DR. ROY PILLSUB WON M.D.
NPI 1225470354
Colon & Rectal Surgery in Fullerton, CA
About Dr. Roy Pillsub Won M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROY PILLSUB WON M.D. (NPI 1225470354) is an individual colon & rectal surgery provider in Fullerton, California, licensed in California (A134883) and active in the NPI registry since July 2013. He is enrolled in Medicare PECOS and is a graduate of University Of Cincinnati College Of Medicine (2013).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Dr. Roy Pillsub Won M.d. 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92835 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 9
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Roy Won's NPI number?
The NPI number for Roy Won is 1225470354. It was assigned to this individual provider in the NPPES registry on July 17, 2013.
Where is Roy Won located?
Roy Won practices at 1950 Sunny Crest Dr Ste 3500, Fullerton, CA 92835. The listed phone number is (714) 408-4249.
What is Roy Won's specialty?
The primary specialty registered for this NPI is Colon & Rectal Surgery with taxonomy code 208C00000X.
Is Roy Won enrolled in Medicare?
Yes. Roy Won 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.
When was this NPI record last updated?
The NPPES record for Roy Won was last updated on August 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Dr. Roy Pillsub Won, M.D. · NPI 1225470354
Colon & Rectal Surgery physician in Fullerton, California. Individual provider, active in the CMS NPPES registry since July 17, 2013.
## Identity
- **NPI:** 1225470354 (Entity type: Individual)
- **Enumerated:** July 17, 2013
- **Primary specialty:** Colon & Rectal Surgery · taxonomy 208C00000X
- **State license:** A134883 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1950 SUNNY CREST DR STE 3500, Fullerton, CA 92835-3646
- **Phone:** (714) 408-4249 · **Fax:** (714) 525-0123
## 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:** University Of Cincinnati College Of Medicine, class of 2013
## Record status
- **NPPES last updated:** August 25, 2025
- **Other identifiers:** Medicaid 415263901 (TX); Medicaid 415263903 (TX); Medicaid 415263902 (TX)
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Source: [NPI Profile](https://npiprofile.com/npi/1225470354) · Data from the CMS NPPES public registry.