DR. THOMAS A ONSTAD (M.D.) – Specialist, NPI 1639155773

DR. THOMAS A ONSTAD (M.D.) is a healthcare provider. based in Eugene, Oregon. specializing in Specialist. They hold the professional credentials M.D.. They hold a License No. MD07372 (OR). The NPI Number for DR. THOMAS A ONSTAD (M.D.) is 1639155773

Main info

Male
Name
DR. THOMAS A ONSTAD (M.D.)
NPI
1639155773
Phone
(541) 343-1629
Address
923 COUNTRY CLUB RD
Enumeration Date
20 December 2005
Last Update Date
8 July 2007
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

Loading map...

Provider Addresses for DR. THOMAS A ONSTAD (M.D.)

  • 923, Country Club Road, Eugene, Lane County, Oregon, 97401, United States

    SUITE 100

    EUGENE, OR 974012296

    Phone: (541) 343-1629

    Fax: (541) 485-5944

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

Loading prescription activity...

Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

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 97401)

Loading plans...

Reviews

All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.

No reviews yet. Be the first to share your experience — your opinion helps families compare providers.

Frequently asked questions

Does DR. THOMAS A ONSTAD (M.D.) have a public NPI I can cite?
Public records show DR. THOMAS A ONSTAD (M.D.) under NPI 1639155773.
Should I treat DR. THOMAS A ONSTAD (M.D.) as an active provider?
Patients and plans typically see DR. THOMAS A ONSTAD (M.D.) as active in the national extract.
How should patients interpret DR. THOMAS A ONSTAD (M.D.)'s specialty?
The extract shows Other Service Providers for DR. THOMAS A ONSTAD (M.D.). Clinical services aligned with this taxonomy classification.
Which community is linked to DR. THOMAS A ONSTAD (M.D.)?
DR. THOMAS A ONSTAD (M.D.) shows a connection to Eugene, Oregon in registry-derived data.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.

Similar Providers

South Garden Way, Eugene, Lane County, Oregon, 97403-1221, United States
NPI: 1306841275
1200, Hilyard Street, Eugene, Lane County, Oregon, 97401, United States
NPI: 1649275181
1200, Hilyard Street, Eugene, Lane County, Oregon, 97401, United States
NPI: 1346245883
1200, Hilyard Street, Eugene, Lane County, Oregon, 97401, United States
NPI: 1407851942
Hilyard Street, Eugene, Lane County, Oregon, 97401, United States
NPI: 1396740841
2550, Willakenzie Road, Eugene, Lane County, Oregon, 97401, United States
NPI: 1275530297
PO BOX 10861
NPI: 1871584862
923, Country Club Road, Eugene, Lane County, Oregon, 97401, United States
NPI: 1194701268

JOHN M TERHES (MD)

Surgery Physician
360, South Garden Way, Eugene, Lane County, Oregon, 97401, United States
NPI: 1114906443