DR. MARK DUNCAN MD
NPI 1598713919
Family Medicine in Freeland, WA

Active since May 05, 2006PECOS EnrolledAccepts Medicare Assignment
88.16/100
CMS Quality Rating
5577 VANBARR PL, FREELAND, WA 98249(360) 331-3343 Get Directions Write a Review

NPPES record last updated: April 25, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Apr 12, 2023, Mar 26, 2023 (2 updates tracked since 2023).

About Dr. Mark Duncan Md NPPES

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

DR. MARK DUNCAN MD (NPI 1598713919) is an individual family medicine provider in Freeland, Washington, licensed in Washington (60305379) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of West Virginia University School Of Medicine (1995).

NPPES Registry Identity

NPI1598713919
Entity TypeIndividualMale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MARK DUNCANCredential: MD
Location Address5577 VANBARR PLFreeland, WA 98249-9555
Mailing AddressPo Box 935Freeland, WA 98249-0935 · (360) 331-3343 · Fax (360) 331-3373
Sole ProprietorNo
Medical School CMSWest Virginia University School Of MedicineGraduated 1995
Enumeration DateMay 5, 2006
Last NPPES UpdateApril 25, 20232 updates tracked since enumeration
NPPES CertifiedApril 25, 2023
NPI 1598713919 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses Licensed in WA · 60305379 Licensed in GA · 045063
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
5577 VANBARR PL, Freeland, WA 98249

Accepted 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

Dr. Mark Duncan 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 ID7719123561
PECOS Enrollment IDI20130423000330
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.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98249 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
$88.29 typical visit price
range $57.27 – $172.80
Typical copayment $22.07 (range $14.31 – $43.20)
Most-billed visit code 99203
Established Patient
$100.78 typical visit price
range $18.56 – $141.11
Typical copayment $25.19 (range $4.64 – $35.27)
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.

88.16/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality84.02
Improvement Activities40
Cost81.86

Referred Medical Equipment & Supplies CMS DME claims 5

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
5 suppliers22 claims78 services$5.64 avg. paid by Medicare
Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466
DME-Other DME · category DE005N
1 supplier48 claims48 services$780.46 avg. paid by Medicare
Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$119.41 avg. paid by Medicare
Portable oxygen concentrator, rental E1392
DME-Oxygen and Supplies · category DC002N
1 supplier12 claims12 services$38.23 avg. paid by Medicare
Supply allowance for therapeutic continuous glucose monitor (cgm), includes all supplies and accessories, 1 month supply = 1 unit of service K0553
DME-Other DME · category DE017N
3 suppliers23 claims25 services$193.15 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 6

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

Nurse Practitioner (Family)
5577 VANBARR PL
FREELAND, WA 98249
Internal Medicine
5577 VANBARR PL
FREELAND, WA 98249
Massage Therapist
5577 VANBARR PL
FREELAND, WA 98249
Nurse Practitioner (Family)
5577 VANBARR PL
FREELAND, WA 98249
Nurse Practitioner (Family)
5577 VANBARR PL
FREELAND, WA 98249
Nurse Practitioner (Family)
5577 VANBARR PL
FREELAND, WA 98249

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 Mark Duncan's NPI number?

The NPI number for Mark Duncan is 1598713919. It was assigned to this individual provider in the NPPES registry on May 5, 2006.

Where is Mark Duncan located?

Mark Duncan practices at 5577 Vanbarr Pl, Freeland, WA 98249. The listed phone number is (360) 331-3343.

What is Mark Duncan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Mark Duncan enrolled in Medicare?

Yes. Mark Duncan 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 Mark Duncan accept?

Health plans from PacificSource Health Plans list Mark Duncan 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.

When was this NPI record last updated?

The NPPES record for Mark Duncan was last updated on April 25, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.