Dr Jianyu Xu, MD - Medicare Endocrinology in Concord, CA

Dr Jianyu Xu, MD is a medicare enrolled "Internal Medicine - Endocrinology, Diabetes & Metabolism" physician in Concord, California. She graduated from medical school in 1994 and has 30 years of diverse experience with area of expertise as Endocrinology. She is a member of the group practice John Muir Physician Network and her current practice location is 2700 Grant St Ste 200, Concord, California. You can reach out to her office (for appointments etc.) via phone at (925) 677-0515.

Dr Jianyu Xu is licensed to practice in California (license number A141505) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1538499934.

Contact Information

Dr Jianyu Xu, MD
2700 Grant St Ste 200,
Concord, CA 94520-2270
(925) 677-0515
Not Available

Map and Direction




Physician's Profile

Full NameDr Jianyu Xu
GenderFemale
SpecialityEndocrinology
Experience30 Years
Location2700 Grant St Ste 200, Concord, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Jianyu Xu graduated from medical school in 1994
  NPI Data:
  • NPI Number: 1538499934
  • Provider Enumeration Date: 01/06/2010
  • Last Update Date: 10/29/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 9638461528
  • Enrollment ID: I20160713002423

Medical Identifiers

Medical identifiers for Dr Jianyu Xu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1538499934NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism A141505 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
John Muir Medical Center - Walnut Creek CampusWalnut creek, CAHospital
John Muir Medical Center - Concord CampusConcord, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
John Muir Physician Network6608789813442

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 Jianyu Xu allows following entities to bill medicare on her behalf.
Entity NameJohn Muir Physician Network
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1841407665
PECOS PAC ID: 6608789813
Enrollment ID: O20031226000143

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 Jianyu 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 Jianyu Xu, MD
1450 Treat Blvd # 300,
Walnut Creek, CA 94597-2168

Ph: (925) 952-2888
Dr Jianyu Xu, MD
2700 Grant St Ste 200,
Concord, CA 94520-2270

Ph: (925) 677-0515

Reviews and Comments


Internal Medicine Doctors in Concord, CA

Lori Kay Danze, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Medicare Enrolled
Practice Location: 2415 High School Ave, Suite #800, Concord, CA 94520
Phone: 925-687-5210    
Dr. Arseen E Soliman, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 2700 Grant St, Suite 200, Concord, CA 94520
Phone: 925-677-0500    Fax: 925-677-0519
Michael Ein, MD
Endocrinology, Diabetes & Metabolism
Medicare: Not Enrolled in Medicare
Practice Location: 3301 Clayton Rd, Concord, CA 94519
Phone: 925-753-1986    
Mr. Alireza Rezapour, M.D
Endocrinology, Diabetes & Metabolism
Medicare: Medicare Enrolled
Practice Location: 2000 Sierra Road, Concord, CA 94518
Phone: 925-363-2000    Fax: 925-363-2006
Dr. Smitha Reddy Anam, M.D
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 2485 High School Ave Ste 311, Concord, CA 94520
Phone: 925-687-7272    Fax: 925-687-1847
Dr. Abraham K Chung, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 2700 Grant St, Suite 200, Concord, CA 94520
Phone: 925-674-2609    Fax: 925-674-2211
Hari Krishan Samplay, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Not Enrolled in Medicare
Practice Location: 2182 East St, Concord, CA 94520
Phone: 925-597-0202    

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.