Dr. Robert Sean Doomun, DO
- Medicare services, 2024
- 565
- Medicare patients, 2024
- 248
- Part D claims, 2024
- 2,662
- Hospital affiliations
- 1
- Medical groups
- 3
- Practice address
- 101 City Drive South, Orange, CA 92868
- Practice phone
- Call (714) 456-7890
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Doomun's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Robert Sean Doomun is a family medicine physician in Orange, California
Dr. Doomun practices at UCI Health - Orange in Orange, California, part of UC Irvine.
Dr. Doomun's NPI, 1043221898, was assigned on August 10, 2006. Dr. Doomun graduated from WesternU College of Osteopathic Medicine of the Pacific in 1998. Dr. Doomun holds California license 20A7459.
- NPI
- 1043221898NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3870502297
- NPI enumeration date
- August 10, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (714) 456-7890
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 54
- Medical school graduation
- 1998
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Robert Sean Doomun practices at UCI Health - Orange in Orange, California
Dr. Doomun's primary practice is UCI Health - Orange, at 101 City Drive South, Orange, CA 92868 in Orange County. The practice phone is (714) 456-7890.
- UCI Health - Orange101 City Drive South, Orange, CA 92868 · Orange CountyPhone(714) 456-7890
Source: Dmand AI Affiliation Data
Dr. Robert Sean Doomun is affiliated with 6 sites of care and 3 medical groups
Dr. Doomun's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. The medical group on file is MemorialCare Medical Group. Dmand AI also links Dr. Doomun to 3 more group practices and clinics, 2 medical groups, 1 physician office and 1 home health agency, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Robert Sean Doomun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Doomun practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| UCI Health - Orange | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Robert Sean Doomun is one of 15,680 family medicine physicians in California
Family medicine is Dr. Doomun's primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dr. Doomun is board certified in family practice and osteopathic manipulative medicine by the AOA Board of Family Physicians. Dr. Doomun is licensed in California.
Specialties and state licenses
- Family medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acid reflux, acute skin infection, aneurysm, aortic atherosclerois, arteritis, asthma, atrial fibrillation and flutter and chronic diabetes among the conditions Dr. Doomun treats.
Family medicine physicians near Dr. Doomun
Counts of family medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Robert Sean Doomun billed Medicare for 565 services in 2024
CMS data shows 565 Medicare services from Dr. Doomun across 7 procedure codes in 2024, for 248 Medicare patients. Medicare paid $38,860 for them. Every service was in an office.
Dr. Doomun's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 4192024: 50521%
- Other services
- 2023: 182024: 46156%
- Tests and treatments
- 2023: 182024: 1422%
Dr. Doomun compared with the California median for family medicine physicians, 2024
- Dr. Doomun
- California median
- Medicare services
- 565vs 2462.3 times
- Medicare patients
- 248vs 1182.1 times
- Part D claims
- 2,238vs 8332.7 times
Medians across 15,349 family medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Doomun's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Doomun and other family medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert Sean Doomun treated 248 Medicare patients in 2024, average age 73
CMS counts 248 Medicare patients who saw Dr. Doomun in 2024. The largest group is 65 to 74, with 138 patients. 70% of them have high cholesterol, and 67% have high blood pressure. 9% are also on Medicaid. Their average risk score is 1.17, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Doomun's median patient age at 56, with 38% women.
Dr. Doomun's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Doomun's Medicare patients by sex, 2024
- Women9739%
- Men15161%
Chronic conditions among Dr. Doomun's Medicare patients, 2024
- High cholesterol70%
- High blood pressure67%
- Arthritis49%
- Cancer23%
- Chronic kidney disease21%
- Diabetes21%
- Ischemic heart disease19%
- Mood disorders19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Doomun's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 56
Patient panel by sex, all payers
- Women38%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Robert Sean Doomun wrote 2,662 Medicare Part D claims in 2024
In 2024, Dr. Doomun wrote 2,662 Medicare Part D claims for 333 patients. 92% of them were for generic drugs. CMS names the drug for 2,238 of them, across 68 drugs with 11 or more claims each, at $69,931 in total drug cost. In 2023, CMS named 1,686 claims across 54 drugs.
