Gerald L Tarder, MD - Medicare Gastroenterology in Walnut Creek, CA

Gerald L Tarder, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Walnut Creek, California. He graduated from medical school in 1970 and has 54 years of diverse experience with area of expertise as Gastroenterology. His current practice location is 130 La Casa Via, Ste 107, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (925) 938-6060.

Gerald L Tarder is licensed to practice in California (license number G26001) 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 1396833984.

Contact Information

Gerald L Tarder, MD
130 La Casa Via, Ste 107,
Walnut Creek, CA 94598-3045
(925) 938-6060
(925) 938-0119

Map and Direction




Physician's Profile

Full NameGerald L Tarder
GenderMale
SpecialityGastroenterology
Experience54 Years
Location130 La Casa Via, Walnut Creek, 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:
  • Gerald L Tarder graduated from medical school in 1970
  NPI Data:
  • NPI Number: 1396833984
  • Provider Enumeration Date: 10/10/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 8729070800
  • Enrollment ID: I20040330001806

Medical Identifiers

Medical identifiers for Gerald L Tarder such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1396833984NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology G26001 (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. Gerald L Tarder allows following entities to bill medicare on his behalf.
Entity NameJohn Muir Trauma Physicians Billing Service
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1093864837
PECOS PAC ID: 3476542515
Enrollment ID: O20050420001452
Entity NameGerald L Tarder Md A Professional Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447424908
PECOS PAC ID: 3072683515
Enrollment ID: O20080610000305

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. Gerald L Tarder 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
Gerald L Tarder, MD
130 La Casa Via, Ste 107,
Walnut Creek, CA 94598-3045

Ph: (925) 938-6060
Gerald L Tarder, MD
130 La Casa Via, Ste 107,
Walnut Creek, CA 94598-3045

Ph: (925) 938-6060

Reviews and Comments


Internal Medicine Doctors in Walnut Creek, CA

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Mr. David Nathanson,
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Mark D Nathan, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 106 La Casa Via, #140, Walnut Creek, CA 94598
Phone: 925-274-2860    Fax: 925-932-4527

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.