Dr. Kevin J. Chiang, MD
- Medicare services, 2024
- 434
- Medicare patients, 2024
- 233
- Part D claims, 2017
- 15
- Hospital affiliations
- 2
- Industry payments
- $13,676
- Practice address
- 27700 Medical Center Rd, Mission Viejo, CA 92691
- Practice phone
- Call (949) 365-2447
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mission Hospital - Unit
Acute Care Hospital-Unit · Mission Viejo, California
Find Dr. Chiang's professional email, personal email and mobile number
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Dr. Kevin J. Chiang is a general surgeon in Mission Viejo, California
Dr. Chiang practices at Mission Hospital - Unit in Mission Viejo, California.
Dr. Chiang's NPI, 1972866523, was assigned on June 19, 2012. Dr. Chiang graduated from University of Cincinnati College of Medicine in 2012. Dr. Chiang holds Massachusetts license 270867.
- NPI
- 1972866523NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8820343650
- NPI enumeration date
- June 19, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (949) 365-2447
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kevin J. Chiang practices at Mission Hospital - Unit in Mission Viejo, California
Dr. Chiang's primary practice is Mission Hospital - Unit, at 27700 Medical Center Rd, Mission Viejo, CA 92691 in Orange County. The practice phone is (949) 365-2447.
- Mission Hospital - Unit27700 Medical Center Rd, Mission Viejo, CA 92691 · Orange CountyPhone(949) 365-2447
Source: Dmand AI Affiliation Data
Dr. Kevin J. Chiang is affiliated with 2 sites of care and 1 medical group
Dr. Chiang's primary practice is Mission Hospital - Unit in Mission Viejo, California. Dr. Chiang is also affiliated with Providence Mission Hospital. The medical group on file is OC Surgeons, Saddleback Valley Surgical.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Kevin J. Chiang's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Chiang practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mission Hospital - Unit | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Kevin J. Chiang is one of 2,926 general surgeons in California
Surgery is Dr. Chiang's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Chiang is licensed in Massachusetts.
Specialties and state licenses
- Surgery, MassachusettsPrimary
General surgeons near Dr. Chiang
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. Kevin J. Chiang billed Medicare for 434 services in 2024
CMS data shows 434 Medicare services from Dr. Chiang across 10 procedure codes in 2024, for 233 Medicare patients. Medicare paid $46,859 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Chiang's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2482024: 32330%
- Imaging
- 2023: 02024: 83
- Tests and treatments
- 2023: 02024: 28
Dr. Chiang compared with the California median for general surgeons, 2024
- Dr. Chiang
- California median
- Medicare services
- 434vs 1662.6 times
- Medicare patients
- 233vs 12193% above
- Part D claims
- 15vs 3456% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. Chiang'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kevin J. Chiang treated 233 Medicare patients in 2024, average age 80
CMS counts 233 Medicare patients who saw Dr. Chiang in 2024. The largest group is 75 to 84, with 100 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 15% are also on Medicaid. Their average risk score is 2.04, 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. Chiang's median patient age at 59, with 42% women.
Dr. Chiang's Medicare patients by age, 2024
Dr. Chiang's Medicare patients by sex, 2024
- Women13658%
- Men9742%
Chronic conditions among Dr. Chiang's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis55%
- Atrial fibrillation48%
- Mood disorders42%
- Depression41%
- Ischemic heart disease40%
- Stroke or TIA38%
Share of Medicare patients with each condition. A patient can have several.
Dr. Chiang's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 59
Patient panel by sex, all payers
- Women42%
- Men58%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kevin J. Chiang wrote 15 Medicare Part D claims in 2017
In 2017, Dr. Chiang wrote 15 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $422 in total drug cost.
Dr. Chiang's most prescribed drugs by claims, 2017
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Kevin J. Chiang takes part in Medicare
Dr. Chiang accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Upper gastrointestinal (GI) endoscopy for acid reflux: 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. Kevin J. Chiang received $13,676 in industry payments from 2016 to 2025
CMS Open Payments shows 22 general payments to Dr. Chiang from 6 drug and device companies from 2016 to 2025. Education make up the largest share, 88% of the total. Intuitive Surgical, Inc. paid the most, $12,430.
General payments to Dr. Chiang by program year, 2016 to 2025
General payments to Dr. Chiang by kind, 2016 to 2025
- Education$12,00088%
- Travel and lodging$1,0868%
- Food and beverage$5894%
Companies that paid Dr. Chiang 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. Kevin J. Chiang graduated from University of Cincinnati College of Medicine
Dr. Chiang graduated from University of Cincinnati College of Medicine in 2012.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Kevin J. Chiang'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 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) |
| 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) |
| 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. Kevin J. Chiang
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. Kevin J. Chiang's NPI number?
Dr. Kevin J. Chiang's NPI number is 1972866523. It was assigned on June 19, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Kevin J. Chiang?
Dr. Kevin J. Chiang is a general surgeon in Mission Viejo, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Kevin J. Chiang practice?
Dr. Chiang practices at 27700 Medical Center Rd, Mission Viejo, CA 92691. Dr. Chiang's primary practice is Mission Hospital - Unit in Mission Viejo, California.
What is Dr. Kevin J. Chiang's office phone number?
The practice phone on file for Dr. Chiang is (949) 365-2447.
What is Dr. Kevin J. Chiang's medical license number?
Dr. Chiang holds Massachusetts license 270867.
Which hospitals is Dr. Kevin J. Chiang affiliated with?
Dr. Chiang is affiliated with Providence Mission Hospital. Dmand AI links Dr. Chiang to 1 more hospital.
What medical group is Dr. Kevin J. Chiang part of?
Dr. Chiang is linked to OC Surgeons, Saddleback Valley Surgical.
Does Dr. Kevin J. Chiang accept Medicare?
Yes. CMS data shows Dr. Chiang billed Medicare for 434 services in 2024, and Dr. Chiang accepts Medicare assignment.
How many Medicare patients does Dr. Kevin J. Chiang see?
CMS counts 233 Medicare patients who saw Dr. Chiang in 2024, with an average age of 80.
What services does Dr. Kevin J. Chiang bill to Medicare?
In 2024, Dr. Chiang's most billed Medicare services were critical care (99291), hospital inpatient care (99232) and emergency department visit (99285).
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Where did Dr. Kevin J. Chiang go to medical school?
Dr. Chiang graduated from University of Cincinnati College of Medicine in 2012.
What drugs does Dr. Kevin J. Chiang prescribe most?
In 2017 Medicare Part D data, Dr. Chiang's most prescribed drugs by claims were Pantoprazole Sodium.
Has Dr. Kevin J. Chiang received payments from drug or device companies?
CMS Open Payments shows $13,676 in general payments to Dr. Chiang from 6 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Kevin J. Chiang been practicing?
Dr. Chiang graduated from medical school in 2012, 14 years ago.
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