Xi Chen, MD
Family Medicine Physician · San Francisco, CA
Xi Chen, MD is a family medicine physician with a practice address in San Francisco, California, and NPI 1902434970, issued on Mar 27, 2020. Check the license (California A185823, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Xi Chen
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A185823 CA
Self-reported in NPPES; status is on the state search - Practice location
- 840 Irving St, San Francisco, CA 94122
- Phone
- (888) 663-6331
- Enumerated
- Mar 27, 2020
- Record last updated
- Jul 6, 2026
- Fax
- (415) 252-7176
- Medicare enrollment
- Enrolled (PECOS I20230728000487); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 840 Irving St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- David Adler, PA-CPhysician Assistant1346992138
- Clarissa Calderon-Meza, FNP-CFamily Nurse Practitioner1700449162
- Maksura Chowdhury, M.D.Family Medicine Physician1831831197
- Rose Marie Grainda, PA-CPhysician Assistant1528253648
- Alexander KazberoukGeriatric Medicine (Internal Medicine) Physician1831694660
- Shevaun Lewallen, NPNurse Practitioner1679123616
Verify Xi Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A185823Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average family medicine physician in 2024
84 Medicare Part D claims for 53 beneficiaries, against an average of 3,544 among the 117,163 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.
Bills Medicare through one group practice
- Pih Health PhysiciansDowney, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Xi Chen among 17,133 family medicine physician records in California
Xi Chen, MD is one of 17,133 family medicine 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 2020, is newer than 88% of them.
- NPI issued2020 · 88% of these records are older, 9% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2017 · median 2005 among the 10,652 with a school on file
- Record last updated2026 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Family Medicine Physician providers in California
There are 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in San Francisco → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Wai-Lam Chan, M.D.San Francisco, CA 941221891791877
- Frank Chen, M.D.San Francisco, CA 941221104010586
- Aaron Del Tredici, MDSan Francisco, CA 941221891822888
- Annette Enriquez, M.D, PH.D.San Francisco, CA 941221770693863
- Winston Goh, MDSan Francisco, CA 941221992930242
- Lisa Golden, MDSan Francisco, CA 941221699892067
- Elizabeth Johnson, MDSan Francisco, CA 941221558493585
- Wai-Hang Lam, M.D.San Francisco, CA 941221063669224
Common questions
What is Xi Chen, MD's NPI number?
Xi Chen, MD's National Provider Identifier (NPI) is 1902434970, issued on Mar 27, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Xi Chen, MD located?
The NPPES record lists a practice address at 840 Irving St, San Francisco, CA, 94122. Phone: (888) 663-6331. Providers update this record themselves, so call before visiting.
How can I verify Xi Chen, MD's license?
NPPES lists California license number A185823, 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 Xi Chen, MD prescribe under Medicare Part D?
In 2024, Xi Chen, MD had 84 Medicare Part D claims for 53 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.