Ellen Liu, NP-C
NPI 1497099220 · Family Nurse Practitioner · Upland, CA
Ellen Liu, NP-C is a Family Nurse Practitioner provider in Upland, CA (NPI 1497099220).
Provider details
- NPI number
- 1497099220
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 22434 (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
13 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
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
Additional practice locations (2)
- 1500 E. Duarte RdDuarte, CA 91010-3012Phone: (626) 471-9200Fax: (626) 301-8233
- 1500 E. Duarte RdDuarte, CA 91010-3012Phone: (626) 471-9200Fax: (626) 301-8233
Registry dates
- Enumerated
- 2012-11-16
- Last updated
- 2018-03-17
Frequently asked questions
- What is Ellen Liu's NPI number?
- Ellen Liu's National Provider Identifier (NPI) is 1497099220, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ellen Liu's specialty?
- Ellen Liu is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Ellen Liu located?
- Ellen Liu's practice location on file with NPPES is 1307 Mallorca St, Upland, CA 91784-1090.
- What is Ellen Liu's phone number?
- The practice phone number listed in the NPPES registry for Ellen Liu is (909) 946-8117.
- Is Ellen Liu's NPI active?
- Yes — Ellen Liu's NPI (1497099220) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.