Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Sylvia Gladstone Castro, ARNP

Individual provider Family Nurse Practitioner · NPI 1912297219

Sylvia Gladstone Castro, ARNP is a Nurse Practitioner in Renton, Washington. Qualified in 2010, 16 years ago. Practices with Prime Care PLLC, a 3-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Washington.

Years since qualifying
16
Licensed in
WA
In the registry since
2011
What do these letters mean?
ARNP — Advanced Registered Nurse Practitioner
The title some states use for an advanced practice nurse.

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Practice location Address checks out

707 S Grady Way Ste 600
Renton, WA 98057
Phone: (206) 823-1004
Fax: (206) 309-3319
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (3)

  • 11812 N Creek Pkwy N Ste 202, Bothell, WA 98011-8202 — (425) 287-5500
  • 16427 Ne 145th St, Woodinville, WA 98072 — (425) 481-4835
  • 16427 Ne 145th St, Woodinville, WA 98072 — (425) 481-4835

Specialties & licences

Family Nurse Practitioner (primary) Taxonomy 363LF0000X · Licence AP60210183 (WA)

Record details

NPI number1912297219
Entity typeIndividual (Type 1)
GenderFemale
Credentials ARNP
Sole proprietorYes
NPI enumeratedApril 8, 2011
Last updated in NPPESFebruary 15, 2023
Certification dateFebruary 15, 2023
Mailing address707 S Grady Way Ste 600, Renton, WA 98057-3227

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Prime Care Pllc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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