Dr. Ziyi Sun, DO
- Part D claims, 2024
- 20
- Hospital affiliations
- 1
- Industry payments
- $158
- State license
- 1
- Year NPI issued
- 2024
- Practice address
- 1901 W Harrison St, Chicago, IL 60612
- Practice phone
- Call (312) 864-6000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. Ziyi Sun is a general surgeon in Chicago, Illinois
Dr. Sun practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
Dr. Sun's NPI, 1780427575, was assigned on June 18, 2024. Dr. Sun holds Illinois license 125.083487.
- NPI
- 1780427575NPI Registry (opens in a new tab)
- NPI enumeration date
- June 18, 2024
- NPI status
- Active
- Practice phone
- (312) 864-6000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Ziyi Sun practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois
Dr. Sun's primary practice is John H. Stroger, Jr. Hospital of Cook County, at 1901 W Harrison St, Chicago, IL 60612 in Cook County. The practice phone is (312) 864-6000.
- John H. Stroger, Jr. Hospital of Cook County1901 W Harrison St, Chicago, IL 60612 · Cook CountyPhone(312) 864-6000
Source: Dmand AI Affiliation Data
Dr. Ziyi Sun is affiliated with 1 site of care
Dr. Sun's primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ziyi 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 |
|---|---|
| John H. Stroger, Jr. Hospital of Cook County | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ziyi Sun is one of 1,217 general surgeons in Illinois
Surgery is Dr. Sun's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Sun is licensed in Illinois.
Specialties and state licenses
- Surgery, IllinoisPrimary
General surgeons near Dr. Sun
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. Ziyi 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 63% 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
- Women63%
- Men38%
Source: Dmand AI Patient Panel Data
Dr. Ziyi Sun wrote 20 Medicare Part D claims in 2024
In 2024, Dr. Sun wrote 20 Medicare Part D claims for 15 patients. 100% of them were for generic drugs.
Drug classes CMS tracks in Dr. Sun's Part D claims, 2024
- Opioids65%13 of 20 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Dr. Ziyi Sun received $158 in industry payments from 2024 to 2025
CMS Open Payments shows 2 general payments to Dr. Sun from 2 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Kerecis Limited paid the most, $94.
General payments to Dr. Sun by program year, 2024 to 2025
Companies that paid Dr. Sun the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ziyi 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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy 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) |
| 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. Ziyi 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. Ziyi Sun's NPI number?
Dr. Ziyi Sun's NPI number is 1780427575. It was assigned on June 18, 2024, and it is active in the NPI Registry.
What kind of doctor is Dr. Ziyi Sun?
Dr. Ziyi Sun is a general surgeon in Chicago, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Ziyi Sun practice?
Dr. Sun practices at 1901 W Harrison St, Chicago, IL 60612. Dr. Sun's primary practice is John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois, part of Cook County Government.
What is Dr. Ziyi Sun's office phone number?
The practice phone on file for Dr. Sun is (312) 864-6000.
What is Dr. Ziyi Sun's medical license number?
Dr. Sun holds Illinois license 125.083487.
Which hospitals is Dr. Ziyi Sun affiliated with?
Dr. Sun practices at John H. Stroger, Jr. Hospital of Cook County in Chicago, Illinois.
Has Dr. Ziyi Sun received payments from drug or device companies?
CMS Open Payments shows $158 in general payments to Dr. Sun from 2 companies from 2024 to 2025. The largest total came from Kerecis Limited.
How long has Dr. Ziyi Sun been practicing?
Dr. Sun's NPI was assigned in 2024.
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