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REGAN MELISSA DUFFY MD
NPI 1487876827
Internal Medicine - Medical Oncology in Portland, OR

Active since May 03, 2007PECOS EnrolledAccepts Medicare Assignment
99.99/100
CMS Quality Rating
9135 SW BARNES RD, SUITE 261, PORTLAND, OR 97225(503) 216-6300 Get Directions Write a Review

NPPES record last updated: May 2, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Regan Melissa Duffy Md NPPES

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

REGAN MELISSA DUFFY MD (NPI 1487876827) is an individual medical oncology provider in Portland, Oregon, licensed in Oregon (MD28919) and active in the NPI registry since May 2007. She is enrolled in Medicare PECOS, is affiliated with Providence St Vincent Medical Center, and is a graduate of Oregon Health Sciences University School Of Medicine (2007).

NPPES Registry Identity

NPI1487876827
Entity TypeIndividualFemale
Primary Taxonomy207RX0202X
Provider Legal NameREGAN MELISSA DUFFYCredential: MD
Location Address9135 SW BARNES RD, SUITE 261Portland, OR 97225-6784
Mailing AddressPo Box 3158Portland, OR 97208-3158
Phone(503) 216-6300
Sole ProprietorNo
Medical School CMSOregon Health Sciences University School Of MedicineGraduated 2007
Enumeration DateMay 3, 2007
Last NPPES UpdateMay 2, 2025
NPPES CertifiedMay 2, 2025
✔ NPI 1487876827 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Medical OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207RX0202X
License✔ Licensed in OR · MD28919
Definition
An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and radiotherapists on other treatments for cancer.
Also ListedInternal MedicineTaxonomy 207R00000X · License MD28919 (OR)
Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License MD28919 (OR)
9135 SW BARNES RD, Portland, OR 97225
Open in Google Maps ↗

Other Identifiers 1

Medicaid5500654736OR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Providence Health Plan.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Regan Melissa Duffy 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 ID4082869656
PECOS Enrollment IDI20130806000605
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.

Areas of Expertise CMS Part B claims 3

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 high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
197 services72 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
72 services42 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
20 services20 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Providence St Vincent Medical Center

Acute Care Hospitals · Portland, OR
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380004
Location9205 SW Barnes RoadPortland, OR 97225 · Washington County
Emergency services Birthing friendly

Providence Newberg Medical Center

Acute Care Hospitals · Newberg, OR
3/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number380037
Location1001 Providence DriveNewberg, OR 97132 · Yamhill County
Emergency services Birthing friendly

Providence Portland Medical Center

Acute Care Hospitals · Portland, OR
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number380061
Location4805 NE Glisan StreetPortland, OR 97213 · Multnomah County
Emergency services Birthing friendly

Providence Seaside Hospital

Critical Access Hospitals · Seaside, OR
OwnershipVoluntary non-profit - Church
CMS Certification Number381303
Location725 S Wahanna RoadSeaside, OR 97138 · Clatsop County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 97225 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
$176.88 typical visit price
range $58.99 – $176.88
Typical copayment $44.22 (range $14.74 – $44.22)
Most-billed visit code 99205
Established Patient
$103.51 typical visit price
range $19.32 – $144.79
Typical copayment $25.87 (range $4.83 – $36.19)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

99.99/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality96.41
Promoting Interoperability100
Improvement Activities40
Cost100

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; gravity fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4036
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims365 services$5.53 avg. paid by Medicare
Enteral formula, nutritionally complete, calorically dense (equal to or greater than 1.5 kcal/ml) with intact nutrients, includes proteins, fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4152
Other-Enteral and Parenteral · category OB006N
1 supplier12 claims6,143 services$0.36 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

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

MEGAN LOCHER M.D.
Obstetrics & Gynecology
9135 SW BARNES RD, SUITE 761
PORTLAND, OR 97225
Washington County (503) 216-2602
GLYKERIA MANIS LCSW
Social Worker (Clinical)
9135 SW BARNES RD
PORTLAND, OR 97225
Washington County (503) 216-1234
MS. DONNA JEAN MAEBORI PT
Physical Therapist
9135 SW BARNES RD, SUITE 362
PORTLAND, OR 97225
Washington County (503) 216-8112
PROVIDENCE ST VINCENT MEDICAL CENTER
Clinic/Center
9135 SW BARNES RD, SUITE 161
PORTLAND, OR 97225
Washington County (503) 216-0246
DR. BETHANY MICHELLE MCCLENATHAN M.D.
Psychiatry & Neurology (Neurocritical Care)
9135 SW BARNES RD, SUITE 461
PORTLAND, OR 97225
Washington County (503) 216-1150
DR. DANIEL B BROWN MD
Ophthalmology
9135 SW BARNES RD, SUITE 961
PORTLAND, OR 97225
Washington County (503) 292-0848
DR. AMIT KANSARA MD
Psychiatry & Neurology (Vascular Neurology)
9135 SW BARNES RD, STE 461
PORTLAND, OR 97225
Washington County (503) 216-1150
MS. CORRINE MARY YOUNG M.S., CCC-SLP
Speech-Language Pathologist
9135 SW BARNES RD
PORTLAND, OR 97225
Washington County (503) 216-2339

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Regan Duffy's NPI number?

The NPI number for Regan Duffy is 1487876827. It was assigned to this individual provider in the NPPES registry on May 3, 2007.

Where is Regan Duffy located?

Regan Duffy practices at 9135 SW Barnes Rd Suite 261, Portland, OR 97225. The listed phone number is (503) 216-6300.

What is Regan Duffy's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Medical Oncology, with taxonomy code 207RX0202X.

Is Regan Duffy enrolled in Medicare?

Yes. Regan Duffy is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Regan Duffy accept?

Health plans from Providence Health Plan list Regan Duffy as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Regan Duffy affiliated with any hospitals?

According to CMS data, Regan Duffy is affiliated with Providence St Vincent Medical Center, Providence Newberg Medical Center, Providence Portland Medical Center and Providence Seaside Hospital.

When was this NPI record last updated?

The NPPES record for Regan Duffy was last updated on May 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.