Robert Sean Doomun, D.O.

Family Medicine

(714) 790-8600Yorba Linda, CA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Robert Sean Doomun, D.O. practices as part of a group family medicine physician practice in Yorba Linda, CA. He has been practicing since 2006 — over 28 years. He regularly sees Medicare patients with high cholesterol, hypertension, and arthritis (per CMS claims data).

At a glance

  • Prescribes opioids less than 41% of reporting doctors in California
  • Virtual visits available — no app or travel required
1 of 4,025 Family Medicine providers in CASee all Family Medicine in Yorba Linda28+ years experienceNPI since 2006

Older · 1274dNPPES updated 2022-11-09 · verify on CMS

Contact & Location

Practice Location

18637 Yorba Linda Blvd, Yorba Linda, CA 92886-4136

CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor prescribes opioid pain medications conservatively.

Opioid Rx

↓ Lower = better

1.77%

California avg: 5.2 · US avg: 5.1

Higher than most doctors nationally(-3.3 pts)

Typical range among reporting doctors in California

1.77% of this doctor's prescriptions are opioid pain medications. Lower means more cautious prescribing.

Medicare Patients

216

Unique beneficiaries

Standard volume

Prescription Recipients

274

Patients prescribed

Prescriptions Written

2,146

Total claims

Total Medicare drug cost: $147k

Percentile rankings compared against 9,360 reporting peers in California.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.

High Cholesterol
Lower than avg (-7%)63%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↓ Fewer patients than average (-7%) — less common here

Hypertension
Lower than avg (-8%)62%

High blood pressure — a leading risk factor for heart disease and stroke

US avg: 70.2%

↓ Fewer patients than average (-8%) — less common here

Arthritis
Lower than avg (-2%)47%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↓ Fewer patients than average (-2%) — less common here

Cancer
Higher than avg (+1%)22%

Diseases involving abnormal cell growth with potential to spread to other body parts

US avg: 20.8%

↑ More patients than average (+1%) — a focus area for this doctor

Diabetes
Lower than avg (-14%)20%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↓ Fewer patients than average (-14%) — less common here

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Board certified · Nov 8, 2022

    CMS-verified certification date

  2. 28 years in practice

    Experienced

Family MedicineAllopathic & Osteopathic Physicians

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

Taxonomy: 207Q00000X

Practice Footprint

Mailing address

200 S Manchester Ave Ste 300, Orange, CA 92868-3219

Differs from practice location

Primary hospital affiliation: Psychiatric

CMS Certification Number: 194098

View hospital on Medicare Care Compare

Virtual Family Medicine Care With Robert Sean Doomun

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Robert Sean Doomun for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Yorba Linda required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Robert Sean Doomun

NPI records show Dr. Doomun as active with telehealth listed in Yorba Linda, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (714) 790-8600.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.

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Claim Profile

Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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