Dr. Chen Xie, MD

  • Santa Monica, CA
  • Rheumatologist
NPI1528452448PAC ID0042515769
Medicare services, 2024
337
Medicare patients, 2024
117
Part D claims, 2024
842
Publications
13
MIPS score, 2024
88
Practice address
1250 16th Street, Santa Monica, CA 90404
Practice phone
Call (310) 319-4000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UCLA Santa Monica Medical Center

Hospital · Santa Monica, California

See all 6 affiliations

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Dr. Chen Xie is a rheumatologist in Santa Monica, California

Dr. Xie practices at UCLA Santa Monica Medical Center in Santa Monica, California, part of University of California Health.

Dr. Xie's NPI, 1528452448, was assigned on March 28, 2015. Dr. Xie graduated from University Of Washington School Of Medicine in 2015. Dr. Xie's California license number on file is A155910.

NPI and contact details
Medicare PAC ID
0042515769
NPI enumeration date
March 28, 2015
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(310) 319-4000
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
37
Medical school graduation
2015

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Chen Xie practices at UCLA Santa Monica Medical Center in Santa Monica, California

Dr. Xie's primary practice is UCLA Santa Monica Medical Center, at 1250 16th Street, Santa Monica, CA 90404 in Los Angeles County. The practice phone is (310) 319-4000.

Source: Dmand AI Affiliation Data

Dr. Chen Xie is affiliated with 4 sites of care and 2 medical groups

Dr. Xie's primary practice is UCLA Santa Monica Medical Center in Santa Monica, California, part of University of California Health. Dr. Xie is also affiliated with Ronald Reagan UCLA Medical Center. The medical group on file is UCLA Medical Group. Dmand AI also links Dr. Xie to 1 more community health center, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 6 affiliations for Dr. Xie

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Chen Xie's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Xie practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UCLA Santa Monica Medical CenterAvailable with a free account
+3 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Chen Xie is one of 821 rheumatologists in California

Rheumatology is Dr. Xie's primary specialty in the NPI Registry, under taxonomy code 207RR0500X. Dr. Xie is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Xie's licenses on file in 2 states: California and Illinois.

Specialties and state licenses

  • Rheumatology, CaliforniaPrimaryLicense A155910 · 2018 to 2025 · taxonomy 207RR0500X
  • Internal medicine, IllinoisLicense 1528452448 · 2015 to 2018 · taxonomy 207R00000X

Clinical focus

Dmand AI lists arteritis, arthritis, gout, joint pain, lupus, muscle disease, muscle pain, fibromyalgia, and limb pain and osteoporosis among the conditions Dr. Xie treats.

Rheumatologists near Dr. Xie

Counts of rheumatologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Chen Xie billed Medicare for 337 services in 2024

CMS data shows 337 Medicare services from Dr. Xie across 6 procedure codes in 2024, for 117 Medicare patients. Medicare paid $29,859 for them. Every service was in an office.

Medicare services, 2024337
Medicare patients117
Paid by Medicare$29,859
Procedure codes6

Dr. Xie's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2192024: 2104%
Other services
2023: 02024: 105
Surgery
2023: 02024: 22

Dr. Xie compared with the California median for rheumatologists, 2024

  • Dr. Xie
  • California median
Medicare services
337vs 90063% below
Medicare patients
117vs 21646% below
Part D claims
728vs 96224% below

Medians across 773 rheumatologists in California with Dmand AI profiles that report each measure.

Dr. Xie's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Xie

Need commercial claims for Dr. Xie?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Xie and other rheumatologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Chen Xie treated 117 Medicare patients in 2024, average age 68

CMS counts 117 Medicare patients who saw Dr. Xie in 2024. The largest group is 65 to 74, with 54 patients. 73% of them have arthritis, and 68% have high blood pressure. 50% are also on Medicaid. Their average risk score is 1.84, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Xie's median patient age at 48, with 69% women.

Medicare patients, 2024117
Average age68
Average risk score1.84
Also on Medicaid50%

Dr. Xie's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Xie's Medicare patients by sex, 2024

  • Women8068%
  • Men3732%

Chronic conditions among Dr. Xie's Medicare patients, 2024

  1. Arthritis73%
  2. High blood pressure68%
  3. High cholesterol68%
  4. Diabetes38%
  5. Mood disorders35%
  6. Depression31%
  7. Osteoporosis28%
  8. Chronic kidney disease26%

Share of Medicare patients with each condition. A patient can have several.

Dr. Xie's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 48

Patient panel by sex, all payers

  • Women69%
  • Men30%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Chen Xie wrote 842 Medicare Part D claims in 2024

In 2024, Dr. Xie wrote 842 Medicare Part D claims for 195 patients. 87% of them were for generic drugs. CMS names the drug for 728 of them, across 23 drugs with 11 or more claims each, at $538,821 in total drug cost. In 2023, CMS named 525 claims across 18 drugs.

Part D claims, 2024842
Drugs named by CMS23
Total drug cost$538,821
Part D patients195

Dr. Xie's Part D claims by kind of drug, 2024

  • Generic732 claims87%
  • Brand-name110 claims13%

Dr. Xie's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Xie's Part D claims, 2024

  • Opioids2%14 of 842 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 5252024: 72839%

Drugs named by CMS: 23 in 2024, 18 in 2023.

