Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Marjun Philip Narciso Duldulao III, M.D.

Colon & Rectal Surgery Physician in Los Angeles, CA · enumerated 2008.

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

National Provider Identifier

1063684850

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Registry record

Entity type Individual (Type 1)

Name Dr. Marjun Philip Narciso Duldulao III

Credential M.D.

Sex Male

Practice address 1450 San Pablo Street Suite 6200, Los Angeles, CA, 90089

Phone (323) 865-3690

Enumeration date Apr 1, 2008

Last updated in NPPES Nov 27, 2023

Taxonomy & licenses

208C00000X Colon & Rectal Surgery Physician Allopathic & Osteopathic Physicians · License A109414 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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 do I verify Marjun Duldulao's NPI record?

Cross-check NPI 1063684850 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1063684850 active?

Yes, as of the latest NPPES snapshot, NPI 1063684850 is active (record last updated 2023-11-27).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-27.