Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MR. THOMAS SCOTT DUNCAN MD
NPI 1093770893
Family Medicine in Astoria, OR

Q: What is Thomas Duncan's NPI number?

The NPI number for Thomas Duncan is 1093770893. It was assigned to this individual provider in the NPPES registry on April 18, 2006.

Q: What is Thomas Duncan's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Thomas Duncan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days 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 April 18, 2006PECOS Enrolled

595 18TH ST, ASTORIA, OR 97103(503) 325-9131(503) 325-8797 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 23, 2026.

On this page

About Mr. Thomas Scott Duncan Md NPPES

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

MR. THOMAS SCOTT DUNCAN MD (NPI 1093770893) is an individual family medicine provider in Astoria, Oregon, licensed in Oregon (MD09168) and active in the NPI registry since April 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1093770893

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameMR. THOMAS SCOTT DUNCANCredential: MD

Location Address595 18TH STAstoria, OR 97103

Mailing Address595 18th StAstoria, OR 97103 · (503) 325-9131 · Fax (503) 325-8797

Phone(503) 325-9131

Fax(503) 325-8797

Sole ProprietorNo

Enumeration DateApril 18, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1093770893 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in OR · MD09168

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.

595 18TH ST, Astoria, OR 97103

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Other Identifiers 1

Medicaid048140OR

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, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mr. Thomas Scott Duncan Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 97103 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.

Referred Medical Equipment & Supplies CMS DME claims 11

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

6 suppliers31 claims52 services$5.86 avg. paid by Medicare

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

2 suppliers13 claims13 services$38.01 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

2 suppliers13 claims78 services$2.61 avg. paid by Medicare

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260

DME-Hospital Beds · category DB000N

1 supplier13 claims13 services$79.35 avg. paid by Medicare

Patient lift, hydraulic or mechanical, includes any seat, sling, strap(s) or pad(s) E0630

DME-Other DME · category DE000N

1 supplier11 claims11 services$57.09 avg. paid by Medicare

Wheelchair accessory, headrest, cushioned, any type, including fixed mounting hardware, each E0955

DME-Wheelchairs · category DD021N

1 supplier15 claims15 services$14.24 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 2

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

THOMAS S. DUNCAN

General Practice

595 18TH ST
ASTORIA, OR 97103

Clatsop County (503) 325-9131

MS. SUSAN L SKINNER CNM CFNP

Nurse Practitioner

595 18TH ST
ASTORIA, OR 97103

Clatsop County (503) 325-9131

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 Thomas Duncan's NPI number?

The NPI number for Thomas Duncan is 1093770893. It was assigned to this individual provider in the NPPES registry on April 18, 2006.

Where is Thomas Duncan located?

Thomas Duncan practices at 595 18th St, Astoria, OR 97103. The listed phone number is (503) 325-9131.

What is Thomas Duncan's specialty?

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

Is Thomas Duncan enrolled in Medicare?

Yes. Thomas Duncan is registered in the Medicare PECOS enrollment system.

What insurance does Thomas Duncan accept?

Health plans from Moda Health Plan, Inc. and PacificSource Health Plans list Thomas 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 Thomas Duncan was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 43 days 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.