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Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 90 days.

ISAIAH J MAHONEY
NPI 1538080460
Peer Specialist in Seattle, WA

Active since July 24, 2026
861 POPLAR PL S, SEATTLE, WA 98144(844) 987-9274(206) 838-1851 Get Directions Write a Review

NPPES record added: July 24, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Isaiah J Mahoney NPPES

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

ISAIAH J MAHONEY (NPI 1538080460) is an individual peer specialist in Seattle, Washington and active in the NPI registry since July 2026.

NPPES Registry Identity

NPI1538080460
Entity TypeIndividualMale
Primary Taxonomy175T00000X
Provider Legal NameISAIAH J MAHONEY
Location Address861 POPLAR PL SSeattle, WA 98144-2827
Mailing Address861 Poplar Pl SSeattle, WA 98144-2827 · (844) 987-9274 · Fax (206) 838-1851
Phone(844) 987-9274
Fax(206) 838-1851
Sole ProprietorNo
Enumeration DateJuly 24, 2026
NPPES CertifiedJuly 24, 2026
✔ NPI 1538080460 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPeer SpecialistOther Service Providers
Taxonomy Code175T00000X
Definition
Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.
861 POPLAR PL S, Seattle, WA 98144
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Other Providers at the Same Location NPPES 15

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

MR. JAMES D BROWN CPC, SUDPT
Peer Specialist
861 POPLAR PL S
SEATTLE, WA 98144
King County (844) 987-9274
MS. KISELA Q CANADA
Counselor (Addiction (Substance Use Disorder))
861 POPLAR PL S
SEATTLE, WA 98144
King County (844) 987-9274
TIERRA A NGUYEN SUDPT
Student in an Organized Health Care Education/Training Program
861 POPLAR PL S
SEATTLE, WA 98144
King County (844) 987-9274
ELLIS LEE MCDANIEL CDP
Counselor (Addiction (Substance Use Disorder))
861 POPLAR PL S
SEATTLE, WA 98144
King County (844) 987-9274
ASTRO NICHOLAS PITTMAN CDPT
Student in an Organized Health Care Education/Training Program
861 POPLAR PL S
SEATTLE, WA 98144
King County (206) 223-9578
TERESITA P CAPULI MS SUDP
Counselor (Addiction (Substance Use Disorder))
861 POPLAR PL S
SEATTLE, WA 98144
King County (844) 987-9274
MOBILE RADIOLOGY & IMAG
Radiology (Diagnostic Radiology)
861 POPLAR PL S
SEATTLE, WA 98144
King County (206) 568-4440
MISS LIGAYA LOHSTRETER SUDPT
Student in an Organized Health Care Education/Training Program
861 POPLAR PL S
SEATTLE, WA 98144
King County (206) 223-9578

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Isaiah Mahoney's NPI number?

The NPI number for Isaiah Mahoney is 1538080460. It was assigned to this individual provider in the NPPES registry on July 24, 2026.

Where is Isaiah Mahoney located?

Isaiah Mahoney practices at 861 Poplar Pl S, Seattle, WA 98144. The listed phone number is (844) 987-9274.

What is Isaiah Mahoney's specialty?

The primary specialty registered for this NPI is Peer Specialist with taxonomy code 175T00000X.

When was this NPI record last updated?

The NPPES record for Isaiah Mahoney was last updated on July 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 28 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.