Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Dr. Robert Sean Doomun, DO

Individual provider Family Medicine Physician · NPI 1043221898

Dr. Robert Sean Doomun, DO is registered under Family Practice in Yorba Linda, California. Qualified in 1998, 28 years ago. Practices with Regents of the University of California, a 61-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
28
Licensed in
CA
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

18637 Yorba Linda Blvd
Yorba Linda, CA 92886-4136
Phone: (714) 790-8600
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 19871 Yorba Linda Blvd, Yorba Linda, CA 92886-2811 — (714) 777-3606

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 20A7459 (CA)

Record details

NPI number1043221898
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedAugust 10, 2006
Last updated in NPPESNovember 9, 2022
Certification dateNovember 9, 2022

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolOTHER
Graduated 1998 (28 years in practice)
Group practice Regents Of The University Of California — 61 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients248
Services billed 596 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Uci Health-Orange Hospital · Orange, CA
  • Hollywood Home Health Services Home health agency · N Hollywood, CA

Colleagues at Regents of the University of California

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 61 clinicians in the practice; 12 are shown here.

Other providers in Yorba Linda