Dr. Yeo Won Ahn, MD
- Hospital affiliations
- 1
- Industry payments
- $19
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2021
- Practice address
- 225 E Chicago Ave, Chicago, IL 60611
- Practice phone
- Call (312) 227-7118
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ann & Robert H. Lurie Children's Hospital of Chicago
Chicago, Illinois
Find Dr. Ahn'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. Yeo Won Ahn is a pediatrician in Chicago, Illinois
Dr. Ahn practices at Ann & Robert H. Lurie Children's Hospital of Chicago in Chicago, Illinois.
Dr. Ahn's NPI, 1255912481, was assigned on April 19, 2021. Dr. Ahn holds Illinois license 125077982.
- NPI
- 1255912481NPI Registry (opens in a new tab)
- NPI enumeration date
- April 19, 2021
- NPI status
- Active
- Practice phone
- (312) 227-7118
- 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 Practice Data
Dr. Yeo Won Ahn practices at Ann & Robert H. Lurie Children's Hospital of Chicago in Chicago, Illinois
Dr. Ahn's primary practice is Ann & Robert H. Lurie Children's Hospital of Chicago, at 225 E Chicago Ave, Chicago, IL 60611 in Cook County. The practice phone is (312) 227-7118.
- Ann & Robert H. Lurie Children's Hospital of Chicago225 E Chicago Ave, Chicago, IL 60611 · Cook CountyPhone(312) 227-7118
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Yeo Won Ahn is affiliated with 2 sites of care and 1 medical group
Dr. Ahn's primary practice is Ann & Robert H. Lurie Children's Hospital of Chicago in Chicago, Illinois. Dr. Ahn is also affiliated with University of Chicago Medical Center. The medical group on file is Lurie Children's Medical Group.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Yeo Won Ahn's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ahn practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ann & Robert H. Lurie Children's Hospital of Chicago | 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. Yeo Won Ahn is one of 2,423 pediatricians in Illinois
Pediatrics is Dr. Ahn's primary specialty in the NPI Registry, under taxonomy code 208000000X. Dr. Ahn is licensed in Illinois.
Specialties and state licenses
- Pediatrics, IllinoisPrimary
Pediatricians near Dr. Ahn
Counts of pediatricians 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. Yeo Won Ahn's patients have a median age of 5
Across all payers, Dmand AI patient panel data puts Dr. Ahn's median patient age at 5, with 36% women.
Dr. Ahn's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 5
Patient panel by sex, all payers
- Women36%
- Men64%
Source: Dmand AI Patient Panel Data
Dr. Yeo Won Ahn received $19 in industry payments in 2022
CMS Open Payments shows 1 general payment to Dr. Ahn from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Organon LLC paid the most, $19.
Companies that paid Dr. Ahn the most, 2022 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Yeo Won Ahn'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 DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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. Yeo Won Ahn
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. Yeo Won Ahn's NPI number?
Dr. Yeo Won Ahn's NPI number is 1255912481. It was assigned on April 19, 2021, and it is active in the NPI Registry.
What kind of doctor is Dr. Yeo Won Ahn?
Dr. Yeo Won Ahn is a pediatrician in Chicago, Illinois. The primary specialty in the NPI Registry is Pediatrics Physician (taxonomy code 208000000X).
Where does Dr. Yeo Won Ahn practice?
Dr. Ahn practices at 225 E Chicago Ave, Chicago, IL 60611. Dr. Ahn's primary practice is Ann & Robert H. Lurie Children's Hospital of Chicago in Chicago, Illinois.
What is Dr. Yeo Won Ahn's office phone number?
The practice phone on file for Dr. Ahn is (312) 227-7118.
What is Dr. Yeo Won Ahn's medical license number?
Dr. Ahn holds Illinois license 125077982.
Which hospitals is Dr. Yeo Won Ahn affiliated with?
Dr. Ahn is affiliated with University of Chicago Medical Center.
What medical group is Dr. Yeo Won Ahn part of?
Dr. Ahn is linked to Lurie Children's Medical Group.
Has Dr. Yeo Won Ahn received payments from drug or device companies?
CMS Open Payments shows $19 in general payments to Dr. Ahn from 1 company from 2022 to 2022. The largest total came from Organon LLC.
How long has Dr. Yeo Won Ahn been practicing?
Dr. Ahn's NPI was assigned in 2021.
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