Sylvia Castro, ARNP
NPI 1912297219 · Family Nurse Practitioner · Renton, WA
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sylvia Castro, ARNP is a Family Nurse Practitioner provider in Renton, WA (NPI 1912297219).
Provider details
- NPI number
- 1912297219
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- ARNP
- Sex
- Female
- Sole proprietor
- Yes
- License
- AP60210183 (WA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
15 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
4 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 71 | 16 |
| Buprenorphine Hcl/Naloxone Hclbrand: Suboxone | 27 | — |
| Gabapentin | 25 | 14 |
| Clonidine Hcl | 21 | 14 |
| Hydroxyzine Pamoate | 19 | 11 |
| Lorazepam | 17 | 12 |
| Methocarbamol |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$323 across 19 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (3)
- 11812 N Creek Pkwy N Ste 202Bothell, WA 98011-8202Phone: (425) 287-5500Fax: (425) 287-6440
- 16427 Ne 145th StWoodinville, WA 98072Phone: (425) 481-4835
- 16427 Ne 145th StWoodinville, WA 98072Phone: (425) 481-4835
Registry dates
- Enumerated
- 2011-04-08
- Last updated
- 2023-02-15
- Certified
- 2023-02-15
Frequently asked questions
- What is Sylvia Castro's NPI number?
- Sylvia Castro's National Provider Identifier (NPI) is 1912297219, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sylvia Castro's specialty?
- Sylvia Castro is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Sylvia Castro located?
- Sylvia Castro's practice location on file with NPPES is 707 S Grady Way Ste 600, Renton, WA 98057.
- What is Sylvia Castro's phone number?
- The practice phone number listed in the NPPES registry for Sylvia Castro is (206) 823-1004.
- Does Sylvia Castro accept Medicare?
- Sylvia Castro is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sylvia Castro's NPI active?
- Yes — Sylvia Castro's NPI (1912297219) is active in the NPPES registry as of the last update on 2023-02-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.