NPPES file of Aug 9, 2026

Samuel John Youssef, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Seattle, WA

Samuel John Youssef, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Seattle, Washington, and NPI 1639330475, issued on Jun 24, 2008. Check the license (Washington MD 6014714, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639330475
Name
Samuel John Youssef
Credential
MD
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License numbers
MD 6014714 WA
ML20008340 WA
Self-reported in NPPES; status is on the state search
Practice location
1600 E Jefferson St, Seattle, WA 98122
Phone
(206) 320-7300
Enumerated
Jun 24, 2008
Record last updated
Apr 30, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(206) 320-4698
Medicare enrollment
Enrolled (PECOS I20130402000450); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1600 E Jefferson St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Jenna Bailey, NDNaturopath1326592304
  2. Glenn Barnhart, MDThoracic Surgery (Cardiothoracic Vascular Surgery) Physician1568464154
  3. Joycelyn Becenti, PA-CPhysician Assistant1699841114
  4. Amanda Boulis, PAPhysician Assistant1992973044
  5. Marvin Brooke, MDPhysical Medicine & Rehabilitation Physician1750336913
  6. Philip Capp, MDFamily Medicine Physician1427161744

Verify Samuel John Youssef in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD 6014714
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Washington license search

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74% fewer Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024

26 Medicare Part D claims for 19 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Samuel Youssef26
  2. Specialty average101

Most prescribed

  1. Chlorhexidine Gluconate15 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $285.80

4 payments; by number, the most common kind was food and beverage; the largest payer was Zimmer Biomet Holdings, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Samuel Youssef$285.80
  2. Specialty average$7,828.84

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Swedish Health ServicesEdmonds, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Samuel John Youssef among 120 thoracic surgery (cardiothoracic vascular surgery) physician records in Washington

Samuel John Youssef, MD is one of 120 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Washington. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 56% of them.

  • NPI issued2008 · 56% of these records are older, 38% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2004 · median 2002 among the 77 with a school on file
  • Record last updated2021 · 65% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Washington

There are 120 thoracic surgery (cardiothoracic vascular surgery) physician records in Washington.

The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes

  1. Glenn Barnhart, MDSeattle, WA 981221568464154
  2. Roland Hernandez, MD, JDSeattle, WA 981221720213580
  3. Richard Lee, MDSeattle, WA 981221437476934
  4. Eric Lehr, M.D., PHDSeattle, WA 981221265693154
  5. Dev Manhas, MDSeattle, WA 981221164432605
  6. Maude Rancourt, M.D., F.R.C.S.C.Seattle, WA 981221962259481
  7. Patrick Ryan, MDSeattle, WA 981221659328078
  8. Joseph Teply, MDSeattle, WA 981221578573168

Common questions

What is Samuel John Youssef, MD's NPI number?

Samuel John Youssef, MD's National Provider Identifier (NPI) is 1639330475, issued on Jun 24, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Samuel John Youssef, MD located?

The NPPES record lists a practice address at 1600 E Jefferson St, Seattle, WA, 98122. Phone: (206) 320-7300. Providers update this record themselves, so call before visiting.

How can I verify Samuel John Youssef, MD's license?

NPPES lists Washington license number MD 6014714, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Samuel John Youssef, MD prescribe under Medicare Part D?

In 2024, Samuel John Youssef, MD had 26 Medicare Part D claims for 19 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.