Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Robert Sean Doomun, D.O.

Family Medicine Physician in Yorba Linda, CA · enumerated 2006 · practices at Birth Choice Pregnancy Centers, Inc.

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

National Provider Identifier

1043221898

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Registry record

Entity type Individual (Type 1)

Name Dr. Robert Sean Doomun

Credential D.O.

Sex Male

Practice address 18637 Yorba Linda Blvd, Yorba Linda, CA, 92886

Phone (714) 790-8600

Enumeration date Aug 10, 2006

Last updated in NPPES Nov 9, 2022

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 20A7459 (CA) Primary

DO · Doctor of Osteopathic Medicine: A fully licensed physician trained in osteopathic medical schools, with the same practice rights as an MD. About the DO credential

Other identifiers

Identifier	Type	State	Issuer
W19749	Other	-	PIN

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.

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Frequently asked questions

How do I verify Robert Doomun's NPI record?

Cross-check NPI 1043221898 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1043221898 active?

Yes, as of the latest NPPES snapshot, NPI 1043221898 is active (record last updated 2022-11-09).

Other providers at this practice address

Browse all →

Roxann Engle Family Medicine Physician · Yorba Linda, CA NPI 1710981303 Menezha Rahimi Family Medicine Physician · Yorba Linda, CA NPI 1568403731 Richard Mcmillan Marriage & Family Therapist · Yorba Linda, CA NPI 1487722153 Birth Choice Pregnancy Centers, Inc Community Health Clinic/Center · Yorba Lilnda, CA NPI 1386938298 Matthew Keating Hematology & Oncology Physician · Yorba Linda, CA NPI 1275948481 Hoda Mojazi Amiri Endocrinology, Diabetes & Metabolism Physician · Yorba Linda, CA NPI 1750780367 Edelaine Lucas Nurse Practitioner · Yorba Linda, CA NPI 1740772896

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-11-09.