Stella Xiang Chen, MD
Dermatology Physician · Phoenix, AZ
Stella Xiang Chen, MD is a dermatology physician with a practice address in Phoenix, Arizona, and NPI 1023673894, issued on May 7, 2019. Check the license (Arizona 69733, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Stella Xiang Chen
- Credential
- MD
- Primary taxonomy
- Dermatology Physician 207N00000X
- License number
- 69733 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 5777 E Mayo Blvd, Phoenix, AZ 85054
- Phone
- (480) 301-8000
- Enumerated
- May 7, 2019
- Record last updated
- Jul 26, 2023
- Medicare enrollment
- Enrolled (PECOS I20230719002556); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2019
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest dermatology physician records → All 350 in Arizona → Look up another NPI →
Also registered at 5777 E Mayo Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Stella Xiang Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 69733Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
28% fewer Medicare Part D claims than the average dermatology physician in 2024
572 Medicare Part D claims for 243 beneficiaries, against an average of 797 among the 12,802 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Triamcinolone Acetonide89 claims
- Ketoconazole74 claims
- Fluorouracil37 claims
- Betamethasone Diprop Augmented25 claims
- Dupixent Pen25 claims
- Methotrexate23 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): 78.6 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 one group practice
- Mayo Clinic ArizonaScottsdale, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Stella Xiang Chen among 350 dermatology physician records in Arizona
Stella Xiang Chen, MD is one of 350 dermatology physician records with a practice address in Arizona. 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 2019, is newer than 84% of them.
- NPI issued2019 · 84% of these records are older, 13% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2019 · median 2008 among the 241 with a school on file
- Record last updated2023 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207N00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Dermatology Physician providers in Arizona
There are 350 dermatology physician records in Arizona.
All 350 in Arizona → Every provider in Phoenix → Dermatology Physician nationwide →
The 8 dermatology physician records with the nearest ZIP codes
- Bianca Kang, MDPhoenix, AZ 850541174260822
- Benjamin Buttars, DOPhoenix, AZ 850501871236208
- Mark Rosenberg, DOPhoenix, AZ 850501598869687
- Francis Tobin, M.D.Phoenix, AZ 850501275546533
- Nathan Klein, FNP-CPhoenix, AZ 850481417469982
- Paul English, MDPhoenix, AZ 850441861434094
- Rita Fisler, M.D.Phoenix, AZ 850441134192859
- Michael McBride, DOPhoenix, AZ 850441508325697
Common questions
What is Stella Xiang Chen, MD's NPI number?
Stella Xiang Chen, MD's National Provider Identifier (NPI) is 1023673894, issued on May 7, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Stella Xiang Chen, MD located?
The NPPES record lists a practice address at 5777 E Mayo Blvd, Phoenix, AZ, 85054. Phone: (480) 301-8000. Providers update this record themselves, so call before visiting.
How can I verify Stella Xiang Chen, MD's license?
NPPES lists Arizona license number 69733, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Stella Xiang Chen, MD prescribe under Medicare Part D?
In 2024, Stella Xiang Chen, MD had 572 Medicare Part D claims for 243 beneficiaries; the average among dermatology physician prescribers was 797. Part D covers Medicare prescriptions only.
What is Stella Xiang Chen, MD's MIPS final score?
The 2023 MIPS final score is 78.6 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.