WON H OH PA-C
NPI 1053899138
Physician Assistant in Chicago, IL
About Won H Oh Pa-c NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
WON H OH PA-C (NPI 1053899138) is an individual physician assistant in Chicago, Illinois, licensed in Illinois (085006591) and active in the NPI registry since August 2018. She is enrolled in Medicare PECOS, is affiliated with The University Of Chicago Medical Center, and is a graduate of Other (2018).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Won H Oh Pa-c is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
The University Of Chicago Medical Center
Acute Care Hospitals · Chicago, ILNorthwestern Memorial Hospital
Acute Care Hospitals · Chicago, ILPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 60611 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Won Oh's NPI number?
The NPI number for Won Oh is 1053899138. It was assigned to this individual provider in the NPPES registry on August 1, 2018.
Where is Won Oh located?
Won Oh practices at 259 E Erie St Ste 300, Chicago, IL 60611. The listed phone number is (312) 926-4566.
What is Won Oh's specialty?
The primary specialty registered for this NPI is Physician Assistant with taxonomy code 363A00000X.
Is Won Oh enrolled in Medicare?
Yes. Won Oh is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Is Won Oh affiliated with any hospitals?
According to CMS data, Won Oh is affiliated with The University Of Chicago Medical Center and Northwestern Memorial Hospital.
When was this NPI record last updated?
The NPPES record for Won Oh was last updated on February 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Won H Oh, PA-C · NPI 1053899138
Physician Assistant physician in Chicago, Illinois. Individual provider, active in the CMS NPPES registry since August 1, 2018.
## Identity
- **NPI:** 1053899138 (Entity type: Individual)
- **Enumerated:** August 1, 2018
- **Primary specialty:** Physician Assistant · taxonomy 363A00000X
- **State license:** 085006591 (Illinois)
- **Sole proprietor:** No
## Practice location
- **Address:** 259 E ERIE ST STE 300, Chicago, IL 60611-2988
- **Phone:** (312) 926-4566 · **Fax:** (312) 926-6511
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2018
## Record status
- **NPPES last updated:** February 27, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1053899138) · Data from the CMS NPPES public registry.