Crystal Du
NPI 1275429417 · Acute Care Nurse Practitioner · Glendora, CA
Crystal Du is a Acute Care Nurse Practitioner provider in Glendora, CA (NPI 1275429417).
Provider details
- NPI number
- 1275429417
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 95034551 (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
1 yr 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
- 2025-06-16
- Last updated
- 2025-06-16
- Certified
- 2025-06-16
Frequently asked questions
- What is Crystal Du's NPI number?
- Crystal Du's National Provider Identifier (NPI) is 1275429417, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Crystal Du's specialty?
- Crystal Du is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Crystal Du located?
- Crystal Du's practice location on file with NPPES is 1422 E Virginia Ave, Glendora, CA 91741-2366.
- What is Crystal Du's phone number?
- The practice phone number listed in the NPPES registry for Crystal Du is (626) 616-6896.
- Is Crystal Du's NPI active?
- Yes — Crystal Du's NPI (1275429417) is active in the NPPES registry as of the last update on 2025-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.