DR. JAMES PAPATHANASIOU (M.D.) – Hospitalist Physician, NPI 1053300160

DR. JAMES PAPATHANASIOU (M.D.) is a healthcare provider. based in Seattle, Washington. specializing in HOSPITALIST. They hold the professional credentials M.D.. They hold a License No. MD00041032 (WA). The NPI Number for DR. JAMES PAPATHANASIOU (M.D.) is 1053300160

Main info

Male
28 Years Of Experience
Accepts Medicare Assignment
Name
DR. JAMES PAPATHANASIOU (M.D.)
NPI
1053300160
Phone
(206) 329-1760
Address
1145 BROADWAY
Enumeration Date
20 October 2005
Last Update Date
28 October 2022

Doctor Profile

Medical School Name
UNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Secondary Phone
2063862202
Graduation Year
1998 (28 years ago)
PAC ID
9537176805
Group Practice PAC ID
9032022579
Professional Enrollment ID
I20221003003028
Address ID
WA981224379SE747XXBROA200

Contacts

SOAP Endpoint
https://careepicwa.kp.org:14430/Interconnect-CE-PRD/wcf/epic.community.hie/xcpdrespondinggatewaysync.svc/ceq
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

1,188 HOSPITALIST in WA

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Provider Addresses for DR. JAMES PAPATHANASIOU (M.D.)

  • 1145, Broadway, First Hill, Seattle, King County, Washington, 98138, United States

    SEATTLE, WA 981224201

    Phone: (206) 329-1760

    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)

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: 2022-10-03

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
I20221003003028IHospitalistWATBD

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.

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

Insurance plans in this area (ZIP 98122)

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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: 9032022579View full group profile

Reviews

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Frequently asked questions

What is DR. JAMES PAPATHANASIOU (M.D.)'s NPI number?
DR. JAMES PAPATHANASIOU (M.D.)'s NPI is 1053300160 — the number used across U.S. healthcare to identify this provider.
Active or inactive — what applies to DR. JAMES PAPATHANASIOU (M.D.)?
You should see DR. JAMES PAPATHANASIOU (M.D.) as active in CMS-hosted NPPES data.
How would a patient describe DR. JAMES PAPATHANASIOU (M.D.)'s focus?
For DR. JAMES PAPATHANASIOU (M.D.), the primary taxonomy reads as Hospitalist Physician. Clinical services aligned with this taxonomy classification.
Is DR. JAMES PAPATHANASIOU (M.D.) associated with Seattle?
Public fields place DR. JAMES PAPATHANASIOU (M.D.) around Seattle, Washington. Always confirm the exact site before visiting.
Does inactive status remove historical data?
Historical rows can remain visible after status changes — read the dates carefully.

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