Leo Hsu, MD
NPI 1679032569 · Psychiatry Physician · Cupertino, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leo Hsu, MD is a Psychiatry Physician provider in Cupertino, CA (NPI 1679032569).
Provider details
- NPI number
- 1679032569
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 49 | 14 |
| Trazodone Hcl | 44 | 11 |
| Gabapentin | 28 | — |
| Mirtazapine | 26 | — |
| Duloxetine Hcl | 22 | — |
| Escitalopram Oxalate | 18 | — |
| Fluoxetine Hcl | 17 |
Practice location
Mailing address
Additional practice locations (1)
- 5755 Cottle Rd Bldg 23San Jose, CA 95123-3640Phone: (408) 972-3233
Registry dates
- Enumerated
- 2019-03-19
- Last updated
- 2023-08-21
- Certified
- 2023-08-21
Frequently asked questions
- What is Leo Hsu's NPI number?
- Leo Hsu's National Provider Identifier (NPI) is 1679032569, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leo Hsu's specialty?
- Leo Hsu is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Leo Hsu located?
- Leo Hsu's practice location on file with NPPES is 19000 Homestead Rd Bldg 2, Cupertino, CA 95014-0712.
- What is Leo Hsu's phone number?
- The practice phone number listed in the NPPES registry for Leo Hsu is (408) 366-4400.
- Does Leo Hsu accept Medicare?
- Leo Hsu is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leo Hsu's NPI active?
- Yes — Leo Hsu's NPI (1679032569) is active in the NPPES registry as of the last update on 2023-08-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.