Active NPIIndividual provider

Mohamed Alassas, MD

Surgery, Surgical Oncology in Seattle, Washington

NPI Number1871609933
Practice location
1221 Madison St Ste 1401, Seattle, WA 98104-1360
Fax
206-386-6706
Last updated
July 17, 2026

Mohamed Alassas, MD is a Surgery, Surgical Oncology based in Seattle, WA. Mohamed Alassas, MD holds the professional credentials of MD. The NPI number for Mohamed Alassas, MD is 1871609933 and holds license No. MD60693493 (WA). The current practice location address is 1221 Madison St Ste 1401, Seattle, WA 98104-1360 and the office can be reached by phone at 206-386-6700 and by fax at 206-386-6706. The NPI was assigned on August 22, 2006 and the record was last updated in NPPES on July 17, 2026.

●Provider Profile Details

NPI Number
1871609933
Provider Name
Mohamed Alassas
Credential
MD
Entity Type
Individual (Type 1 NPI)
Gender
Male
Primary Taxonomy
Surgery, Surgical Oncology · 2086X0206X
Sole Proprietor
No
Enumeration Date
August 22, 2006
Last Update Date
July 17, 2026
Certification Date
July 17, 2026
NPI Status
Active

◉Business Practice Location Address

Address
1221 Madison St Ste 1401
Seattle, WA 98104-1360
ZIP
98104-1360
Country
US
Phone Number
206-386-6700
Fax Number
206-386-6706

Get directions →

✉Business Mailing Address

Address
Po Box 25608
Salt Lake City, UT 84125-0608
City
Salt Lake City
State
UT
ZIP
84125-0608
Phone Number
206-320-4476
Fax Number
206-568-7043

✎Taxonomy & License Information

TaxonomyCodePrimaryLicenseState
Surgery208600000XNoMD60693493WA
Surgery, Surgical Oncology2086X0206XYesMD60693493WA

#Other Provider Identifiers

No legacy or other identifiers (Medicaid, Medicare or plan IDs) are on file for this provider.

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?Frequently Asked Questions

What is the NPI number of Mohamed Alassas, MD?

The NPI number of Mohamed Alassas, MD is 1871609933. It was assigned on August 22, 2006 and is currently active in the NPPES registry.

What is the specialty of Mohamed Alassas, MD?

Mohamed Alassas, MD is registered under the primary taxonomy Surgery, Surgical Oncology (code 2086X0206X) and holds license No. MD60693493 (WA).

Where does Mohamed Alassas, MD practice?

The practice location is 1221 Madison St Ste 1401, Seattle, WA 98104-1360. The office can be reached at 206-386-6700 (phone) or 206-386-6706 (fax).

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit identification number issued to health care providers in the United States by the Centers for Medicare and Medicaid Services (CMS). It is used in HIPAA standard transactions.

How do I verify this NPI record?

This record is sourced from the public NPPES NPI Registry maintained by CMS. You can confirm it by searching NPI 1871609933 directly on the NPPES registry website at npiregistry.cms.hhs.gov.

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