typical visit price
range $23.44 – $166.46
Typical copayment $21.22 (range $5.86 – $41.61)
Most-billed visit code 99213
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.

MALCOLM C JOHNSON MD
Emergency Medicine
1601 YGNACIO VALLEY RD
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-3000
KEVIN GEORGE KAISER MD
Anesthesiology
1601 YGNACIO VALLEY RD
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-3000
DAVID CURTIS FITZGERALD MD
Anesthesiology
1601 YGNACIO VALLEY RD
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-3000
MOUSSA F YAZBECK MD INC
Personal Emergency Response Attendant
1601 YGNACIO VALLEY RD
WALNUT CREEK, CA 94598
Contra Costa County (479) 806-5319
IMRAN SAEED KHAN MD
Pediatrics (Neonatal-Perinatal Medicine)
1601 YGNACIO VALLEY RD
WALNUT CREEK, CA 94598
Contra Costa County (925) 947-5350
HAYWON LIEH MD
Anesthesiology
1601 YGNACIO VALLEY RD
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-3000
ALICE DECKER HUNTER M.D.
Emergency Medicine
1601 YGNACIO VALLEY RD
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-3000
DAVID AARON SHAPIRO MD
Anesthesiology
1601 YGNACIO VALLEY RD
WALNUT CREEK, CA 94598
Contra Costa County (925) 939-3000

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 Elizabeth Oconnor's NPI number?

The NPI number for Elizabeth Oconnor is 1356598403. It was assigned to this individual provider in the NPPES registry on August 20, 2008. The provider is also known as Elizabeth Maria Barbera.

Where is Elizabeth Oconnor located?

Elizabeth Oconnor practices at 1601 Ygnacio Valley Rd John Muir Medical Center, Walnut Creek, Walnut Creek, CA 94598. The listed phone number is (925) 947-5266.

What is Elizabeth Oconnor's specialty?

The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.

Is Elizabeth Oconnor enrolled in Medicare?

Yes. Elizabeth Oconnor is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Elizabeth Oconnor was last updated on January 11, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.