Mark Chu Xu, MD
Orthopaedic Surgery Physician · San Francisco, CA
Mark Chu Xu, MD is an orthopaedic surgery physician with a practice address in San Francisco, California, and NPI 1003699471, issued on Aug 17, 2023. Check the license (California A188903, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Chu Xu
- Credential
- MD
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License number
- A188903 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2540 23RD St Bldg 7, San Francisco, CA 94143
- Phone
- (415) 476-2124
- Enumerated
- Aug 17, 2023
- Record last updated
- Aug 17, 2023
- Medicare enrollment
- Enrolled (PECOS I20231003000921); accepts Medicare assignment
- Medical or professional school
- University Of Manitoba, Faculty Of Medicine, 2016
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Verify Mark Chu Xu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A188903Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $4,516.29
39 payments; by number, the most common kind was food and beverage; the largest payer was Stryker Corporation. The 15,003 providers of this specialty with any payment received $23,022.89 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 3 group practices
- Ucsf Medical Group Business ServicesSan Francisco, CA
- University OF California Sfgh Medical GroupSan Francisco, CA
- Washington Township Medical FoundationFremont, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Chu Xu among 2,276 orthopaedic surgery physician records in California
Mark Chu Xu, MD is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 99% of them.
- NPI issued2023 · 99% of these records are older, under 1% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2016 · median 2003 among the 1,347 with a school on file
- Record last updated2023 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in San Francisco → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Sigurd Berven, MDSan Francisco, CA 941431336193812
- David Bradford, MDSan Francisco, CA 941431003853193
- Alexis Dang, MDSan Francisco, CA 941431720119852
- Eliana Delgado, MDSan Francisco, CA 941431801963020
- Sibel Deviren, MDSan Francisco, CA 941431760435655
- Vedat Deviren, MDSan Francisco, CA 941431730230459
- Mohammad Diab, MDSan Francisco, CA 941431841243755
- Glenn Diekmann, M.D.San Francisco, CA 941431467584326
Common questions
What is Mark Chu Xu, MD's NPI number?
Mark Chu Xu, MD's National Provider Identifier (NPI) is 1003699471, issued on Aug 17, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Mark Chu Xu, MD located?
The NPPES record lists a practice address at 2540 23RD St Bldg 7, San Francisco, CA, 94143. Phone: (415) 476-2124. Providers update this record themselves, so call before visiting.
How can I verify Mark Chu Xu, MD's license?
NPPES lists California license number A188903, 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.
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.