NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Gregory C Di Rocco, M.D., Inc.

Specialist in Newport Beach, CA · enumerated 2007 · authorized official Ava Bullock, Billing Manager.

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

National Provider Identifier

1184756819

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Gregory C Di Rocco, M.D., Inc.
Practice address 320 Superior Ave, 230, Newport Beach, CA, 92663
Fax (949) 631-1178
Enumeration date Mar 9, 2007
Last updated in NPPES Dec 27, 2011

Taxonomy & classification

174400000X Specialist Other Service Providers · License 00G449510 (CA) Primary

Authorized official

Name Ava Bullock
Title Billing Manager

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

Who is the authorized official for Gregory C Di Rocco, M.D., Inc.?
NPPES lists Ava Bullock (Billing Manager) as the authorized official for this organization.
What is the NPI number for Gregory C Di Rocco, M.D., Inc.?
The NPI for Gregory C Di Rocco, M.D., Inc. is 1184756819, a Type 2 (organization) record in the CMS NPPES registry.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-12-27.