DR. MERLE DEAN WILLIAMSON (M.D.) – Addiction Medicine (Anesthesiology) Physician, NPI 1467465823

DR. MERLE DEAN WILLIAMSON (M.D.) is a healthcare provider. based in Happy valley, Oregon. specializing in Addiction Medicine (Anesthesiology) Physician. They hold the professional credentials M.D.. They hold a License No. MD14580 (OR). The NPI Number for DR. MERLE DEAN WILLIAMSON (M.D.) is 1467465823

Main info

Male
Name
DR. MERLE DEAN WILLIAMSON (M.D.)
NPI
1467465823
Phone
(503) 880-4852
Address
11167 SE VALLEY VIEW TER
Enumeration Date
15 August 2006
Last Update Date
29 June 2012
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience52
Completeness75
Years active:19State licenses:1Digital endpointsOther names

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Provider Addresses for DR. MERLE DEAN WILLIAMSON (M.D.)

  • 11167, Southeast Valley View Terrace, Happy Valley, Clackamas County, Oregon, 97086, United States

    HAPPY VALLEY, OR 970869715

    Phone: (503) 880-4852

    Fax: (503) 698-5268

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $29.

Total Amount is formed as General ($29) + Research ($0) + Ownership ($0) = $29.

Last reported payment date: 2023-03-09 • Largest payer in this snapshot: Indivior Inc. ($29).

Total Amount

$29

General + Research + Ownership

Payments

1

Total payment records

General Amount

$29

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-03-09

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Indivior Inc.$29
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

No Medicare enrollment or revalidation data available for this provider in our database.

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

No Medicare fee-for-service utilization data available for this provider in our database.

Insurance plans in this area (ZIP 97086)

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Reviews

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Frequently asked questions

Does DR. MERLE DEAN WILLIAMSON (M.D.) share an NPI with anyone else?
NPI numbers are unique to each provider or organization — DR. MERLE DEAN WILLIAMSON (M.D.) uses 1467465823.
Does CMS list DR. MERLE DEAN WILLIAMSON (M.D.) as active?
Yes — DR. MERLE DEAN WILLIAMSON (M.D.) is active in the NPI listing used on this page.
What taxonomy line describes DR. MERLE DEAN WILLIAMSON (M.D.)?
For research purposes, treat DR. MERLE DEAN WILLIAMSON (M.D.) as Addiction Medicine (Anesthesiology) Physician in this dataset. Clinical services aligned with this taxonomy classification.
Does DR. MERLE DEAN WILLIAMSON (M.D.) list a practice location?
Patients near Happy Valley, Oregon may find DR. MERLE DEAN WILLIAMSON (M.D.) in results; validate coverage separately.
Is the information about DR. MERLE DEAN WILLIAMSON (M.D.) up to date?
Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."

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