IndividualActive
Mary Chun, R.N.
NPI 1366866576 · Registered Nurse · Upland, CA
Mary Chun, R.N. is a Registered Nurse provider in Upland, CA (NPI 1366866576).
Provider details
- NPI number
- 1366866576
- Entity type
- Individual
- Primary specialty
- Registered NurseNursing Service Providers
- Credential
- R.N.
- Sex
- Female
- Sole proprietor
- No
- License
- 424699 (CA)
Specialties & taxonomies
Nursing Service Providers
Profile Score
Detailed profile(76/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
12 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
1238 East Arrow Highway, #100
Upland, CA 91786
Phone: (909) 946-5348
Street-level locationGet directions
Mailing address
1238 E Arrow Hwy Ste 100
Upland, CA 91786-4951
Registry dates
- Enumerated
- 2014-02-07
- Last updated
- 2014-02-07
Frequently asked questions
- What is Mary Chun's NPI number?
- Mary Chun's National Provider Identifier (NPI) is 1366866576, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Chun's specialty?
- Mary Chun is listed in the NPPES registry with a primary specialty of Registered Nurse (Nursing Service Providers).
- Where is Mary Chun located?
- Mary Chun's practice location on file with NPPES is 1238 East Arrow Highway, #100, Upland, CA 91786.
- What is Mary Chun's phone number?
- The practice phone number listed in the NPPES registry for Mary Chun is (909) 946-5348.
- Is Mary Chun's NPI active?
- Yes — Mary Chun's NPI (1366866576) is active in the NPPES registry as of the last update on 2014-02-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.