Won K Yu MD Mph Inc
NPI 1538334289 · Gastroenterology Physician · Tustin, CA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Won K Yu MD Mph Inc is a Gastroenterology Physician organization in Tustin, CA (NPI 1538334289).
Provider details
- NPI number
- 1538334289
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Won Yu, Owner(714) 937-9400
- License
- A77275 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Won K Yu, MD, Mph Digestive Diseases
- Doing business as
- Won K Yu, MD, Mph Digestive Diseases
Registry dates
- Enumerated
- 2008-04-24
- Last updated
- 2023-08-04
- Certified
- 2023-08-04
Frequently asked questions
- What is Won K Yu MD Mph Inc's NPI number?
- Won K Yu MD Mph Inc's National Provider Identifier (NPI) is 1538334289, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Won K Yu MD Mph Inc?
- Won K Yu MD Mph Inc is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Won K Yu MD Mph Inc located?
- Won K Yu MD Mph Inc's practice location on file with NPPES is 17400 Irvine Blvd Ste F, Tustin, CA 92780-3030.
- What is Won K Yu MD Mph Inc's phone number?
- The practice phone number listed in the NPPES registry for Won K Yu MD Mph Inc is (714) 937-9400.
- Does Won K Yu MD Mph Inc accept Medicare?
- Won K Yu MD Mph Inc is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Won K Yu MD Mph Inc?
- The authorized official listed on Won K Yu MD Mph Inc's NPPES record is Won Yu, Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Won K Yu MD Mph Inc's NPI active?
- Yes — Won K Yu MD Mph Inc's NPI (1538334289) is active in the NPPES registry as of the last update on 2023-08-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.