Andrew Yin
Hospitalist Physician · San Diego, CA
Andrew Yin is a hospitalist physician with a practice address in San Diego, California, and NPI 1447836085, issued on Mar 23, 2021. Check the license (California A198577, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Andrew Yin
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License numbers
- A198577 CA
D0100389 MD
Self-reported in NPPES; status is on the state search - Practice location
- 9455 Clairemont Mesa Blvd, San Diego, CA 92123
- Phone
- (858) 266-5000
- Enumerated
- Mar 23, 2021
- Record last updated
- Apr 6, 2026
- Medicare enrollment
- Enrolled (PECOS I20260330000476); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 9455 Clairemont Mesa Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sheebah Aazami, RTGeneral Care Registered Respiratory Therapist1598243230
- Whigmass Abegaz, ASCPPathology Specialist/Technologist1740767896
- Stephanie Acrey, RRTNeonatal/Pediatric Certified Respiratory Therapist1215417290
- Michael Ahmu, RRTRegistered Respiratory Therapist1922588169
- Peter AllenRegistered Respiratory Therapist1457835480
- Aurie-Ann AnchoCertified Respiratory Therapist1033698667
Verify Andrew Yin in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A198577Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average hospitalist physician in 2024
285 Medicare Part D claims for 86 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Atorvastatin Calcium33 claims
- Amlodipine Besylate29 claims
- Lisinopril20 claims
- Losartan Potassium14 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Andrew Yin among 3,099 hospitalist physician records in California
Andrew Yin is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 90% of them.
- NPI issued2021 · 90% of these records are older, 6% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2021 · median 2010 among the 2,505 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in San Diego → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Kalpana Chalasani, M.D.San Diego, CA 921231467560920
- Trung Dang, M.D.San Diego, CA 921231275543670
- Brent Drouin, M.D.San Diego, CA 921231356351555
- Yevgeniy Grobman, MDSan Diego, CA 921231295050243
- Robert Holmes, MDSan Diego, CA 921231962493841
- Arturo Lara Llerena, MDSan Diego, CA 921231538501721
- Brian Lichtenstein, M.D.San Diego, CA 921231205142908
- Ton Ngo, MDSan Diego, CA 921231427007988
Common questions
What is Andrew Yin's NPI number?
Andrew Yin's National Provider Identifier (NPI) is 1447836085, issued on Mar 23, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Andrew Yin located?
The NPPES record lists a practice address at 9455 Clairemont Mesa Blvd, San Diego, CA, 92123. Phone: (858) 266-5000. Providers update this record themselves, so call before visiting.
How can I verify Andrew Yin's license?
NPPES lists California license number A198577, 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 Andrew Yin prescribe under Medicare Part D?
In 2024, Andrew Yin had 285 Medicare Part D claims for 86 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
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.