Linna Duan, MD
NPI 1831777481 · Psychiatry Physician · San Jose, CA
Enrolled with Medicare as Order and Referring Only - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Provider details
- NPI number
- 1831777481
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- PTL6568 (CA)
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
5 yrs in NPPES registry
- Profile completeness38% of score
100% 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 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sertraline Hcl | 47 | 28 |
| Gabapentin | 35 | 21 |
| Mirtazapine | 35 | 18 |
| Lorazepam | 23 | 17 |
| Olanzapine | 22 | — |
| Trazodone Hcl | 21 | 12 |
| Escitalopram Oxalate | 20 | 18 |
Practice location
Mailing address
Additional practice locations (1)
- 6620 Via Del Oro Fl 2San Jose, CA 95119-1392Phone: (408) 360-2382
Registry dates
- Enumerated
- 2021-04-01
- Last updated
- 2023-10-12
- Certified
- 2023-10-12
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.