Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Northwest Medical Specialties, Pllc

Hematology & Oncology Physician in Puyallup, WA · enumerated 2015 · authorized official Mark Nelson, Ceo.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1588052245

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Registry record

Entity type Organization (Type 2)

Legal business name Northwest Medical Specialties, Pllc

Practice address 2920 S Meridian, Suite 100, Puyallup, WA, 98373

Phone (253) 841-4296

Fax (253) 841-2435

Enumeration date Jan 5, 2015

Last updated in NPPES Jan 5, 2015

Taxonomy & classification

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License MD60274322 (WA) Primary

Authorized official

Name Mark Nelson

Title Ceo

Phone (253) 428-8700

Other identifiers

Identifier	Type	State	Issuer
MD60274322	Other	WA	LICENSE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How current is this record?

Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2015-01-05. Verify at npiregistry.cms.hhs.gov.

Where is Northwest Medical Specialties, Pllc located?

The practice location on file with NPPES is in Puyallup, WA.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-01-05.