Leana Chien, CNS-BC, NP-BC
Gerontology Nurse Practitioner · Duarte, CA
Leana Chien, CNS-BC, NP-BC is a gerontology nurse practitioner with a practice address in Duarte, California, and NPI 1215252010, issued on Apr 5, 2010. Check the license (California 18898, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Leana Chien
- Credential
- CNS-BC, NP-BC
- Primary taxonomy
- Gerontology Nurse Practitioner 363LG0600X
- License number
- 18898 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Duarte RD, Duarte, CA 91010
- Phone
- (626) 256-4673
- Enumerated
- Apr 5, 2010
- Record last updated
- Nov 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20161220002168); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest gerontology nurse practitioner records → All 569 in California → Look up another NPI →
Also registered at 1500 Duarte RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chelsea Abad, CRNP, AGPCNP - BCGerontology Nurse Practitioner1952848137
- Wajidah Abdul-KhabirHospitalist Physician1215323522
- Farah Abdulla, MDDermatology Physician1093934390
- Megan Abel, PA-CPhysician Assistant1104100619
- Michelle Afkhami, M.D.Hematology (Pathology) Physician1326230228
- Vaibhav Agrawal, M.D.Hematology & Oncology Physician1538402565
Verify Leana Chien in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 18898Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 99.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $443.29
6 payments; by number, the most common kind was food and beverage; the largest payer was Incyte Corporation. The 3,903 providers of this specialty with any payment received $742.05 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- City OF Hope Medical FoundationUpland, CA
- Congregational HomesPomona, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leana Chien among 569 gerontology nurse practitioner records in California
Leana Chien, CNS-BC, NP-BC is one of 569 gerontology nurse practitioner records with a practice address in California. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 24% of them.
- NPI issued2010 · 24% of these records are older, 73% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2008 · median 2018 among the 239 with a school on file
- Record last updated2020 · 44% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
41 gerontology nurse practitioner records list a practice address in Duarte
They are 41 of the 1,287 NPPES records with a practice address in Duarte, and 569 gerontology nurse practitioner records in California.
All 569 in California → Every provider in Duarte → Gerontology Nurse Practitioner nationwide →
The 8 gerontology nurse practitioner records with the nearest ZIP codes
- Chelsea Abad, CRNP, AGPCNP - BCDuarte, CA 910101952848137
- Alice Ahn, NPDuarte, CA 910101790151405
- Jennifer Baecker, MSN, ANPDuarte, CA 910101548689649
- Brian Bowman, N.P.Duarte, CA 910101770971418
- Cecilio Cay, NPDuarte, CA 910101558675330
- Katrina Duncan, MSN, BSNDuarte, CA 910101881010429
- Vlad Gheorghiu, NPDuarte, CA 910101427426618
- Christien Jeyasingh, AGPCNP-BCDuarte, CA 910101245777663
Common questions
What is Leana Chien, CNS-BC, NP-BC's NPI number?
Leana Chien, CNS-BC, NP-BC's National Provider Identifier (NPI) is 1215252010, issued on Apr 5, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Leana Chien, CNS-BC, NP-BC located?
The NPPES record lists a practice address at 1500 Duarte RD, Duarte, CA, 91010. Phone: (626) 256-4673. Providers update this record themselves, so call before visiting.
How can I verify Leana Chien, CNS-BC, NP-BC's license?
NPPES lists California license number 18898, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
What is Leana Chien, CNS-BC, NP-BC's MIPS final score?
The 2023 MIPS final score is 99.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.