Stephanie Nagai, DNP, ARNP, PMHNP-BC
NPI 1154964120 · Psychiatric/Mental Health Nurse Practitioner · Renton, WA
Stephanie Nagai, DNP, ARNP, PMHNP-BC is a Psychiatric/Mental Health Nurse Practitioner provider in Renton, WA (NPI 1154964120).
Provider details
- NPI number
- 1154964120
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, ARNP, PMHNP-BC
- Sex
- Female
- Sole proprietor
- No
- License
- 61006356 (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
6 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- 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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Lamotrigine | 33 |
| Trazodone Hcl | 18 |
| Bupropion Hclbrand: Bupropion Xl | 17 |
| Sertraline Hcl | 17 |
| Valbenazine Tosylatebrand: Ingrezza | 12 |
| Methylphenidate Hclbrand: Jornay Pm | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,889 across 48 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
Registry dates
- Enumerated
- 2019-10-23
- Last updated
- 2025-04-10
- Certified
- 2025-04-10
Frequently asked questions
- What is Stephanie Nagai's NPI number?
- Stephanie Nagai's National Provider Identifier (NPI) is 1154964120, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Nagai's specialty?
- Stephanie Nagai is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Stephanie Nagai located?
- Stephanie Nagai's practice location on file with NPPES is 15 S Grady Way Ste 249, Renton, WA 98057-3209.
- What is Stephanie Nagai's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Nagai is (425) 233-0431.
- Is Stephanie Nagai's NPI active?
- Yes — Stephanie Nagai's NPI (1154964120) is active in the NPPES registry as of the last update on 2025-04-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.