See all prescribing by Dr. Xie

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Chen Xie scored 88 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Xie for performance year 2024, reported as part of a group. Dr. Xie accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Xie as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Xie's MIPS scores, performance year 2024

  • 88of 100Final score
  • 79.4of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 74of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Chen Xie has 13 publications on record

Dmand AI links 13 papers to Dr. Xie, published from 2016 to 2024. 2023 was the busiest year, with 3. The most frequent topics are Dermatitis, Atopic, Dog Diseases and Dogs. Dr. Xie has published most often in Int J Mol Sci. Dr. Xie's most frequent co-authors are Zhijun Wang, MD, Thanda Aung, MD and Jonathan Dau, MD.

Papers13
Years published2016 to 2024

Dr. Xie's papers by year, 2016 to 2024

Topics Dr. Xie writes about most

  • Dermatitis, Atopic
  • Dog Diseases
  • Dogs
  • Chromatography, High Pressure Liquid
  • Cyclic Nucleotide Phosphodiesterases, Type 4
  • Leukocytes, Mononuclear
  • MicroRNAs
  • Phosphorylation

Dr. Xie's most frequent co-authors

Recent publications by Dr. Xie

See all 13 publications and co-authors

See who Dr. Xie researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Xie works with, so you can find a warm path to the right rheumatologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Chen Xie received $19 in industry payments in 2022

CMS Open Payments shows 1 general payment to Dr. Xie from 1 drug or device company in 2022. Food and beverage make up the largest share, 100% of the total. Biogen, Inc. paid the most, $19.

Companies that paid Dr. Xie the most, 2022 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Xie

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Chen Xie graduated from University Of Washington School Of Medicine

Dr. Xie graduated from University Of Washington School Of Medicine in 2015. Dr. Xie is a member of ACR.

  1. Medical schoolUniversity Of Washington School Of Medicine
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in rheumatologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Chen Xie accepts plans from 12 insurance carriers

Dr. Xie is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • Aetna
  • Elevance
  • Blue Cross Blue Shield of Michigan
  • United Healthcare
  • HCSC
  • Alliant Health Plans
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • +4 more carriersWith a free account

Plan types Dr. Xie accepts, by number of carriers

  1. PPO9
  2. Medicare8
  3. HMO6
  4. EPO4
  5. POS4

Source: Dmand AI Insurance Network Data

Sources for Dr. Chen Xie's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Chen Xie

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Chen Xie's NPI number?

Dr. Chen Xie's NPI number is 1528452448. It was assigned on March 28, 2015, and it is active in the NPI Registry.

What kind of doctor is Dr. Chen Xie?

Dr. Chen Xie is a rheumatologist in Santa Monica, California. The primary specialty in the NPI Registry is Rheumatology Physician (taxonomy code 207RR0500X).

Where does Dr. Chen Xie practice?

Dr. Xie practices at 1250 16th Street, Santa Monica, CA 90404. Dr. Xie's primary practice is UCLA Santa Monica Medical Center in Santa Monica, California, part of University of California Health. Dmand AI also links Dr. Xie to 1 community health center, 1 group practice or clinic and 1 medical group.

What is Dr. Chen Xie's office phone number?

The practice phone on file for Dr. Xie is (310) 319-4000.

What is Dr. Chen Xie's medical license number?

Dr. Xie's California license number on file is A155910, one of the licenses on file in 2 states.

Which states has Dr. Chen Xie been licensed in?

Dmand AI has state licenses on file for Dr. Xie in California (2018 to 2025) and Illinois (2015 to 2018).

Which hospitals is Dr. Chen Xie affiliated with?

Dr. Xie practices at UCLA Santa Monica Medical Center in Santa Monica, California. Dr. Xie is also affiliated with Ronald Reagan UCLA Medical Center.

What medical group is Dr. Chen Xie part of?

Dr. Xie is linked to UCLA Medical Group. Dmand AI links Dr. Xie to 1 more medical group.

Does Dr. Chen Xie accept Medicare?

Yes. CMS data shows Dr. Xie billed Medicare for 337 services in 2024, and Dr. Xie accepts Medicare assignment.

Does Dr. Chen Xie offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Xie as offering telehealth services.

Show 11 more questionsShow fewer questions

What is Dr. Chen Xie's MIPS score?

Dr. Xie's MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.

How many Medicare patients does Dr. Chen Xie see?

CMS counts 117 Medicare patients who saw Dr. Xie in 2024, with an average age of 68.

Is Dr. Chen Xie board certified?

Yes. Dr. Xie is board certified in internal medicine by the American Board of Internal Medicine.

What services does Dr. Chen Xie bill to Medicare?

In 2024, Dr. Xie's most billed Medicare services were medicare service (G2211), office visit, established patient (99215) and office visit, established patient (99214).

Where did Dr. Chen Xie go to medical school?

Dr. Xie graduated from University Of Washington School Of Medicine in 2015.

What drugs does Dr. Chen Xie prescribe most?

In 2024 Medicare Part D data, Dr. Xie's most prescribed drugs by claims were Prednisone, Hydroxychloroquine Sulfate and Celecoxib.

Has Dr. Chen Xie received payments from drug or device companies?

CMS Open Payments shows $19 in general payments to Dr. Xie from 1 company from 2022 to 2022. The largest total came from Biogen, Inc.

How long has Dr. Chen Xie been practicing?

Dr. Xie graduated from medical school in 2015, 11 years ago.

Does Dr. Chen Xie do research?

Dmand AI links 13 publications to Dr. Xie, published from 2016 to 2024.

Who does Dr. Chen Xie publish with?

Dr. Xie's most frequent co-authors are Zhijun Wang, MD (3 shared papers), Thanda Aung, MD (1 shared paper) and Jonathan Dau, MD (1 shared paper).

What insurance does Dr. Chen Xie accept?

Dr. Xie is in network with 12 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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