NPPES file of Aug 9, 2026

Adel Melhem Assaad, M.D.

Anatomic Pathology Physician · Seattle, WA

Adel Melhem Assaad, M.D. is an anatomic pathology physician with a practice address in Seattle, Washington, and NPI 1669509071, issued on Feb 27, 2007. Check the license (Washington MD00048551, as entered in NPPES) on the Washington Medical Commission; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1669509071
Name
Adel Melhem Assaad
Credential
M.D.
Primary taxonomy
Anatomic Pathology Physician 207ZP0101X
License number
MD00048551 WA
Self-reported in NPPES; status is on the state search
Practice location
1100 9TH Ave, Seattle, WA 98101
Phone
(206) 583-6596
Enumerated
Feb 27, 2007
Record last updated
Apr 8, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicaid IDs
8503781 WA
MD6901W AK
Medicare enrollment
Enrolled (PECOS I20071218000278); accepts Medicare assignment
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 1100 9TH Ave

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

  1. Barry Aaronson, MDHospitalist Physician1952418345
  2. David Aboulafia, MDHematology & Oncology Physician1043269392
  3. Deborah Abrams, M.D.Hematology & Oncology Physician1902974835
  4. Alvin Aceron, ARNPAdult Health Nurse Practitioner1639488562
  5. Ream AdeebAdult Health Nurse Practitioner1760868855
  6. Steven Adler, MDDiagnostic Ultrasound Physician1639108046

Verify Adel Melhem Assaad in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00048551
    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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Adel Melhem Assaad among 64 anatomic pathology physician records in Washington

Adel Melhem Assaad, M.D. is one of 64 anatomic pathology physician records with a practice address in Washington. 58% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2007, is newer than 34% of them.

  • NPI issued2007 · 34% of these records are older, 52% newer
  • In a Medicare fileNo · 58% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2000 · median 2006 among the 36 with a school on file
  • Record last updated2015 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ZP0101X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anatomic Pathology Physician providers in Washington

There are 64 anatomic pathology physician records in Washington. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 anatomic pathology physician records with the nearest ZIP codes

  1. Jey-Hsin ChenSeattle, WA 981041336263896
  2. Cheung Chhieng, MDSeattle, WA 981041972545135
  3. Daniel Child, MD, PHDSeattle, WA 981041093343758
  4. Patrick Cimino, M.D., PH.D.Seattle, WA 981041174810774
  5. Michael Haffner, M.D.Seattle, WA 981041629455464
  6. Riley O'Hara, MDSeattle, WA 981041821593542
  7. Edgardo Parrilla Castellar, M.D., PH.D.Seattle, WA 981041245378223
  8. Steven Quay, MD, PHD, FCAPSeattle, WA 981041407149792

Common questions

What is Adel Melhem Assaad, M.D.'s NPI number?

Adel Melhem Assaad, M.D.'s National Provider Identifier (NPI) is 1669509071, issued on Feb 27, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Adel Melhem Assaad, M.D. located?

The NPPES record lists a practice address at 1100 9TH Ave, Seattle, WA, 98101. Phone: (206) 583-6596. Providers update this record themselves, so call before visiting.

How can I verify Adel Melhem Assaad, M.D.'s license?

NPPES lists Washington license number MD00048551, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.