Kwi Yun Cassie Yu, M.D.
Psychiatry Physician · W Hollywood, CA
Kwi Yun Cassie Yu, M.D. is a psychiatry physician with a practice address in W Hollywood, California, and NPI 1134447931, issued on May 4, 2010. Check the license (California C168614, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Kwi Yun Cassie Yu
- Credential
- M.D.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- C168614 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9201 W Sunset Blvd Ste 415, W Hollywood, CA 90069
- Phone
- (424) 284-3000
- Enumerated
- May 4, 2010
- Record last updated
- Apr 26, 2025
- Fax
- (424) 239-3515
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Verify Kwi Yun Cassie Yu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C168614Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average psychiatry physician in 2024
53 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
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.
Kwi Yun Cassie Yu among 8,673 psychiatry physician records in California
Kwi Yun Cassie Yu, M.D. is one of 8,673 psychiatry physician records with a practice address in California. 67% 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 60% of them.
- NPI issued2010 · 60% of these records are older, 37% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2025 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1 psychiatry physician record lists a practice address in W Hollywood
They are 1 of the 27 NPPES records with a practice address in W Hollywood, and 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in W Hollywood → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- C Edward Castelo, M.D.West Hollywood, CA 900691497280978
- Joshua Cohen, MDWest Hollywood, CA 900691366903106
- Richard Metzner, M.D.West Hollywood, CA 900691134349061
- Andrew Park, MDWest Hollywood, CA 900691982137519
- Jessica RabbanyWest Hollywood, CA 900691508495490
- Gustavo Vintas, M.D.Los Angeles, CA 900691285720698
- David Wolff, M.D.Los Angeles, CA 900691265534572
- Daniel Wu, MDWest Hollywood, CA 900691306233101
Common questions
What is Kwi Yun Cassie Yu, M.D.'s NPI number?
Kwi Yun Cassie Yu, M.D.'s National Provider Identifier (NPI) is 1134447931, issued on May 4, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Kwi Yun Cassie Yu, M.D. located?
The NPPES record lists a practice address at 9201 W Sunset Blvd Ste 415, W Hollywood, CA, 90069. Phone: (424) 284-3000. Providers update this record themselves, so call before visiting.
How can I verify Kwi Yun Cassie Yu, M.D.'s license?
NPPES lists California license number C168614, 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 Kwi Yun Cassie Yu, M.D. prescribe under Medicare Part D?
In 2024, Kwi Yun Cassie Yu, M.D. had 53 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.