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

NPI Status: Active since August 18, 2006

Contact Information

600 COUNTRY CLUB RD STE 100
EUGENE, OR
ZIP 97401
Phone: (541) 463-2390
Fax: (541) 463-2889

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  • Individual
  • Female
  • Years of Experience 23
  • Emergency Medicine
  • Accepts Insurance
  • Accepts Medicare Approved Payment
  • PECOS Enrolled

About MELISSA DEFREEST

This page provides the complete NPI Profile along with additional information for Melissa Defreest, a provider established in Eugene, Oregon with a medical specialization in Emergency Medicine and more than 23 years of experience. She graduated from Oregon Health Sciences University School Of Medicine in 2003. The healthcare provider is registered in the NPI registry with number 1407960388 assigned on August 2006. The practitioner's primary taxonomy code is 207P00000X with license number MD41141 (OR). The provider is registered as an individual and her NPI record was last updated May 2026.

NPI
1407960388
Provider Name
DR. MELISSA S DEFREEST MD
Gender
Female
Entity Type
Individual
Location Address
600 COUNTRY CLUB RD STE 100 EUGENE, OR 97401
Location Phone
(541) 463-2390
Location Fax
(541) 463-2889
Mailing Address
PO BOX 35380 LAS VEGAS, NV 89133
Medical School Name
OREGON HEALTH SCIENCES UNIVERSITY SCHOOL OF MEDICINE
Graduation Year
2003
Is Sole Proprietor?
No
Enumeration Date
08-18-2006
Last Update Date
05-07-2026
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Location Map

Secondary Locations

  • 3299 Hilyard St
    Eugene, OR 97405
    (541) 222-8620
  • 35859 Highway 58
    Pleasant Hill, OR 97455
    (541) 767-5200
  • 1255 Hilyard St
    Eugene, OR 97401
    (503) 686-7300
  • 2830 Crescent Ave
    Eugene, OR 97408
    (541) 686-9000
  • 1515 Village Dr Ste 120
    Cottage Grove, OR 97424
    (541) 767-5200
  • 2846 Willamette St
    Eugene, OR 97405
    (541) 222-8700
  • 1200 Hilyard St Ste 110
    Eugene, OR 97401
    (458) 205-6011

Specialty - Primary Taxonomy

The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.

Classification

Emergency Medicine

Taxonomy Code
207P00000X
Type
Allopathic & Osteopathic Physicians
License No.
MD41141
License State
OR
Taxonomy Description
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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Moda Health Affinity Bronze 8000 - EPO
  • Moda Health Affinity Bronze 9000 - EPO
  • Moda Health Affinity Bronze HDHP 7500 - EPO
  • Moda Health Affinity Gold 1000 - EPO
  • Moda Health Affinity Gold 1500 - EPO
  • Moda Health Affinity Gold 250 - EPO
  • Moda Health Affinity Silver 3000 - EPO
  • Moda Health Affinity Silver 3400 - EPO
  • Moda Health Affinity Silver 4500 - EPO
  • Moda Health Affinity Silver 6000 - EPO
  • Moda Health Oregon Standard Bronze Affinity - EPO
  • Moda Health Oregon Standard Gold Affinity - EPO
  • Moda Health Oregon Standard Silver Affinity - EPO
  • Core Bronze HSA 10600 - EPO
  • Core Bronze HSA 7500 - EPO
  • Core Bronze HSA 8300 - EPO
  • Core Gold 1500 - EPO
  • Core Gold 3000 - EPO
  • Core Silver 3500 - EPO
  • Core Silver 4500 - EPO
  • Core Silver 5000 - EPO
  • Core Silver 7500 - EPO
  • Core Standard Expanded Bronze HSA - EPO
  • Core Standard Gold - EPO
  • Core Standard Silver - EPO
  • PacificSource Oregon Standard Bronze HSA Plan Core - EPO
  • PacificSource Oregon Standard Gold Plan Core - EPO
  • PacificSource Oregon Standard Silver Plan Core - EPO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
I62501OTHER (01)PROVIDENCE
215628OTHER (01)WASHINGTON L&I
I62501OTHER (01)GROUP HEALTH
XPY206324MEDICAID (05)CA 
057221021OTHER (01)BCBS
278470MEDICAID (05)OR 
I62501OTHER (01)LIPA
8465049MEDICAID (05)WA 

Medicare Participation & PECOS Enrollment Status

Melissa Defreest is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.

