Dr Mark Chu Xu, MD - Medicare Orthopaedic Surgery in San Francisco, CA

Dr Mark Chu Xu, MD is a medicare enrolled "Orthopaedic Surgery" physician in San Francisco, California. His current practice location is 2540 23rd St Bldg 7, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 476-2124.

Dr Mark Chu Xu is licensed to practice in California (license number A188903) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1003699471.

Contact Information

Dr Mark Chu Xu, MD
2540 23rd St Bldg 7,
San Francisco, CA 94143-2500
(415) 476-2124
Not Available

Map and Direction




Physician's Profile

Full NameDr Mark Chu Xu
GenderMale
SpecialityOrthopaedic Surgery
Location2540 23rd St Bldg 7, San Francisco, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1003699471
  • Provider Enumeration Date: 08/17/2023
  • Last Update Date: 08/17/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8022462514
  • Enrollment ID: I20231003000921

Medical Identifiers

Medical identifiers for Dr Mark Chu Xu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003699471NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207XS0117XOrthopaedic Surgery - Orthopaedic Surgery Of The Spine A188903 (California)Secondary
207XX0801XOrthopaedic Surgery - Orthopaedic Trauma A188903 (California)Secondary
207X00000XOrthopaedic Surgery A188903 (California)Primary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Mark Chu Xu allows following entities to bill medicare on his behalf.
Entity NameUniversity Of California San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1861578973
PECOS PAC ID: 4486567229
Enrollment ID: O20031212000897
Entity NameUniversity Of California Sfgh Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760457816
PECOS PAC ID: 5496668410
Enrollment ID: O20031229000429
Entity NameUcsf Medical Group Business Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477624104
PECOS PAC ID: 3779497870
Enrollment ID: O20040622001513
Entity NameCity & County Of San Francisco
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982737524
PECOS PAC ID: 1658280748
Enrollment ID: O20050309000770

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Mark Chu Xu is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Mark Chu Xu, MD
2540 23rd St Bldg 7,
San Francisco, CA 94143-2500

Ph: () -
Dr Mark Chu Xu, MD
2540 23rd St Bldg 7,
San Francisco, CA 94143-2500

Ph: (415) 476-2124

Reviews and Comments


Orthopaedic Surgery Doctors in San Francisco, CA

Dr. Justin David Krogue, M.D.
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Practice Location: 500 Parnassus Ave # Mu-320w, San Francisco, CA 94143
Phone: 415-476-1166    
Gopal Ram Lalchandani, MD
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Practice Location: 1500 Owens St Ste 200, San Francisco, CA 94158
Phone: 415-353-9400    Fax: 415-353-9643
Jay Shah, DO, MBA
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Practice Location: 400 Parnassus Ave Fl 3, San Francisco, CA 94143
Phone: 886-817-7463    Fax: 415-353-4047
Dr. David S. Bradford, MD
Orthopedic Surgery
Medicare: Not Enrolled in Medicare
Practice Location: 400 Parnassus Ave, San Francisco, CA 94143
Phone: 415-353-2739    Fax: 415-353-2248
Abbey Lynn Kennedy, M.D.
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 500 Parnassus Ave, Mu 320w, San Francisco, CA 94143
Phone: 415-476-6043    
James Damian Kelly Ii, MD
Orthopedic Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 3838 California St Rm 715, San Francisco, CA 94118
Phone: 415-668-8010    Fax: 415-592-2560

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.