Chiao Yen
Family Medicine Physician · Whittier, CA
Chiao Yen is a family medicine physician with a practice address in Whittier, California, and NPI 1598022162, issued on Apr 19, 2012. Check the license (California A120823, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chiao Yen
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A120823 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15725 Whittier Blvd, Whittier, CA 90603
- Phone
- (562) 947-1669
- Enumerated
- Apr 19, 2012
- Record last updated
- Mar 29, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (562) 789-4340
- Medicare enrollment
- Enrolled (PECOS I20121010000396); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 15725 Whittier Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kathleen Barry, M.D.Family Medicine Physician1770674343
- Robert Boonyaputthikul, D.O.Family Medicine Physician1700198801
- Angel Delgadillo, P.A.Medical Physician Assistant1821297482
- Rossana Embrador, NPFamily Nurse Practitioner1053663476
- Antonio Escobedo, MDInfectious Disease Physician1770756330
- Behzad Gilani, M.D.Pediatrics Physician1144321100
Verify Chiao Yen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A120823Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
3% more Medicare Part D claims than the average family medicine physician in 2024
3,656 Medicare Part D claims for 387 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 74 claims were for opioids.
Most prescribed
- Amlodipine Besylate255 claims
- Atorvastatin Calcium237 claims
- Lisinopril171 claims
- Losartan Potassium171 claims
- Simvastatin159 claims
- Levothyroxine Sodium150 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 76.3 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).
Bills Medicare through one group practice
- Pih Health PhysiciansLa Mirada, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chiao Yen among 17,133 family medicine physician records in California
Chiao Yen is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 66% of them.
- NPI issued2012 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2009 · median 2005 among the 10,652 with a school on file
- Record last updated2018 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
87 family medicine physician records list a practice address in Whittier
They are 87 of the 2,836 NPPES records with a practice address in Whittier, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Whittier → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Kathleen Barry, M.D.Whittier, CA 906031770674343
- Kimberly Bartelus, MDWhittier, CA 906031831578236
- Robert Boonyaputthikul, D.O.Whittier, CA 906031700198801
- Rosario Cecilio, M.D.Whittier, CA 906031841299898
- Rachel Dimacali, PA-CWhittier, CA 906031881989846
- Sylvia Garcia, M.D.Whittier, CA 906031497704761
- Randolph Holmes, M.D.Whittier, CA 906031235227984
- Stanley Kaller, DOWhittier, CA 906031013917145
Common questions
What is Chiao Yen's NPI number?
Chiao Yen's National Provider Identifier (NPI) is 1598022162, issued on Apr 19, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Chiao Yen located?
The NPPES record lists a practice address at 15725 Whittier Blvd, Whittier, CA, 90603. Phone: (562) 947-1669. Providers update this record themselves, so call before visiting.
How can I verify Chiao Yen's license?
NPPES lists California license number A120823, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Chiao Yen prescribe under Medicare Part D?
In 2024, Chiao Yen had 3,656 Medicare Part D claims for 387 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Chiao Yen's MIPS final score?
The 2023 MIPS final score is 76.3 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.