Dr Melissa S Defreest, MD - Medicare Emergency Medicine in Eugene, OR

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Dr Melissa S Defreest, MD is a medicare enrolled "Emergency Medicine" physician in Eugene, Oregon. She went to Oregon Health Sciences University School Of Medicine and graduated in 2003 and has 21 years of diverse experience with area of expertise as Emergency Medicine. She is a member of the group practice Peacehealth Medical Group and her current practice location is 1255 Hilyard St, Eugene, Oregon. You can reach out to her office (for appointments etc.) via phone at (503) 686-7300.

Dr Melissa S Defreest is licensed to practice in Oregon (license number MD41141) 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 1407960388.

Contact Information

Dr Melissa S Defreest, MD
1255 Hilyard St,
Eugene, OR 97401-3718
(503) 686-7300
Not Available

Map and Direction




Physician's Profile

Full NameDr Melissa S Defreest
GenderFemale
SpecialityEmergency Medicine
Experience21 Years
Location1255 Hilyard St, Eugene, Oregon
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:
  • Dr Melissa S Defreest attended and graduated from Oregon Health Sciences University School Of Medicine in 2003
  NPI Data:
  • NPI Number: 1407960388
  • Provider Enumeration Date: 08/18/2006
  • Last Update Date: 12/03/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 1850398884
  • Enrollment ID: I20061103000280

Medical Identifiers

Medical identifiers for Dr Melissa S Defreest such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1407960388NPI-NPPES
215628OtherWASHINGTON L&I
8465049MedicaidWA
278470MedicaidOR
I62501OtherLIPA
I62501OtherPROVIDENCE
XPY206324MedicaidCA
I62501OtherGROUP HEALTH

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207P00000XEmergency Medicine MD41141 (Oregon)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Peacehealth Medical Group9032023270214

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. Dr Melissa S Defreest allows following entities to bill medicare on her behalf.
Entity NamePeacehealth
Entity TypePart A Provider - Critical Access Hospital
Entity IdentifiersNPI Number: 1902892391
PECOS PAC ID: 1254242357
Enrollment ID: O20030922000023
Entity NamePeacehealth Medical Group
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1447207287
PECOS PAC ID: 9032023270
Enrollment ID: O20031113000097
Entity NameEugene Emergency Physicians Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1831133677
PECOS PAC ID: 2264330448
Enrollment ID: O20031226000011
Entity NamePeacehealth
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902892391
PECOS PAC ID: 1254242357
Enrollment ID: O20040513000725

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. Dr Melissa S Defreest 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
Dr Melissa S Defreest, MD
Po Box 4078,
Portland, OR 97208-4078

Ph: (888) 633-0086		Dr Melissa S Defreest, MD
1255 Hilyard St,
Eugene, OR 97401-3718

Ph: (503) 686-7300

Reviews and Comments


Emergency Medicine Doctors in Eugene, OR

Dr. William Miller, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1255 Hilyard St, Eugene, OR 97401
Phone: 503-686-7300    
Thomas Seddon, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1255 Hilyard St, Eugene, OR 97401
Phone: 503-686-7300    
Dr. Philip Johnson, M.D.
Emergency Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 1255 Hilyard St, Eugene, OR 97401
Phone: 503-686-7300    
Dr. Richard Kozak, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1255 Hilyard St, Eugene, OR 97401
Phone: 503-686-7300    
Dr. Brad Anderson, M.D.
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1255 Hilyard St, Eugene, OR 97401
Phone: 503-686-7300    
Keith D Sumey, MD
Emergency Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1858 Fircrest Dr, Eugene, OR 97403
Phone: 616-881-9555    Fax: 616-881-9555
Dr. Tod Hayes, M.D.
Emergency Medicine
Medicare: Medicare Enrolled
Practice Location: 1255 Hilyard St, Eugene, OR 97401
Phone: 503-686-7300    

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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