Carrie Ann Horwitch, MD - Medicare Internal Medicine in Seattle, WA

Carrie Ann Horwitch, MD is a medicare enrolled "Internal Medicine" physician in Seattle, Washington. She went to University Of Arizona College Of Medicine and graduated in 1987 and has 37 years of diverse experience with area of expertise as Internal Medicine. She is a member of the group practice Virginia Mason Medical Center and her current practice location is 1100 9th Ave, Ms: C8-gim, Seattle, Washington. You can reach out to her office (for appointments etc.) via phone at (206) 223-6600.

Carrie Ann Horwitch is licensed to practice in Washington (license number MD00028041) 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 1477574325.

Contact Information

Carrie Ann Horwitch, MD
1100 9th Ave, Ms: C8-gim,
Seattle, WA 98101-2756
(206) 223-6600
Not Available

Map and Direction




Physician's Profile

Full NameCarrie Ann Horwitch
GenderFemale
SpecialityInternal Medicine
Experience37 Years
Location1100 9th Ave, 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:
  • Carrie Ann Horwitch attended and graduated from University Of Arizona College Of Medicine in 1987
  NPI Data:
  • NPI Number: 1477574325
  • Provider Enumeration Date: 07/23/2006
  • Last Update Date: 09/05/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 6305897349
  • Enrollment ID: I20050207000716

Medical Identifiers

Medical identifiers for Carrie Ann Horwitch such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1477574325NPI-NPPES
US0868620OtherWAAETNA/USHC PCP
MD2094WOtherWAALASKA MEDICAID
HO2779OtherWABLUE SHIELD
0039581OtherWALABOR & INDUSTRY
010064293OtherRAILROAD MEDICARE
8130957MedicaidWA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine MD00028041 (Washington)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Virginia Mason Medical CenterSeattle, WAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Virginia Mason Medical Center9830002617834

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. Carrie Ann Horwitch allows following entities to bill medicare on her behalf.
Entity NameVirginia Mason Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1801851258
PECOS PAC ID: 9830002617
Enrollment ID: O20031107000383

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. Carrie Ann Horwitch 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
Carrie Ann Horwitch, MD
1100 Olive Way, Msc M4-pa,
Seattle, WA 98101-1873

Ph: (206) 515-5811
Carrie Ann Horwitch, MD
1100 9th Ave, Ms: C8-gim,
Seattle, WA 98101-2756

Ph: (206) 223-6600

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.