Brandon James Williams, MD - Medicare Internal Medicine in La Jolla, CA

Brandon James Williams, MD is a medicare enrolled "Internal Medicine" physician in La Jolla, California. He went to University Of California, San Diego School Of Medicine and graduated in 2018 and has 6 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Ximed Hospitalists, Inc. and his current practice location is 9850 Genesee Ave Ste 900, La Jolla, California. You can reach out to his office (for appointments etc.) via phone at (588) 626-7780.

Brandon James Williams is licensed to practice in California (license number A163743) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1871097436.

Contact Information

Brandon James Williams, MD
9850 Genesee Ave Ste 900,
La Jolla, CA 92037-1220
(588) 626-7780
(858) 626-4804

Map and Direction




Physician's Profile

Full NameBrandon James Williams
GenderMale
SpecialityInternal Medicine
Experience6 Years
Location9850 Genesee Ave Ste 900, La Jolla, California
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Brandon James Williams attended and graduated from University Of California, San Diego School Of Medicine in 2018
  NPI Data:
  • NPI Number: 1871097436
  • Provider Enumeration Date: 03/20/2018
  • Last Update Date: 07/27/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 4880099233
  • Enrollment ID: I20210823002142

Medical Identifiers

Medical identifiers for Brandon James Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1871097436NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A163743 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Scripps Memorial Hospital La JollaLa jolla, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Ximed Hospitalists, Inc.721493922233

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. Brandon James Williams allows following entities to bill medicare on his behalf.
Entity NameXimed Hospitalists, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831124791
PECOS PAC ID: 7214939222
Enrollment ID: O20070205000252

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. Brandon James Williams 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
Brandon James Williams, MD
4610 El Nido, #367,
Rancho Santa Fe, CA 92067

Ph: (408) 458-6093
Brandon James Williams, MD
9850 Genesee Ave Ste 900,
La Jolla, CA 92037-1220

Ph: (588) 626-7780

Reviews and Comments


Internal Medicine Doctors in La Jolla, CA

Dr. John Sturdivant Andrews, MD
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Practice Location: 1223 Via Barranca, La Jolla, CA 92037
Phone: 858-775-1976    
Dr. Mark C Adrian, M.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 9850 Genesee Ave, Suite 355, La Jolla, CA 92037
Phone: 858-202-0011    
Dr. Erminia M. Guarneri, M.D.
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Medicare: Not Enrolled in Medicare
Practice Location: 10666 N Torrey Pines Rd, La Jolla, CA 92037
Phone: 858-554-3330    Fax: 858-784-5933
Dr. Eric Hong, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 9834 Genesee Ave, Suite 300, La Jolla, CA 92037
Phone: 858-824-2900    Fax: 858-824-2910
Katrina Deleon, MD
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Practice Location: 10666 N Torrey Pines Rd, La Jolla, CA 92037
Phone: 858-554-6158    
Abhishek Gadre, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 9300 Campus Point Dr, La Jolla, CA 92037
Phone: 858-657-7118    
Mira Maria John, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 9300 Campus Point Dr, La Jolla, CA 92037
Phone: 800-926-8273    

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.