Dr. Chao-Huang Sun, MD, MPH
- Medicare services, 2022
- 41
- Part D claims, 2024
- 13
- Industry payments
- $2,503
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 3660 Park Sierra Dr, Riverside, CA 92505
- Practice phone
- Call (951) 278-8870
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Mission Surgical Group
Riverside, California
Find Dr. Sun'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. Chao-Huang Sun is a nephrologist in Riverside, California
Dr. Sun practices at Mission Surgical Group in Riverside, California.
Dr. Sun's NPI, 1134174493, was assigned on May 24, 2006. Dr. Sun graduated from Kaohsiung Medical College in 1979. Dr. Sun holds California license A40997.
- NPI
- 1134174493NPI Registry (opens in a new tab)
- NPI enumeration date
- May 24, 2006
- NPI status
- Active
- Practice phone
- (951) 278-8870
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Chao-Huang Sun practices at Mission Surgical Group in Riverside, California
Dr. Sun's primary practice is Mission Surgical Group, at 3660 Park Sierra Dr, Riverside, CA 92505 in Riverside County. The practice phone is (951) 278-8870.
- Mission Surgical Group3660 Park Sierra Dr, Riverside, CA 92505 · Riverside CountyPhone(951) 278-8870
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Chao-Huang Sun is affiliated with 2 sites of care and 1 medical group
Dr. Sun's primary practice is Mission Surgical Group in Riverside, California. The medical group on file is Nephrology Associates Medical Group. Dmand AI also links Dr. Sun to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Chao-Huang Sun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sun practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Mission Surgical Group | 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. Chao-Huang Sun is one of 1,401 nephrologists in California
Nephrology is Dr. Sun's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Sun is board certified in internal medicine by the American Board of Internal Medicine. Dr. Sun is licensed in California.
Specialties and state licenses
- Nephrology, CaliforniaPrimary
Nephrologists near Dr. Sun
Counts of nephrologists 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. Chao-Huang Sun billed Medicare for 41 services in 2022
CMS data shows 41 Medicare services from Dr. Sun across 2 procedure codes in 2022. Medicare paid $3,339 for them. Every service was in an office.
Dr. Sun's Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 4342022: 2794%
- Tests and treatments
- 2021: 1932022: 1493%
Dr. Sun compared with the California median for nephrologists, 2022
- Dr. Sun
- California median
- Medicare services
- 41vs 1,08496% below
- Part D claims
- 397vs 95558% below
Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.
Dr. Sun's most billed Medicare procedure codes, 2022
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. Sun and other nephrologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chao-Huang Sun's patients have a median age of 59
Across all payers, Dmand AI patient panel data puts Dr. Sun's median patient age at 59, with 33% women.
Dr. Sun'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
- Women33%
- Men67%
Source: Dmand AI Patient Panel Data
Dr. Chao-Huang Sun wrote 13 Medicare Part D claims in 2024
In 2024, Dr. Sun wrote 13 Medicare Part D claims. 100% of them were for generic drugs. They cover 18 drugs, with $84,241 in total drug cost. In 2021, CMS named 1,224 claims across 39 drugs.
Dr. Sun's most prescribed drugs by claims, 2022
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2021 to 2022
- 2021
- 2022
- Claims for drugs CMS names
- 2021: 1,2242022: 39768%
Drugs named by CMS: 18 in 2022, 39 in 2021.
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
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Dr. Chao-Huang Sun received $2,503 in industry payments from 2016 to 2022
CMS Open Payments shows 55 general payments to Dr. Sun from 17 drug and device companies from 2016 to 2022. Food and beverage make up the largest share, 64% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,289.
General payments to Dr. Sun by program year, 2016 to 2022
General payments to Dr. Sun by kind, 2016 to 2022
- Food and beverage$1,59864%
- Travel and lodging$88835%
- Education$171%
Companies that paid Dr. Sun the most, 2016 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Chao-Huang Sun has 2 awards and honors on record
Dmand AI lists 2 awards for Dr. Sun, most recently Checkbook Top Doc in 2012.
Awards and honors for Dr. Sun
- 2012
- Checkbook Top Doc
- Undated
- CMS Stage 1 2012
Source: Dmand AI Professional Profile Data
Dr. Chao-Huang Sun graduated from Kaohsiung Medical College
Dr. Sun graduated from Kaohsiung Medical College in 1979.
- Medical school
- Board certified in internal medicine
- Board certified in nephrology
Source: Dmand AI Professional Profile Data
Dr. Chao-Huang Sun accepts plans from 6 insurance carriers
Dr. Sun is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and Elevance. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- Elevance
- HCSC
- Regence Health Plans
- Molina
Plan types Dr. Sun accepts, by number of carriers
- Medicare6
- PPO5
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Chao-Huang Sun'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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 Data |
| 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| 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. Chao-Huang Sun
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. Chao-Huang Sun's NPI number?
Dr. Chao-Huang Sun's NPI number is 1134174493. It was assigned on May 24, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Chao-Huang Sun?
Dr. Chao-Huang Sun is a nephrologist in Riverside, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).
Where does Dr. Chao-Huang Sun practice?
Dr. Sun practices at 3660 Park Sierra Dr, Riverside, CA 92505. Dr. Sun's primary practice is Mission Surgical Group in Riverside, California. Dmand AI also links Dr. Sun to 1 group practice or clinic.
What is Dr. Chao-Huang Sun's office phone number?
The practice phone on file for Dr. Sun is (951) 278-8870.
What is Dr. Chao-Huang Sun's medical license number?
Dr. Sun holds California license A40997.
What medical group is Dr. Chao-Huang Sun part of?
Dr. Sun is linked to Nephrology Associates Medical Group.
Does Dr. Chao-Huang Sun accept Medicare?
Yes. CMS data shows Dr. Sun billed Medicare for 41 services in 2022.
Is Dr. Chao-Huang Sun board certified?
Yes. Dr. Sun is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Chao-Huang Sun bill to Medicare?
In 2022, Dr. Sun's most billed Medicare services were care management and other visits (99442) and dialysis (90960).
Where did Dr. Chao-Huang Sun go to medical school?
Dr. Sun graduated from Kaohsiung Medical College in 1979.
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What drugs does Dr. Chao-Huang Sun prescribe most?
In 2022 Medicare Part D data, Dr. Sun's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Calcitriol.
Has Dr. Chao-Huang Sun received payments from drug or device companies?
CMS Open Payments shows $2,503 in general payments to Dr. Sun from 17 companies from 2016 to 2022. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Chao-Huang Sun been practicing?
Dr. Sun graduated from medical school in 1979, 47 years ago.
What insurance does Dr. Chao-Huang Sun accept?
Dr. Sun is in network with 6 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and Elevance. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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