Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARY MASAI
NPI 1770127607
Registered Nurse in Seattle, WA

Q: What is Mary Masai's NPI number?

The NPI number for Mary Masai is 1770127607. It was assigned to this individual provider in the NPPES registry on November 4, 2019.

Q: What is Mary Masai's specialty?

The primary specialty registered for this NPI is Registered Nurse with taxonomy code 163W00000X.

Q: When was this NPI record last updated?

The NPPES record for Mary Masai was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since November 04, 2019

1701 18TH AVE S, SEATTLE, WA 98144(253) 833-7444 Get Directions Write a Review

NPPES record last updated: August 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Aug 13, 2026, Nov 4, 2019 (2 updates tracked since 2019).

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About Mary Masai NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARY MASAI (NPI 1770127607) is an individual registered nurse in Seattle, Washington, licensed in Washington (RN.RN.61675719) and active in the NPI registry since November 2019. She maintains a secondary practice location in Kent.

NPPES Registry Identity

NPI1770127607

Entity TypeIndividualFemale

Primary Taxonomy163W00000X

Provider Legal NameMARY MASAI

Location Address1701 18TH AVE SSeattle, WA 98144-4317

Mailing Address325 W Gowe StKent, WA 98032-5892 · (253) 833-7444 · Fax (253) 661-8631

Phone(253) 833-7444

Sole ProprietorNo

Enumeration DateNovember 4, 2019

Last NPPES UpdateAugust 13, 20262 updates tracked since enumeration

NPPES CertifiedAugust 13, 2026

✔ NPI 1770127607 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRegistered NurseNursing Service Providers

Taxonomy Code163W00000X

License✔ Licensed in WA · RN.RN.61675719

Definition

(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span.

1701 18TH AVE S, Seattle, WA 98144

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Secondary Practice Location 1

Location 1505 Washington Ave SKent, WA 98032-5709 · Phone (253) 833-7444 · Fax (253) 661-8631

Other Identifiers 1

Medicaid2143050WA

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

CATHERINE NJOGU

Counselor