Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Hollenberg Agrawal Knoll Warren Hong Fung Tillis Kaushal Mds

Pediatrics Physician in Pomona, CA · enumerated 2005 · authorized official Jim Hollenberg, Staff/It.

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

National Provider Identifier

1366447781

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Hollenberg Agrawal Knoll Warren Hong Fung Tillis Kaushal Mds

Other name <Unavail>

Practice address 250 W Bonita Ave, #200, Pomona, CA, 91767

Phone (909) 620-1935

Fax (909) 865-7688

Enumeration date Jun 14, 2005

Last updated in NPPES Jul 30, 2014

Taxonomy & classification

208000000X Pediatrics Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Jim Hollenberg

Title Staff/It

Phone (909) 620-1935

Other identifiers

Identifier	Type	State	Issuer
GR0066720	Other	CA	MEDI CAL GROUP NUMBER

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 Hollenberg Agrawal Knoll Warren Hong Fung Tillis Kaushal Mds?

Hollenberg Agrawal Knoll Warren Hong Fung Tillis Kaushal Mds is registered in NPPES as a Pediatrics 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.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-30.