William Westra, MD - Medicare Pathology in Baltimore, MD

William Westra, MD is a medicare enrolled "Pathology - Anatomic Pathology & Clinical Pathology" physician in Baltimore, Maryland. He went to University Of Florida College Of Medicine and graduated in 1990 and has 34 years of diverse experience with area of expertise as Pathology. He is a member of the group practice Icahn School Of Medicine At Mount Sinai and his current practice location is 600 N Wolfe St, Baltimore, Maryland. You can reach out to his office (for appointments etc.) via phone at (410) 955-2660.

William Westra is licensed to practice in Maryland (license number D44723) 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 1114953346.

Contact Information

William Westra, MD
600 N Wolfe St,
Baltimore, MD 21287-0005
(410) 955-2660
Not Available

Map and Direction




Physician's Profile

Full NameWilliam Westra
GenderMale
SpecialityPathology
Experience34 Years
Location600 N Wolfe St, Baltimore, Maryland
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:
  • William Westra attended and graduated from University Of Florida College Of Medicine in 1990
  NPI Data:
  • NPI Number: 1114953346
  • Provider Enumeration Date: 06/22/2006
  • Last Update Date: 02/20/2013
  Medicare PECOS Information:
  • PECOS PAC ID: 6204019003
  • Enrollment ID: I20171226001409

Medical Identifiers

Medical identifiers for William Westra such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1114953346NPI-NPPES
043921500MedicaidMD

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207ZP0102XPathology - Anatomic Pathology & Clinical Pathology D44723 (Maryland)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mount Sinai HospitalNew york, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Icahn School Of Medicine At Mount Sinai22646910702323

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. William Westra allows following entities to bill medicare on his behalf.
Entity NameIcahn School Of Medicine At Mount Sinai
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104162700
PECOS PAC ID: 2264691070
Enrollment ID: O20130601000000
Entity NameFpa Hospital Based
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629319413
PECOS PAC ID: 4789826694
Enrollment ID: O20130806000185

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. William Westra 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
William Westra, MD
Po Box 64478,
Baltimore, MD 21264-4478

Ph: (410) 955-2660
William Westra, MD
600 N Wolfe St,
Baltimore, MD 21287-0005

Ph: (410) 955-2660

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.