Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

California Kidney Medical Group Inc

Nephrology Physician in Thousand Oaks, CA · enumerated 2006 · authorized official Lily Krastein, Administrator.

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

National Provider Identifier

1083726871

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Registry record

Entity type Organization (Type 2)

Legal business name California Kidney Medical Group Inc

Practice address 227 W Janss Rd, Suite 110, Thousand Oaks, CA, 91360

Phone (805) 496-6051

Fax (805) 496-6785

Enumeration date Aug 31, 2006

Last updated in NPPES Jul 29, 2008

Taxonomy & classification

207RN0300X Nephrology Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Lily Krastein

Title Administrator

Phone (805) 433-7777

Other identifiers

Identifier	Type	State	Issuer
GR0087560	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.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is California Kidney Medical Group Inc?

California Kidney Medical Group Inc is registered in NPPES as a Nephrology Physician (its primary provider taxonomy).

What is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-29.