Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Green, Stuart & Marinow, Harry & Bonfilio, Nicholas & Feiwell, Lawrenc

Orthopaedic Surgery Physician in Los Alamitos, CA · enumerated 2007 · authorized official Duke Ahn, Managing Partner.

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

National Provider Identifier

1275723629

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)

Legal business name Green, Stuart & Marinow, Harry & Bonfilio, Nicholas & Feiwell, Lawrenc

Other name <Unavail>

Practice address 3771 Katella Ave, Suite 310, Los Alamitos, CA, 90720

Phone (562) 430-3561

Fax (562) 431-8882

Enumeration date Jul 31, 2007

Last updated in NPPES Feb 1, 2013

Taxonomy & classification

207X00000X Orthopaedic Surgery Physician Allopathic & Osteopathic Physicians Primary

Authorized official

Name Duke Ahn

Title Managing Partner

Phone (562) 430-3561

Other identifiers

Identifier	Type	State	Issuer
GR0066741	Medicaid	CA	-
W13148A	Other	-	OTHER PTAN
W13148B	Other	-	PTAN
ZZZ53512Z	Other	CA	BLUE SHIELD PIN 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

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2013-02-01. Verify at npiregistry.cms.hhs.gov.

Where is Green, Stuart & Marinow, Harry & Bonfilio, Nicholas & Feiwell, Lawrenc located?

The practice location on file with NPPES is in Los Alamitos, CA.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-02-01.