Chen Xie, M.D.
Rheumatology Physician · Los Angeles, CA
Chen Xie, M.D. is a rheumatology physician with a practice address in Los Angeles, California, and NPI 1528452448, issued on Mar 28, 2015. Check the license (California A155910, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Chen Xie
- Credential
- M.D.
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License numbers
- A155910 CA
1528452448 IL
Self-reported in NPPES; status is on the state search - Practice location
- 700 W 7TH St # S270-D, Los Angeles, CA 90017
- Phone
- (213) 988-8380
- Enumerated
- Mar 28, 2015
- Record last updated
- Dec 21, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (213) 988-8390
- Medicare enrollment
- Enrolled (PECOS I20200727003107); accepts Medicare assignment
- Medical or professional school
- University Of Washington School Of Medicine, 2015
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 926 in California → Look up another NPI →
Also registered at 700 W 7TH St # S270-D
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Elliott Birnstein, M.D.Gastroenterology Physician1265703300
- Alisa ChalmersInternal Medicine Physician1801327333
- Negar Kahen, MDInternal Medicine Physician1366976326
- Johnathan Kao, M.D., M.P.H.Internal Medicine Physician1811358930
Verify Chen Xie in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A155910Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% fewer Medicare Part D claims than the average rheumatology physician in 2024
842 Medicare Part D claims for 195 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 14 claims were for opioids.
Most prescribed
- Prednisone76 claims
- Hydroxychloroquine Sulfate71 claims
- Celecoxib68 claims
- Meloxicam60 claims
- Lidocaine47 claims
- Diclofenac Sodium46 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): 86.1 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).
Bills Medicare through 2 group practices
- The Regents OF The University OF CaliforniaLos Angeles, CA
- Venice Family ClinicVenice, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Chen Xie among 926 rheumatology physician records in California
Chen Xie, M.D. is one of 926 rheumatology 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 2015, is newer than 82% of them.
- NPI issued2015 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2015 · median 2003 among the 641 with a school on file
- Record last updated2020 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in California
There are 926 rheumatology physician records in California.
All 926 in California → Every provider in Los Angeles → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Stephen Bland, MDLos Angeles, CA 900171821002627
- Brendan Cerk, MDLos Angeles, CA 900171558716357
- Joanna Davies, M.D.Los Angeles, CA 900171699746958
- Wagdy Kades, M.D.Los Angeles, CA 900171326080060
- Alexander Ruggieri, M.D.Los Angeles, CA 900151780028209
- Louis Zucker, MDLos Angeles, CA 900151124128145
- Brian Huh, M.D.Los Angeles, CA 900201275614455
- Sonwoo Lee, MDLos Angeles, CA 900201336168616
Common questions
What is Chen Xie, M.D.'s NPI number?
Chen Xie, M.D.'s National Provider Identifier (NPI) is 1528452448, issued on Mar 28, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Chen Xie, M.D. located?
The NPPES record lists a practice address at 700 W 7TH St # S270-D, Los Angeles, CA, 90017. Phone: (213) 988-8380. Providers update this record themselves, so call before visiting.
How can I verify Chen Xie, M.D.'s license?
NPPES lists California license number A155910, 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 Chen Xie, M.D. prescribe under Medicare Part D?
In 2024, Chen Xie, M.D. had 842 Medicare Part D claims for 195 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Chen Xie, M.D.'s MIPS final score?
The 2023 MIPS final score is 86.1 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.