BRIAN WILLIAM FIELDS (D.O.) – Internal Medicine Physician, NPI 1245541580

BRIAN WILLIAM FIELDS (D.O.) is a healthcare provider. based in Springfield, Oregon. specializing in INTERNAL MEDICINE. They hold the professional credentials D.O.. They hold a License No. DO154855 (OR). The NPI Number for BRIAN WILLIAM FIELDS (D.O.) is 1245541580

Main info

Male
17 Years Of Experience
Accepts Medicare Assignment
Name
BRIAN WILLIAM FIELDS (D.O.)
NPI
1245541580
Phone
(541) 726-4400
Address
1460 G ST
Enumeration Date
1 July 2010
Last Update Date
15 May 2019

Doctor Profile

Medical School Name
OTHER
Secondary Phone
8054894261
Graduation Year
2009 (17 years ago)
PAC ID
1052558582
Group Practice PAC ID
8325137714
Professional Enrollment ID
I20170308001083
Address ID
CA934203817AR345XXRDXX400
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience44
Completeness75
Years active:15State licenses:1Digital endpointsOther names

2,475 INTERNAL MEDICINE in OR

Provider Addresses for BRIAN WILLIAM FIELDS (D.O.)

  • 1460 G ST

    SPRINGFIELD, OR 974774112

    Phone: (541) 726-4400

    Type: Mailing

  • 3600 NW Samaritan Dr

    Corvallis, OR 973303737

    Phone: (541) 768-5111

    Type: Location

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 $21.

Total Amount is formed as General ($21) + Research ($0) + Ownership ($0) = $21.

Last reported payment date: 2024-04-02 • Largest payer in this snapshot: Abbott Laboratories ($21).

Total Amount

$21

General + Research + Ownership

Payments

1

Total payment records

General Amount

$21

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-04-02

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
Abbott Laboratories$21
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.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2017-03-08

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

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20170308001083IInternal MedicineCATBD

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.

Verify on CMS Revalidation Lookup Tool

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.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99233Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes408232$0
99239Hospital discharge day management, more than 30 minutes289282$0
99232Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes272159$0
99223Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes140138$0
99291Critical care, first 30-74 minutes5342$0
View full utilization report →

Insurance plans in this area (ZIP 97477)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8325137714View full group profile
NameSpecialtyState
Hospitalist, Internal MedicineCA
Internal MedicineHI
Internal MedicineCA
-CA
Family PracticeCA
Internal MedicineCA
Hospitalist, Family PracticeCA
Internal MedicineMI
Family PracticeCA
Family PracticeCA

Reviews

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Frequently asked questions

What is the standard ID for BRIAN WILLIAM FIELDS (D.O.) in the U.S.?
In the U.S., BRIAN WILLIAM FIELDS (D.O.) is identified by NPI 1245541580.
Is BRIAN WILLIAM FIELDS (D.O.)'s NPI status active today?
Active status means BRIAN WILLIAM FIELDS (D.O.)'s NPI record is not deactivated in the public file.
What type of care does BRIAN WILLIAM FIELDS (D.O.) provide?
BRIAN WILLIAM FIELDS (D.O.)'s profile centers on Internal Medicine Physician. Clinical services aligned with this taxonomy classification.
Is BRIAN WILLIAM FIELDS (D.O.) tied to Springfield, Oregon?
If you are local to Springfield, Oregon, BRIAN WILLIAM FIELDS (D.O.) may be relevant to your search.
Can I verify credentials using only NPI?
NPI confirms identity in the directory; licensure and board certification require separate checks.

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