David Robert Demartini, MD - Medicare Ophthalmology in Walnut Creek, CA

David Robert Demartini, MD is a medicare enrolled "Ophthalmology" physician in Walnut Creek, California. His current practice location is 122 La Casa Via, Ste 222, Walnut Creek, California. You can reach out to his office (for appointments etc.) via phone at (925) 947-0888.

David Robert Demartini is licensed to practice in California (license number G390000) 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 1437134855.

Contact Information

David Robert Demartini, MD
122 La Casa Via, Ste 222,
Walnut Creek, CA 94598-3052
(925) 947-0888
(925) 947-4385

Map and Direction




Physician's Profile

Full NameDavid Robert Demartini
GenderMale
SpecialityOphthalmology
Location122 La Casa Via, Walnut Creek, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1437134855
  • Provider Enumeration Date: 12/08/2005
  • Last Update Date: 09/05/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 4981605664
  • Enrollment ID: I20070305000702

Medical Identifiers

Medical identifiers for David Robert Demartini such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1437134855NPI-NPPES
00G390000MedicaidCA
00G390001MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology G390000 (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. David Robert Demartini allows following entities to bill medicare on his behalf.
Entity NameNorthern California Cornea Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1992889240
PECOS PAC ID: 9830190511
Enrollment ID: O20070123000535
Entity NameCentral Valley Eye Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1609975366
PECOS PAC ID: 8729178843
Enrollment ID: O20071213000153

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. David Robert Demartini 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
David Robert Demartini, MD
122 La Casa Via, Ste 222,
Walnut Creek, CA 94598-3052

Ph: (925) 947-0888
David Robert Demartini, MD
122 La Casa Via, Ste 222,
Walnut Creek, CA 94598-3052

Ph: (925) 947-0888

Reviews and Comments


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Phone: 925-906-2000    

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).

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