John Giddens Jr, MD - Medicare Internal Medicine in Fremont, CA

John Giddens Jr, MD is a medicare enrolled "Internal Medicine" physician in Fremont, California. He went to University Of California, Davis School Of Medicine and graduated in 1980 and has 44 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice American Current Care Of California A Medical Corporation and his current practice location is 3161 Walnut Avenue, Fremont, California. You can reach out to his office (for appointments etc.) via phone at (510) 796-1000.

John Giddens Jr is licensed to practice in California (license number G45185) 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 1417934803.

Contact Information

John Giddens Jr, MD
3161 Walnut Avenue,
Fremont, CA 94538
(510) 796-1000
(510) 796-1050

Map and Direction




Physician's Profile

Full NameJohn Giddens Jr
GenderMale
SpecialityInternal Medicine
Experience44 Years
Location3161 Walnut Avenue, Fremont, 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:
  • John Giddens Jr attended and graduated from University Of California, Davis School Of Medicine in 1980
  NPI Data:
  • NPI Number: 1417934803
  • Provider Enumeration Date: 12/27/2005
  • Last Update Date: 05/09/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 2163409616
  • Enrollment ID: I20090219000438

Medical Identifiers

Medical identifiers for John Giddens Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1417934803NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G45185 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
American Current Care Of California A Medical Corporation579985430381

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. John Giddens Jr allows following entities to bill medicare on his behalf.
Entity NameJohn Giddens Jr Md Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1174634216
PECOS PAC ID: 9234021288
Enrollment ID: O20040701001248
Entity NameAmerican Current Care Of California A Medical Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1750573622
PECOS PAC ID: 5799854303
Enrollment ID: O20080522000420

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. John Giddens Jr 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
John Giddens Jr, MD
Po Box 1129,
Danville, CA 94526-8129

Ph: (510) 796-1000
John Giddens Jr, MD
3161 Walnut Avenue,
Fremont, CA 94538

Ph: (510) 796-1000

Reviews and Comments


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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.