DR. MELISSA S DEFREEST MD
NPI 1407960388
Emergency Medicine in Eugene, OR

Q: What is Melissa Defreest's NPI number?

The NPI number for Melissa Defreest is 1407960388. It was assigned to this individual provider in the NPPES registry on August 18, 2006.

Q: What is Melissa Defreest's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Q: When was this NPI record last updated?

The NPPES record for Melissa Defreest was last updated on May 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 18, 2006PECOS EnrolledAccepts Medicare Assignment

600 COUNTRY CLUB RD STE 100, EUGENE, OR 97401(541) 463-2390(541) 463-2889 Get Directions Write a Review

NPPES record last updated: May 7, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: May 7, 2026, Sep 20, 2025, Aug 13, 2025 (3 updates tracked since 2025).

On this page

About Dr. Melissa S Defreest Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MELISSA S DEFREEST MD (NPI 1407960388) is an individual emergency medicine provider in Eugene, Oregon, licensed in Oregon (MD41141) and active in the NPI registry since August 2006. She is enrolled in Medicare PECOS, maintains 7 additional practice locations, and is a graduate of Oregon Health Sciences University School Of Medicine (2003).

NPPES Registry Identity

NPI1407960388

Entity TypeIndividualFemale

Primary Taxonomy207P00000X

Provider Legal NameDR. MELISSA S DEFREESTCredential: MD

Location Address600 COUNTRY CLUB RD STE 100Eugene, OR 97401-2240

Mailing AddressPo Box 35380Las Vegas, NV 89133-5380

Phone(541) 463-2390

Fax(541) 463-2889

Sole ProprietorNo

Medical School CMSOregon Health Sciences University School Of MedicineGraduated 2003

Enumeration DateAugust 18, 2006

Last NPPES UpdateMay 7, 20263 updates tracked since enumeration

NPPES CertifiedMay 7, 2026

✔ NPI 1407960388 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207P00000X

License✔ Licensed in OR · MD41141

Definition

An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.

600 COUNTRY CLUB RD STE 100, Eugene, OR 97401

Open in Google Maps ↗

Secondary Practice Locations 7

Location 13299 Hilyard StEugene, OR 97405-3721 · Phone (541) 222-8620 · Fax (541) 222-8652

Location 235859 Highway 58Pleasant Hill, OR 97455-9651 · Phone (541) 767-5200 · Fax (541) 937-1370

Location 32830 Crescent AveEugene, OR 97408-7397 · Phone (541) 686-9000 · Fax (541) 242-4585

Location 41255 Hilyard StEugene, OR 97401-3718 · Phone (503) 686-7300

Location 51515 Village Dr Ste 120Cottage Grove, OR 97424-9700 · Phone (541) 767-5200 · Fax (541) 767-5292

Location 62846 Willamette StEugene, OR 97405-8200 · Phone (541) 222-8700 · Fax (541) 222-8701

Location 71200 Hilyard St Ste 110Eugene, OR 97401-8112 · Phone (458) 205-6011 · Fax (541) 302-4733

Other Identifiers 8

OtherI62501Providence

Other215628Washington L&i

OtherI62501Group Health

MedicaidXPY206324CA

Other057221021Bcbs

Medicaid278470OR

OtherI62501Lipa

Medicaid8465049WA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc., PacificSource Health Plans.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Melissa S Defreest Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID1850398884

PECOS Enrollment IDI20061103000280

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Melissa Defreest reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Oregon Healthcare Resources, LLC

Same address

Urgent Care

600 COUNTRY CLUB RD STE 100
Eugene, OR 97401

Reassigned Medicare billing, Oregon enrollment
248 clinicians in this Medicare group

NPI 1215761002 (541) 463-2390

Peacehealth Medical Group

1.3 mi

Family Medicine

1200 HILYARD ST
Eugene, OR 97401

Reassigned Medicare billing, Oregon enrollment
412 clinicians in this Medicare group

NPI 1447207287 (541) 687-6217

Eugene Emergency Physicians PC

1.4 mi

Emergency Medicine

1255 HILYARD ST
Eugene, OR 97401

Reassigned Medicare billing, Oregon enrollment
58 clinicians in this Medicare group

NPI 1831133677 (541) 686-7300

Peacehealth Medical Group Cottage Grove

11 mi

Multi-Specialty

98 W OREGON AVE
Creswell, OR 97426

Reassigned Medicare billing, Oregon enrollment
83 clinicians in this Medicare group

NPI 1780631267 (541) 222-7700

Peacehealth

18 mi

Critical Access

1515 VILLAGE DR
Cottage Grove, OR 97424

Reassigned Medicare billing, Oregon enrollment
113 clinicians in this Medicare group

NPI 1902892391 (541) 686-7191

Salem Health

60 mi

General Acute Care Hospital

890 OAK ST SE
Salem, OR 97301

Reassigned Medicare billing, Oregon enrollment
625 clinicians in this Medicare group

NPI 1265431829 (503) 561-5200

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

28 services25 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97401 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$84.82 typical visit price

range $54.96 – $166.64

Typical copayment $21.20 (range $13.74 – $41.66)

Most-billed visit code 99203

Established Patient

$97.16 typical visit price

range $17.68 – $136.19

Typical copayment $24.29 (range $4.42 – $34.04)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 10

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MS. TRINA J VINER PA-C

Physician Assistant