William V Harrer Iii, MD - Medicare Hematology/oncology in Sequim, WA

William V Harrer Iii, MD is a medicare enrolled "Internal Medicine - Medical Oncology" physician in Sequim, Washington. He went to Jefferson Medical College Of Thomas Jefferson University and graduated in 1989 and has 35 years of diverse experience with area of expertise as Hematology/oncology. He is a member of the group practice Florida Cancer Specialists And Research Institute, Llc, Olympic Medical Physicians, Lutheran Hospital Association Of The San Luis Valley and his current practice location is 844 N 5th Ave, Sequim, Washington. You can reach out to his office (for appointments etc.) via phone at (360) 839-8953.

William V Harrer Iii is licensed to practice in Florida (license number ME81806) 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 1972584217.

Contact Information

William V Harrer Iii, MD
844 N 5th Ave,
Sequim, WA 98382-3045
(360) 839-8953
(605) 825-6143

Map and Direction




Physician's Profile

Full NameWilliam V Harrer Iii
GenderMale
SpecialityHematology/oncology
Experience35 Years
Location844 N 5th Ave, Sequim, Washington
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 V Harrer Iii attended and graduated from Jefferson Medical College Of Thomas Jefferson University in 1989
  NPI Data:
  • NPI Number: 1972584217
  • Provider Enumeration Date: 11/11/2005
  • Last Update Date: 10/12/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4183747660
  • Enrollment ID: I20101115000609

Medical Identifiers

Medical identifiers for William V Harrer Iii such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1972584217NPI-NPPES
263087700MedicaidFL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RH0000XInternal Medicine - Hematology ME81806 (Florida)Secondary
207RX0202XInternal Medicine - Medical Oncology MD61473306 (Washington)Secondary
207RX0202XInternal Medicine - Medical Oncology ME81806 (Florida)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Olympic Medical CenterPort angeles, WAHospital
San Luis Valley HealthAlamosa, COHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Florida Cancer Specialists And Research Institute, Llc2567356058382
Olympic Medical Physicians9537172358113
Lutheran Hospital Association Of The San Luis Valley4789589094110

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 V Harrer Iii allows following entities to bill medicare on his behalf.
Entity NameFlorida Cancer Specialists & Research Institute, Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760590962
PECOS PAC ID: 2567356058
Enrollment ID: O20040216000091

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 V Harrer Iii 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 V Harrer Iii, MD
Po Box 850,
Port Angeles, WA 98362-0146

Ph: (360) 417-7111
William V Harrer Iii, MD
844 N 5th Ave,
Sequim, WA 98382-3045

Ph: (360) 839-8953

Reviews and Comments


Internal Medicine Doctors in Sequim, WA

Dr. Carl G Weber, M.D.
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Medicare: Medicare Enrolled
Practice Location: 800 N 5th Ave, Ste 101, Sequim, WA 98382
Phone: 360-582-2690    Fax: 360-582-2691
Samantha F Reiter, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 840 N 5th Ave, Ste 100, Sequim, WA 98382
Phone: 360-582-2850    Fax: 360-582-2851
Dr. Eiko Klimant, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 844 N 5th Ave, Sequim, WA 98382
Phone: 360-683-9895    Fax: 360-582-5614
Carrie L Sun, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 800 N 5th Ave, Sequim, WA 98382
Phone: 360-565-0999    Fax: 360-582-4221
Dr. David Patrick Murphy, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 840 N 5th Ave Ste 1500, Sequim, WA 98382
Phone: 360-565-0999    Fax: 360-582-2841
Dr. Frank Henry Jahns, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 840 N 5th Ave Ste 1500, Sequim, WA 98382
Phone: 360-565-0999    Fax: 360-582-2841
Harry Everett Lyndes, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 777 N 5th Ave, Suite 105, Sequim, WA 98382
Phone: 360-582-2623    Fax: 360-582-9623

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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