Ryan Louie, M.D., PH.D.
NPI 1922368851 · Psychiatry Physician · Olympia, WA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ryan Louie, M.D., PH.D. is a Psychiatry Physician provider in Olympia, WA (NPI 1922368851).
Provider details
- NPI number
- 1922368851
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D., PH.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A144170 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Lamotrigine | 89 | 23 |
| Gabapentin | 88 | 29 |
| Buspirone Hcl | 83 | 27 |
| Quetiapine Fumarate | 77 | 17 |
| Fluoxetine Hcl | 73 | 24 |
| Duloxetine Hcl | 71 | 18 |
| Trazodone Hcl | 69 | 30 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-05-25
- Last updated
- 2021-04-28
- Certified
- 2021-04-28
Frequently asked questions
- What is Ryan Louie's NPI number?
- Ryan Louie's National Provider Identifier (NPI) is 1922368851, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ryan Louie's specialty?
- Ryan Louie is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Ryan Louie located?
- Ryan Louie's practice location on file with NPPES is 700 Lilly Rd Ne, Olympia, WA 98506-5115.
- What is Ryan Louie's phone number?
- The practice phone number listed in the NPPES registry for Ryan Louie is (360) 923-7000.
- Does Ryan Louie accept Medicare?
- Ryan Louie is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ryan Louie's NPI active?
- Yes — Ryan Louie's NPI (1922368851) is active in the NPPES registry as of the last update on 2021-04-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.