Melissa Willitzer, PA-C - Medicare Physician Assistant in Portland, OR

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Melissa Willitzer, PA-C is a medicare enrolled "Physician Assistant" in Portland, Oregon. Her current practice location is 3181 Sw Sam Jackson Park Rd, Portland, Oregon. You can reach out to her office (for appointments etc.) via phone at (503) 494-7500.

Melissa Willitzer is licensed to practice in Oregon (license number 184240) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1447607577.

Contact Information

Melissa Willitzer, PA-C
3181 Sw Sam Jackson Park Rd,
Portland, OR 97239-3011
(503) 494-7500
Not Available

Map and Direction




Provider's Profile

Full NameMelissa Willitzer
GenderFemale
SpecialityPhysician Assistant
Location3181 Sw Sam Jackson Park Rd, Portland, Oregon
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1447607577
  • Provider Enumeration Date: 05/18/2016
  • Last Update Date: 12/11/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 3274809587
  • Enrollment ID: I20171031002140

Medical Identifiers

Medical identifiers for Melissa Willitzer such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1447607577NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant 184240 (Oregon)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. Melissa Willitzer allows following entities to bill medicare on her behalf.
Entity NameColumbia Lutheran Charities
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1134146939
PECOS PAC ID: 5294643359
Enrollment ID: O20021217000028
Entity NameSilverton Health
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1669424354
PECOS PAC ID: 8921901877
Enrollment ID: O20040129000172
Entity NameColumbia Lutheran Charities
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1821254129
PECOS PAC ID: 5294643359
Enrollment ID: O20040202000073
Entity NameTuality Medical Group LLC
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073929782
PECOS PAC ID: 7416173414
Enrollment ID: O20140729000238

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. Melissa Willitzer 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
Melissa Willitzer, PA-C
1834 Ne Schuyler St,
Portland, OR 97212-4553

Ph: (503) 793-3019		Melissa Willitzer, PA-C
3181 Sw Sam Jackson Park Rd,
Portland, OR 97239-3011

Ph: (503) 494-7500

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.