Chao Sun
- Part D claims, 2024
- 17
- Industry payments
- $445
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2016
- Practice address
- 23600 El Toro Rd, Lake Forest, CA 92630
- Practice phone
- Call (800) 571-5202
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
National Vision, Inc.
Lake Forest, California
Find Chao 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.
Chao Sun is an optometrist in Lake Forest, California
Chao Sun practices at National Vision, Inc. in Lake Forest, California.
Chao Sun's NPI, 1043669062, was assigned on June 9, 2016. Chao Sun graduated from New England College of Optometry in 2016. Chao Sun holds Texas license 8979T.
- NPI
- 1043669062NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6709378409
- NPI enumeration date
- June 9, 2016
- NPI status
- Active
- Practice phone
- (800) 571-5202
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Chao Sun practices at National Vision, Inc. in Lake Forest, California
Chao Sun's primary practice is National Vision, Inc., at 23600 El Toro Rd, Lake Forest, CA 92630 in Orange County. The practice phone is (800) 571-5202.
- National Vision, Inc.23600 El Toro Rd, Lake Forest, CA 92630 · Orange CountyPhone(800) 571-5202
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Chao Sun is affiliated with 1 site of care and 2 medical groups
Chao Sun's primary practice is National Vision, Inc. in Lake Forest, California. The medical group on file is Access Community Health Center. Dmand AI also links Chao Sun to 1 more medical group, 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 Chao Sun's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Chao Sun practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| National Vision, Inc. | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Chao Sun is one of 7,206 optometrists in California
Optometrist is Chao Sun's primary specialty in the NPI Registry, under taxonomy code 152W00000X. Chao Sun is licensed in Texas.
Specialties and state licenses
- Optometrist, TexasPrimary
Optometrists near Chao Sun
Counts of optometrists 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
Chao Sun's patients have a median age of 73
Across all payers, Dmand AI patient panel data puts Chao Sun's median patient age at 73, with 56% women.
Chao 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 73
Patient panel by sex, all payers
- Women56%
- Men43%
Source: Dmand AI Patient Panel Data
Chao Sun wrote 17 Medicare Part D claims in 2024
In 2024, Chao Sun wrote 17 Medicare Part D claims.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Chao Sun received $445 in industry payments in 2025
CMS Open Payments shows 4 general payments to Chao Sun from 4 drug and device companies in 2025. Food and beverage make up the largest share, 100% of the total. New World Medical,inc. paid the most, $147.
Companies that paid Chao Sun the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Chao Sun graduated from New England College of Optometry
Chao Sun graduated from New England College of Optometry in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Chao 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 patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider (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 Chao 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 Chao Sun's NPI number?
Chao Sun's NPI number is 1043669062. It was assigned on June 9, 2016, and it is active in the NPI Registry.
What does Chao Sun specialize in?
Chao Sun is an optometrist in Lake Forest, California. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does Chao Sun practice?
Chao Sun practices at 23600 El Toro Rd, Lake Forest, CA 92630. Chao Sun's primary practice is National Vision, Inc. in Lake Forest, California. Dmand AI also links Chao Sun to 1 medical group.
What is Chao Sun's office phone number?
The practice phone on file for Chao Sun is (800) 571-5202.
What is Chao Sun's medical license number?
Chao Sun holds Texas license 8979T.
What medical group is Chao Sun part of?
Chao Sun is linked to Access Community Health Center. Dmand AI links Chao Sun to 1 more medical group.
Where did Chao Sun go to medical school?
Chao Sun graduated from New England College of Optometry in 2016.
Has Chao Sun received payments from drug or device companies?
CMS Open Payments shows $445 in general payments to Chao Sun from 4 companies from 2025 to 2025. The largest total came from New World Medical,inc.
How long has Chao Sun been practicing?
Chao Sun graduated from medical school in 2016, 10 years ago.
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