Sandra Demars, MD - Medicare Internal Medicine in Seattle, WA

Sandra Demars, MD is a medicare enrolled "Internal Medicine" physician in Seattle, Washington. She went to Js Weill Medical College, Cornell University and graduated in 2010 and has 14 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Peacehealth, Jefferson County Public Hospital District No 2, Peacehealth and her current practice location is 1660 S Columbian Way, Seattle, Washington. You can reach out to her office (for appointments etc.) via phone at (206) 762-1010.

Sandra Demars is licensed to practice in Washington (license number MD60305685) 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 1811212749.

Contact Information

Sandra Demars, MD
1660 S Columbian Way,
Seattle, WA 98108-1532
(206) 762-1010
Not Available

Map and Direction




Physician's Profile

Full NameSandra Demars
GenderFemale
SpecialityInternal Medicine
Experience14 Years
Location1660 S Columbian Way, Seattle, Washington
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:
  • Sandra Demars attended and graduated from Js Weill Medical College, Cornell University in 2010
  NPI Data:
  • NPI Number: 1811212749
  • Provider Enumeration Date: 04/04/2010
  • Last Update Date: 03/06/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 3173820156
  • Enrollment ID: I20160318002154

Medical Identifiers

Medical identifiers for Sandra Demars such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1811212749NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 105754 (Alaska)Secondary
208M00000XHospitalist MD60305685 (Washington)Secondary
207R00000XInternal Medicine MD60305685 (Washington)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Peacehealth Ketchikan Medical CenterKetchikan, AKHospital
Jefferson HealthcarePort townsend, WAHospital
Peacehealth St John Medical CenterLongview, WAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Peacehealth943606761850
Jefferson County Public Hospital District No 24789593708104
Peacehealth5890689293185

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. Sandra Demars allows following entities to bill medicare on her behalf.
Entity NamePeacehealth
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801965736
PECOS PAC ID: 9436067618
Enrollment ID: O20031106000460
Entity NamePeacehealth
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1396705539
PECOS PAC ID: 9436067618
Enrollment ID: O20080114000791
Entity NameHospital Medicine Of Ak Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1346947470
PECOS PAC ID: 5395100598
Enrollment ID: O20230421002014

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. Sandra Demars 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
Sandra Demars, MD
10760 Ne Bill Point Dr,
Bainbridge Island, WA 98110-5746

Ph: (206) 321-1450
Sandra Demars, MD
1660 S Columbian Way,
Seattle, WA 98108-1532

Ph: (206) 762-1010

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).

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