Derek Du, FNP
NPI 1689886863 · Family Nurse Practitioner · Orange, CA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Derek Du, FNP is a Family Nurse Practitioner provider in Orange, CA (NPI 1689886863).
Provider details
- NPI number
- 1689886863
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP
- Sex
- Male
- Sole proprietor
- Yes
- License
- 22816 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Registry dates
- Enumerated
- 2007-05-03
- Last updated
- 2021-09-28
- Certified
- 2021-09-28
Frequently asked questions
- What is Derek Du's NPI number?
- Derek Du's National Provider Identifier (NPI) is 1689886863, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Derek Du's specialty?
- Derek Du is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Derek Du located?
- Derek Du's practice location on file with NPPES is 3340 E Chapman Ave, Orange, CA 92869.
- What is Derek Du's phone number?
- The practice phone number listed in the NPPES registry for Derek Du is (714) 912-1020.
- Does Derek Du accept Medicare?
- Derek Du is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Derek Du's NPI active?
- Yes — Derek Du's NPI (1689886863) is active in the NPPES registry as of the last update on 2021-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.