DR. BRIAN TIMOTHY LARSEN (M.D.) – Internal Medicine Physician, NPI 1366768533
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
Provider Addresses for DR. BRIAN TIMOTHY LARSEN (M.D.)
620 NW 11TH ST STE M103
HERMISTON, OR 978386941
Phone: (541) 567-5305
Fax: (541) 303-8767
Type: Location
600, Northwest 11th Street, Hermiston, Umatilla County, Oregon, 97838, United States
STE E37
HERMISTON, OR 978388604
Phone: (541) 567-5305
Type: Mailing
600 NW 11TH ST STE E37
HERMISTON, OR 978388604
Phone: (541) 567-5305
Type: Mailing
Good Shepherd Medical Center, 610, Northwest 11th Street, Hermiston, Umatilla County, Oregon, 97838, United States
HERMISTON, OR 978386601
Phone: (541) 567-5305
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 7 Open Payments records for all available years, with a total value of $166.
Total Amount is formed as General ($166) + Research ($0) + Ownership ($0) = $166.
Last reported payment date: 2024-05-29 • Largest payer in this snapshot: ABBVIE INC. ($85).
Total Amount
$166
General + Research + Ownership
Payments
7
Total payment records
General Amount
$166
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-05-29
Latest reported date
Top Companies
Largest payers in this snapshot
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2014-04-22
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20140422001923 | I | Internal Medicine | OR | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
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 97838)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Orthopedic Surgery | WA | |
| Nurse Practitioner | OR | |
| - | OR | |
| - | OR | |
| Nurse Practitioner | AR | |
| Certified Registered Nurse Anesthetist (Crna) | IN | |
| Diagnostic Radiology | UT | |
| Emergency Medicine | CA | |
| General Surgery | OR | |
| Certified Registered Nurse Anesthetist (Crna) | ID |
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