DR. JOHN THOMAS HASSAPIS (MD) – Surgery Physician, NPI 1992709802

DR. JOHN THOMAS HASSAPIS (MD) is a healthcare provider. based in Coupeville, Washington. specializing in GENERAL SURGERY. They hold the professional credentials MD. They hold a License No. MD60466656 (WA). The NPI Number for DR. JOHN THOMAS HASSAPIS (MD) is 1992709802

Main info

Male
Sole Proprietor
36 Years Of Experience
Accepts Medicare Assignment
Name
DR. JOHN THOMAS HASSAPIS (MD)
NPI
1992709802
Phone
(360) 678-1874
Address
PO BOX 145
Enumeration Date
8 June 2005
Last Update Date
25 October 2022

Doctor Profile

Medical School Name
LOYOLA UNIVERSITY OF CHICAGO, STRITCH SCHOOL OF MEDICINE
Secondary Phone
3606756648
Graduation Year
1990 (36 years ago)
PAC ID
6305917873
Group Practice PAC ID
1658280680
Professional Enrollment ID
I20201221002527
Address ID
WA982773740OA275XXDRXX403
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience69
Completeness75
Years active:21State licenses:1Digital endpointsOther names

826 GENERAL SURGERY in WA

Provider Addresses for DR. JOHN THOMAS HASSAPIS (MD)

  • PO BOX 145

    COUPEVILLE, WA 982390145

    Phone: (360) 678-1874

    Fax: (360) 678-7037

    Type: Mailing

  • 205 S MAIN ST STE A

    COUPEVILLE, WA 982393635

    Phone: (360) 678-6799

    Fax: (360) 678-6654

    Type: Location

  • PO BOX 1007

    COUPEVILLE, WA 982391007

    Phone: (360) 544-6450

    Fax: (360) 809-6006

    Type: Mailing

  • 205 S MAIN ST STE B

    COUPEVILLE, WA 982393635

    Phone: (360) 544-6450

    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 $31.

Total Amount is formed as General ($31) + Research ($0) + Ownership ($0) = $31.

Last reported payment date: 2023-10-23 • Largest payer in this snapshot: Braintree Laboratories, Inc. ($31).

Total Amount

$31

General + Research + Ownership

Payments

1

Total payment records

General Amount

$31

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2023-10-23

Latest reported date

Top Companies

Largest payers in this snapshot

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: 2020-12-21

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 2 Medicare enrollment records; no due dates published yet.

Enrollment records

2

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
I20140710000866IGeneral SurgeryWATBD
I20201221002527IGeneral SurgeryMTTBD

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
99203New patient office or other outpatient visit, 30-44 minutes5454$0
G0121Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk2323$0
45380Biopsy of large bowel using a flexible endoscope1919$0
99204New patient office or other outpatient visit, 45-59 minutes1717$0
99214Established patient office or other outpatient visit, 30-39 minutes1614$0
View full utilization report →

Insurance plans in this area (ZIP 98239)

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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: 1658280680View full group profile
NameSpecialtyState
Physician AssistantWA
-WA
Clinical Social WorkerWA
Diagnostic Radiology, Interventional RadiologyWA
Diagnostic RadiologyAK
Physician AssistantTN
Nurse PractitionerFL
Nurse PractitionerCO
Emergency MedicineWA
Nurse PractitionerWA

Reviews

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Frequently asked questions

What NPI should I save for DR. JOHN THOMAS HASSAPIS (MD)?
Save NPI 1992709802 if you need a stable reference for DR. JOHN THOMAS HASSAPIS (MD).
Is DR. JOHN THOMAS HASSAPIS (MD)'s enrollment marked active?
An active flag here means the NPI record is not in a deactivated state.
What does DR. JOHN THOMAS HASSAPIS (MD) treat or focus on?
Patients typically see DR. JOHN THOMAS HASSAPIS (MD) under the specialty Surgery Physician. Clinical services aligned with this taxonomy classification.
Does DR. JOHN THOMAS HASSAPIS (MD) practice in Washington?
You will see Coupeville, Washington on file for DR. JOHN THOMAS HASSAPIS (MD) alongside any extra practice locations.
Is DR. JOHN THOMAS HASSAPIS (MD) a real provider?
This page reflects official NPPES data for NPI 1992709802. Always confirm identity and privileges with the practice and licensing boards.

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