Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Chabot Nephrology Medical Group, Inc

Specialist in San Leandro, CA · enumerated 2006 · authorized official Julie Armstrong, Billing Administrator.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1912958422

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Registry record

Entity type Organization (Type 2)

Legal business name Chabot Nephrology Medical Group, Inc

Practice address 13851 E 14th St, 206, San Leandro, CA, 94578

Phone (510) 351-9373

Fax (510) 351-0616

Enumeration date May 12, 2006

Last updated in NPPES Dec 5, 2007

Taxonomy & classification

174400000X Specialist Other Service Providers Primary

Authorized official

Name Julie Armstrong

Title Billing Administrator

Phone (510) 351-1669

Other identifiers

Identifier	Type	State	Issuer
GR0045151	Medicaid	CA	-
271955	Other	CA	BRENDA PATRICK, NP
ZZZ05207Z	Other	CA	BLUESHIELD
GR0045150	Medicaid	CA	-

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where is Chabot Nephrology Medical Group, Inc located?

The practice location on file with NPPES is in San Leandro, CA.

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2007-12-05. Verify at npiregistry.cms.hhs.gov.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-12-05.