Doctor profile · Federal record

Dr. Sylvia Castro, ARNP

Family Nurse Practitioner (CMS: Nurse Practitioner) · Renton, WA

  • NPI 1912297219
  • Accepts Medicare
  • 16 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
707 S Grady Way Ste 600
Renton, WA 98057
(206) 823-1004
fax (206) 309-3319
Additional location
11812 N Creek Pkwy N Ste 202
Bothell, WA 980118202
(425) 287-5500
fax (425) 287-6440
Additional location
16427 Ne 145Th St
Woodinville, WA 98072
(425) 481-4835

Credentials & registration

NPPES · NUCC
NPI registered
April 2011 — 15 yrs on file
Profile last updated
February 15, 2023
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
363LF0000X — NUCC code
State license (1)
Washington #AP60210183
Medicaid (2)
WA #203390 · WA #2143055

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1912297219. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$323
Transactions
19
Manufacturers
3
Payer (manufacturer) Industry Txns Amount
Orexo US, INC. 14 $196.23
Becton, Dickinson and Company 3 $76.00
Alkermes, INC. 2 $50.86

By nature of payment

Food and Beverage
$247
Compensation for Services Other Than Consulting, Including Serving As Faculty or As A Speaker at A Venue Other Than A Continuing Education Program
$76

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
117
Patients
13
Total drug cost
$18,541
Drug Type Claims Patients Total cost
Buprenorphine-Naloxone (Buprenorphine Hcl/Naloxone Hcl) Brand 59 13 $7,778
Suboxone (Buprenorphine Hcl/Naloxone Hcl) Brand 20 0 $10,436
Gabapentin Generic 14 0 $151
Clonazepam Generic 12 0 $51
Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) Brand 12 0 $125

Frequently asked questions

Auto-generated from federal data
What is Dr. Sylvia Castro's medical specialty?
Dr. Sylvia Castro practices Family Nurse Practitioner in Renton, WA.
Where does Dr. Sylvia Castro practice?
Dr. Sylvia Castro practices at 707 S Grady Way Ste 600, Renton, WA 98057. Office phone: 2068231004.
What is Dr. Sylvia Castro's NPI?
Dr. Sylvia Castro's National Provider Identifier (NPI) is 1912297219, issued by NPPES.
Does Dr. Sylvia Castro accept Medicare assignment?
Yes. Dr. Sylvia Castro accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.

Methodology · sources used on this page

All figures on this page come from publicly available federal datasets. We do not edit, score, or summarise the underlying data. Profile generated Aug 23, 2026.

NPPES Provider identifiers and practice info May 11, 2026
Open Payments Industry payments to providers (Sunshine Act) May 11, 2026
Medicare Procedure Utilization Services and allowed amounts by HCPCS May 11, 2026
Medicare Part D Prescription drug claims May 11, 2026
CMS MIPS Quality performance scores May 11, 2026
OIG LEIE Federal exclusion / sanctions list May 11, 2026

Information based on publicly available federal data. Not medical advice. Report incorrect data ›