Melissa Defreest is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Is the provider registered in PECOS? Yes

  • PECOS PAC ID: 1850398884

    What is the PECOS Associate Control ID?
    A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.

  • PECOS Enrollment ID: I20061103000280

    What is the Provider Enrollment ID?
    The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.

  • Accepts Medicare Assignment? Yes

    What does it mean "accepts medicare assignment"?
    When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
    A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.

  • Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes

  • Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes

  • Eligible to Order or Refer a Home Health Agency (HHA): Yes

  • Eligible to Order or Refer Power Mobility Devices: Yes

Areas of Expertise

The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.

Critical care, first 30-74 minutes

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

This service was performed 14 times for 14 patients

Emergency department visit with high level of medical decision making

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

This service was performed 80 times for 78 patients

Emergency department visit with moderate level of medical decision making

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

This service was performed 23 times for 23 patients

Physician Visit Costs



The typical physician office visit costs for Medicare beneficiaries in this area are: $21.2 for a new patient copayment and $24.29 for an established patient copayment.

The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.

For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.

The prices below reflect the costs for new and established patients in the 97401 ZIP code area.

New Patients Visit Costs *

The most utilized procedure code for new patients office visits is 99203

  • Average New Patient Price $84.82
  • Minimum New Patient Price $54.96
  • Maximum New Patient Price $166.64
  • Average New Patient Copayment $21.2
  • Minimum New Patient Copayment $13.74
  • Maximum New Patient Copayment $41.66

Established Patients Visit Costs *

The most utilized procedure code for established patients office visits is 99214

  • Average Established Patient Price $97.16
  • Minimum Established Patient Price $17.68
  • Maximum Established Patient Price $136.19
  • Average Established Patient Copayment $24.29
  • Minimum Established Patient Copayment $4.42
  • Maximum Established Patient Copayment $34.04

* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.

Reviews for DR. MELISSA S DEFREEST MD

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NPI NPI Number Validation

How NPI Validation Works

The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.

To verify the NPI 1407960388, we treat the final digit (8) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

Digit-by-digit view

Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.

Pos 1
1
Doubled → 2
Pos 2
4
Unchanged
Pos 3
0
Doubled → 0
Pos 4
7
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
6
Unchanged
Pos 7
0
Doubled → 0
Pos 8
3
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
8
Target digit
Regular digit Doubled digit Check digit

Step 1: Double every other digit from the right

Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.

1 → 2 0 → 0 9 → 18 → 9 0 → 0 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 4 + 0 + 7 + 1 + 8 + 6 + 0 + 3 + 1 + 6 + 24 = 62

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1407960388.

Other Providers at the Same Location


The following 10 providers are registered at the same or a nearby location.

Durable Medical Equipment & Medical Supplies
600 COUNTRY CLUB RD STE 100
EUGENE, OR 97401
Physician Assistant (Medical)
600 COUNTRY CLUB RD STE 100
EUGENE, OR 97401
Family Medicine
600 COUNTRY CLUB RD STE 100
EUGENE, OR 97401
Physician Assistant
600 COUNTRY CLUB RD STE 100
EUGENE, OR 97401
Family Medicine
600 COUNTRY CLUB RD STE 100
EUGENE, OR 97401
Clinic/Center (Urgent Care)
600 COUNTRY CLUB RD STE 100
EUGENE, OR 97401
Nurse Practitioner (Family)
600 COUNTRY CLUB RD STE 100
EUGENE, OR 97401
Physician Assistant
600 COUNTRY CLUB RD STE 100
EUGENE, OR 97401
Nurse Practitioner (Family)
600 COUNTRY CLUB RD STE 100
EUGENE, OR 97401
Physician Assistant
600 COUNTRY CLUB RD STE 100
EUGENE, OR 97401

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1407960388, enumerated as an "individual" on August 18, 2006.

The provider is located at 600 COUNTRY CLUB RD STE 100 EUGENE, OR 97401 and the phone number is (541) 463-2390.

Emergency Medicine with taxonomy code 207P00000X.

The provider might be accepting Accepts: Moda Health Plan, Inc., PacificSource Health. Please consult your insurance carrier or call the provider to verify.