Dr. Doomun's Part D claims by kind of drug, 2024
- Generic2,453 claims92%
- Brand-name and other209 claims8%
Dr. Doomun's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Doomun's Part D claims, 2024
- Opioids2%66 of 2,662 claims
- Antibiotics2%59 of 2,662 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1,6862024: 2,23833%
Drugs named by CMS: 68 in 2024, 54 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Robert Sean Doomun offers telehealth to Medicare patients
Dr. Doomun accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Doomun as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Robert Sean Doomun graduated from WesternU College of Osteopathic Medicine of the Pacific
Dr. Doomun graduated from WesternU College of Osteopathic Medicine of the Pacific in 1998. Dr. Doomun is a member of AOA.
- Medical school
- Board certified in family practice and osteopathic manipulative medicine
Source: Dmand AI Professional Profile Data
Dr. Robert Sean Doomun accepts plans from 11 insurance carriers
Dr. Doomun is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- HCSC
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- Alliant Health Plans
- +3 more carriersWith a free account
Plan types Dr. Doomun accepts, by number of carriers
- Medicare8
- PPO7
- HMO6
- POS5
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Robert Sean Doomun's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Robert Sean Doomun
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Robert Sean Doomun's NPI number?
Dr. Robert Sean Doomun's NPI number is 1043221898. It was assigned on August 10, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert Sean Doomun?
Dr. Robert Sean Doomun is a family medicine physician in Orange, California. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Robert Sean Doomun practice?
Dr. Doomun practices at 101 City Drive South, Orange, CA 92868. Dr. Doomun's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. Dmand AI also links Dr. Doomun to 3 group practices and clinics, 2 medical groups, 1 physician office and 1 home health agency.
What is Dr. Robert Sean Doomun's office phone number?
The practice phone on file for Dr. Doomun is (714) 456-7890.
What is Dr. Robert Sean Doomun's medical license number?
Dr. Doomun holds California license 20A7459.
Which hospitals is Dr. Robert Sean Doomun affiliated with?
Dr. Doomun practices at UCI Health - Orange in Orange, California.
What medical group is Dr. Robert Sean Doomun part of?
Dr. Doomun is linked to MemorialCare Medical Group. Dmand AI links Dr. Doomun to 2 more medical groups.
Does Dr. Robert Sean Doomun accept Medicare?
Yes. CMS data shows Dr. Doomun billed Medicare for 565 services in 2024, and Dr. Doomun accepts Medicare assignment.
Does Dr. Robert Sean Doomun offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Doomun as offering telehealth services.
How many Medicare patients does Dr. Robert Sean Doomun see?
CMS counts 248 Medicare patients who saw Dr. Doomun in 2024, with an average age of 73.
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Is Dr. Robert Sean Doomun board certified?
Yes. Dr. Doomun is board certified in family practice and osteopathic manipulative medicine by the AOA Board of Family Physicians.
What services does Dr. Robert Sean Doomun bill to Medicare?
In 2024, Dr. Doomun's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, established patient (99215).
Where did Dr. Robert Sean Doomun go to medical school?
Dr. Doomun graduated from WesternU College of Osteopathic Medicine of the Pacific in 1998.
What drugs does Dr. Robert Sean Doomun prescribe most?
In 2024 Medicare Part D data, Dr. Doomun's most prescribed drugs by claims were Atorvastatin Calcium, Levothyroxine Sodium and Amlodipine Besylate.
How long has Dr. Robert Sean Doomun been practicing?
Dr. Doomun graduated from medical school in 1998, 28 years ago.
What insurance does Dr. Robert Sean Doomun accept?
Dr. Doomun is in network with 11 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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