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ALTA EAST BAY PATHOLOGY INC
NPI 1811130727
Pathology - Anatomic Pathology & Clinical Pathology in Castro Valley, CA

Active since April 08, 2009
20103 LAKE CHABOT ROAD, CASTRO VALLEY, CA 94546(510) 268-8683(510) 268-8865 Get Directions Write a Review

NPPES record last updated: April 8, 2009. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Alta East Bay Pathology Inc NPPES

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

ALTA EAST BAY PATHOLOGY INC (NPI 1811130727) is a healthcare organization registered as an anatomic pathology & clinical pathology in Castro Valley, California and active in the NPI registry since April 2009. The organization lists Annette Shaieb, President, as its authorized official.

NPPES Registry Identity

NPI1811130727
Entity TypeOrganization
Primary Taxonomy207ZP0102X
Legal Business NameALTA EAST BAY PATHOLOGY INC
Location Address20103 LAKE CHABOT ROADCastro Valley, CA 94546-5305
Mailing Address1633 Erringer Rd, 1st FloorSimi Valley, CA 93065-3583 · (805) 578-8300 · Fax (805) 578-3911
Phone(510) 268-8683
Fax(510) 268-8865
Organization SubpartNo
Authorized OfficialAnnette ShaiebPresident · (805) 578-8300
Enumeration DateApril 8, 2009
✔ NPI 1811130727 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians
Taxonomy Code207ZP0102X
License✔ Licensed in CA · 05D0599285
Definition
A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.
20103 LAKE CHABOT ROAD, Castro Valley, CA 94546
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alta East Bay Pathology Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

7

Medicare enrollment records show 7 clinicians reassign Medicare billing to Alta East Bay Pathology Inc, which bills Medicare for the services they deliver. They are listed nearest first.

Clinicians, nearest first (7)

Taylor Bronson, MD
Pathology
NPI 1780115279
350 HAWTHORNE AVE
Oakland, CA 94609
(510) 869-6567
✔ PECOS✔ Accepts Medicare13 mi
Lorelle Carlley, M.D.
Pathology
NPI 1821057050
350 HAWTHORNE AVE DEPT. OF PATHOLOGY
Oakland, CA 94609
(510) 869-6567
✔ PECOS✔ Accepts Medicare13 mi
Debra Gologorsky, M.D.
Pathology
NPI 1174592687
350 HAWTHORNE AVE
Oakland, CA 94609
(510) 869-6567
✔ PECOS13 mi
Emily O'rourke, M.D.
Pathology
NPI 1437492386
350 HAWTHORNE AVE
Oakland, CA 94609
(510) 204-1642
✔ PECOS✔ Accepts Medicare13 mi
Lynne Lin-Chang, M.D.
Pathology
NPI 1770516536
2510 WEBSTER ST
Berkeley, CA 94705
(510) 548-6555
✔ PECOS✔ Accepts Medicare14 mi
Maryna Vazmitsel, M.D.
Pathology
NPI 1245767029
2510 WEBSTER ST
Berkeley, CA 94705
(510) 548-6555
✔ PECOS✔ Accepts Medicare14 mi
Shajia Rahman Ansari
Pathology
NPI 1093277956
10833 LE CONTE AVE STE AS-370
Los Angeles, CA 90095
(310) 267-2680
✔ PECOS✔ Accepts Medicare323 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Alta East Bay Pathology Inc's NPI number?

The NPI number for Alta East Bay Pathology Inc is 1811130727. It was assigned to this organization in the NPPES registry on April 8, 2009.

Where is Alta East Bay Pathology Inc located?

Alta East Bay Pathology Inc is located at 20103 Lake Chabot Road, Castro Valley, CA 94546. The listed phone number is (510) 268-8683.

What is Alta East Bay Pathology Inc's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Alta East Bay Pathology Inc enrolled in Medicare?

Yes. Alta East Bay Pathology Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Alta East Bay Pathology Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 7 clinicians, all in Pathology, reassign their Medicare billing to Alta East Bay Pathology Inc. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Alta East Bay Pathology Inc was last updated on April 8, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.