MARY ANN M. MERCADO – NPI #1518729391
Social Worker

MARY ANN MERCADO is a social worker located in SEATTLE, WA. NPPES recently assigned the NPI number 1518729391 to MARY ANN MERCADO on January 26, 2024. It is a Type-1 NPI, indicating this NPI number is associated with an individual. The primary taxonomy selected by this provider is 104100000X from the Health Care Provider Taxonomy code set, which is classified as Social Worker.

Use the NPI data found here to bill health insurance companies, identify providers enrolled in Medicare and Medicaid services or other HIPAA compliant transactions. See the complete NPI profile for MARY ANN MERCADO below.

NPI Profile for

NPI Number

(about 5 weeks ago)
Entity Type
Type-1  Individual (Female)
Legal Name
Primary location
325 9TH AVE
SEATTLE, WA 98104-2499
Phone: (206) 744-4736 Fax:
Mailing address
1701 121ST ST SE APT D304
EVERETT, WA 98208-5979
Phone: (909) 849-0725 Fax:
Sole Proprietor
Certification Date
Jan 26, 2024

Note: NPPES allows providers to attest to the accuracy of their NPI data. When a provider request any change to the NPI record, they will be able to attest to their changed NPI data, resulting in an updated certification date.

Taxonomy Code(s)

A taxonomy code is a code that describes the health care service provider's type, classification, and the area of specialization. The primary specialty for this provider is indicated as (Primary) below.

Taxonomy Classification / Specialization State License
- Social Worker (Primary)
WA SC61471162

The taxonomy codes are selected by the provider at the time of NPI registration. Selection of a taxonomy code does not replace any credentialing or validation process that the provider requesting the code should complete.