Chia-Yi Joyce Lee, MD
Internal Medicine Physician · Los Angeles, CA
Chia-Yi Joyce Lee, MD is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1164635108, issued on May 7, 2007. Check the license (California A93476, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chia-Yi Joyce Lee
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A93476 CA
Self-reported in NPPES; status is on the state search - Practice location
- 8700 Beverly Blvd, RM 5512, Los Angeles, CA 90048
- Phone
- (310) 423-5581
- Enumerated
- May 7, 2007
- Record last updated
- Oct 16, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20101203000325); accepts Medicare assignment
- Medical or professional school
- New York Medical College, 2004
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Chia-Yi Joyce Lee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A93476Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
67% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,060 Medicare Part D claims for 172 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 64% of claims.
Most prescribed
- Albuterol Sulfate Hfa270 claims
- Spiriva Respimat116 claims
- Wixela Inhub107 claims
- Stiolto Respimat81 claims
- Breyna75 claims
- Alvesco64 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 GroupPanorama City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chia-Yi Joyce Lee among 17,696 internal medicine physician records in California
Chia-Yi Joyce Lee, MD is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2004 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
1,423 internal medicine physician records list a practice address in Los Angeles
They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Los Angeles → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- George Chaux, M.D.Los Angeles, CA 900481619938941
- Anish Desai, M.D.Los Angeles, CA 900481518928886
- Amanda Ewing, M.D.West Hollywood, CA 900481982661922
- Farshid Fararooy, M.D.Los Angeles, CA 900481922045939
- Eleonora Fedonenko, M.D.Los Angeles, CA 900481790721850
- Christina Harris, MDLos Angeles, CA 900481073553962
- Homayoon Khanlou, MDLos Angeles, CA 900481356335277
- Dorothy Lowe, M.D.Los Angeles, CA 900481275577835
Common questions
What is Chia-Yi Joyce Lee, MD's NPI number?
Chia-Yi Joyce Lee, MD's National Provider Identifier (NPI) is 1164635108, issued on May 7, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Chia-Yi Joyce Lee, MD located?
The NPPES record lists a practice address at 8700 Beverly Blvd, RM 5512, Los Angeles, CA, 90048. Phone: (310) 423-5581. Providers update this record themselves, so call before visiting.
How can I verify Chia-Yi Joyce Lee, MD's license?
NPPES lists California license number A93476, 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 Chia-Yi Joyce Lee, MD prescribe under Medicare Part D?
In 2024, Chia-Yi Joyce Lee, MD had 1,060 Medicare Part D claims for 172 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.