TREFAN ARCHIBALD (MD) – Critical Care Medicine (Anesthesiology) Physician, NPI 1174840508

TREFAN ARCHIBALD (MD) is a healthcare provider. based in Seattle, Washington. specializing in ANESTHESIOLOGY. They hold the professional credentials MD. They hold a License No. MD60344868 (WA). The NPI Number for TREFAN ARCHIBALD (MD) is 1174840508

Main info

Male
16 Years Of Experience
Accepts Medicare Assignment
Name
TREFAN ARCHIBALD (MD)
NPI
1174840508
Phone
(206) 543-3000
Address
UNIVERSITY OF WASHINGTON
Enumeration Date
25 April 2010
Last Update Date
4 August 2020

Doctor Profile

Medical School Name
UNIVERSITY OF COLORADO SCHOOL OF MEDICINE, DENVER
Secondary Phone
4256733760
Graduation Year
2010 (16 years ago)
PAC ID
3173761178
Group Practice PAC ID
2961399290
Professional Enrollment ID
I20130604000141
Address ID
WA980268028ED7320XSWXX401
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience56
Completeness75
Years active:16State licenses:1Digital endpointsOther names

1,514 ANESTHESIOLOGY in WA

Provider Addresses for TREFAN ARCHIBALD (MD)

  • UNIVERSITY OF WASHINGTON

    1959 NE PACIFIC STREET, BOX 356421

    SEATTLE, WA 981956421

    Phone: (206) 543-3000

    Type: Mailing

  • 325 9TH AVE

    SEATTLE, WA 981042420

    Phone: (206) 744-3059

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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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.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2013-06-04

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
I20130604000141IAnesthesiologyWATBD

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
99291Critical care, first 30-74 minutes2011$0
View full utilization report →

Insurance plans in this area (ZIP 98195)

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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: 2961399290View full group profile
NameSpecialtyState
-WA
A N E S T H E S I O L O G YWA
A N E S T H E S I O L O G YWA
A N E S T H E S I O L O G YGA
-UT
-WA
-UT
-WA
A N E S T H E S I O L O G YWA
A N E S T H E S I O L O G YWA

Reviews

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Frequently asked questions

Where can patients find TREFAN ARCHIBALD (MD)'s NPI?
You can confirm TREFAN ARCHIBALD (MD) with NPI 1174840508; it appears in the national provider directory.
Is TREFAN ARCHIBALD (MD) currently active in the NPI registry?
CMS-published data lists TREFAN ARCHIBALD (MD) as an active registrant.
What does TREFAN ARCHIBALD (MD) treat or focus on?
Patients typically see TREFAN ARCHIBALD (MD) under the specialty Critical Care Medicine (Anesthesiology) Physician. Clinical services aligned with this taxonomy classification.
Where is TREFAN ARCHIBALD (MD)'s primary listing?
We display Seattle, Washington because that is what the record indicates for TREFAN ARCHIBALD (MD).
Does Medicare enrollment show here?
Medicare enrollment screens are separate from the basic NPI extract shown here.

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