Dr. Sean Cao, MD
- Medicare services, 2024
- 110
- Medicare patients, 2024
- 79
- Part D claims, 2024
- 183
- Hospital affiliations
- 2
- Industry payments
- $1,586
- Practice address
- 9920 Talbert Avenue, Fountain Valley, CA 92708
- Practice phone
- Call (714) 378-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Cao's professional email, personal email and mobile number
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Dr. Sean Cao is a general surgeon in Fountain Valley, California
Dr. Cao practices at Orange Coast Medical Center in Fountain Valley, California, part of MemorialCare Health System.
Dr. Cao's NPI, 1558360966, was assigned on July 18, 2005. Dr. Cao graduated from State University of New York at Buffalo School of Medicine in 1990. Dr. Cao holds California license G73196.
- NPI
- 1558360966NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5597736850
- NPI enumeration date
- July 18, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 378-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 62
- Medical school graduation
- 1990
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sean Cao practices at Orange Coast Medical Center in Fountain Valley, California
Dr. Cao's primary practice is Orange Coast Medical Center, at 9920 Talbert Avenue, Fountain Valley, CA 92708 in Orange County. The practice phone is (714) 378-7000.
- Orange Coast Medical Center9920 Talbert Avenue, Fountain Valley, CA 92708 · Orange CountyPhone(714) 378-7000
Source: Dmand AI Affiliation Data
Dr. Sean Cao is affiliated with 3 sites of care
Dr. Cao's primary practice is Orange Coast Medical Center in Fountain Valley, California, part of MemorialCare Health System. Dr. Cao is also affiliated with UCI Health - Orange. Dmand AI also links Dr. Cao to 1 more physician office, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Sean Cao's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cao practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Orange Coast Medical Center | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sean Cao is one of 2,926 general surgeons in California
Surgery is Dr. Cao's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Cao is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
General surgeons near Dr. Cao
Counts of general surgeons 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. Sean Cao billed Medicare for 110 services in 2024
CMS data shows 110 Medicare services from Dr. Cao across 4 procedure codes in 2024, for 79 Medicare patients. Medicare paid $20,443 for them.
Dr. Cao's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1102024: 9216%
- Surgery
- 2023: 492024: 1863%
Where Dr. Cao's Medicare services took place, 2024
- In an office7064%
- In a facility4036%
Dr. Cao compared with the California median for general surgeons, 2024
- Dr. Cao
- California median
- Medicare services
- 110vs 16634% below
- Medicare patients
- 79vs 12135% below
- Part D claims
- 148vs 344.4 times
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Cao'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. Cao and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sean Cao treated 79 Medicare patients in 2024, average age 74
CMS counts 79 Medicare patients who saw Dr. Cao in 2024. The largest group is 65 to 74, with 36 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 76% are also on Medicaid. Their average risk score is 2.22, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Cao's median patient age at 68, with 50% women.
Dr. Cao's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Cao's Medicare patients by sex, 2024
- Women3241%
- Men4759%
Chronic conditions among Dr. Cao's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease53%
- Diabetes53%
- Ischemic heart disease42%
- Arthritis37%
- COPD30%
- Atrial fibrillation27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Cao's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women50%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sean Cao wrote 183 Medicare Part D claims in 2024
In 2024, Dr. Cao wrote 183 Medicare Part D claims for 87 patients. 98% of them were for generic drugs. CMS names the drug for 148 of them, across 3 drugs with 11 or more claims each, at $464 in total drug cost. In 2023, CMS named 185 claims across 3 drugs.
Dr. Cao's Part D claims by kind of drug, 2024
- Generic180 claims98%
- Brand-name and other3 claims2%
Dr. Cao'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. Cao's Part D claims, 2024
- Opioids53%97 of 183 claims
- Antibiotics15%28 of 183 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: 1852024: 14820%
Drugs named by CMS: 3 in 2024, 3 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
How Dr. Sean Cao takes part in Medicare
Dr. Cao accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Sean Cao received $1,586 in industry payments from 2016 to 2025
CMS Open Payments shows 9 general payments to Dr. Cao from 7 drug and device companies from 2016 to 2025. Travel and lodging make up the largest share, 67% of the total. Histosonics, Inc. paid the most, $1,282.
General payments to Dr. Cao by program year, 2016 to 2025
General payments to Dr. Cao by kind, 2016 to 2025
- Travel and lodging$1,05767%
- Food and beverage$52933%
Companies that paid Dr. Cao the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Sean Cao graduated from State University of New York at Buffalo School of Medicine
Dr. Cao graduated from State University of New York at Buffalo School of Medicine in 1990.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Sean Cao'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Sean Cao
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. Sean Cao's NPI number?
Dr. Sean Cao's NPI number is 1558360966. It was assigned on July 18, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Sean Cao?
Dr. Sean Cao is a general surgeon in Fountain Valley, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Sean Cao practice?
Dr. Cao practices at 9920 Talbert Avenue, Fountain Valley, CA 92708. Dr. Cao's primary practice is Orange Coast Medical Center in Fountain Valley, California, part of MemorialCare Health System. Dmand AI also links Dr. Cao to 1 physician office.
What is Dr. Sean Cao's office phone number?
The practice phone on file for Dr. Cao is (714) 378-7000.
What is Dr. Sean Cao's medical license number?
Dr. Cao holds California license G73196.
Which hospitals is Dr. Sean Cao affiliated with?
Dr. Cao practices at Orange Coast Medical Center in Fountain Valley, California. Dr. Cao is also affiliated with UCI Health - Orange.
Does Dr. Sean Cao accept Medicare?
Yes. CMS data shows Dr. Cao billed Medicare for 110 services in 2024, and Dr. Cao accepts Medicare assignment.
How many Medicare patients does Dr. Sean Cao see?
CMS counts 79 Medicare patients who saw Dr. Cao in 2024, with an average age of 74.
What services does Dr. Sean Cao bill to Medicare?
In 2024, Dr. Cao's most billed Medicare services were office visit, new patient (99205), office visit, established patient (99215) and hospital inpatient care (99223).
Where did Dr. Sean Cao go to medical school?
Dr. Cao graduated from State University of New York at Buffalo School of Medicine in 1990.
Show 3 more questionsShow fewer questions
What drugs does Dr. Sean Cao prescribe most?
In 2024 Medicare Part D data, Dr. Cao's most prescribed drugs by claims were Tramadol HCl, Pantoprazole Sodium and Amoxicillin-Clavulanate Potass.
Has Dr. Sean Cao received payments from drug or device companies?
CMS Open Payments shows $1,586 in general payments to Dr. Cao from 7 companies from 2016 to 2025. The largest total came from Histosonics, Inc.
How long has Dr. Sean Cao been practicing?
Dr. Cao graduated from medical school in 1990, 36 years ago.
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