Lianjie Du, M.D.
NPI 1255331385 · Psychiatry Physician · Orange, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lianjie Du, M.D. is a Psychiatry Physician provider in Orange, CA (NPI 1255331385).
Provider details
- NPI number
- 1255331385
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A84426 (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 tenure33% of score
20 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 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Olanzapine | 86 | — |
| Paliperidone Palmitatebrand: Invega Sustenna | 84 | 16 |
| Quetiapine Fumarate | 78 | — |
| Benztropine Mesylate | 46 | — |
| Trazodone Hcl | 43 | — |
| Aripiprazolebrand: Abilify Maintena | 31 | — |
| Divalproex Sodiumbrand: Divalproex Sodium Er |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$874 across 45 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
- 2005-07-29
- Last updated
- 2011-11-29
Frequently asked questions
- What is Lianjie Du's NPI number?
- Lianjie Du's National Provider Identifier (NPI) is 1255331385, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lianjie Du's specialty?
- Lianjie Du is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Lianjie Du located?
- Lianjie Du's practice location on file with NPPES is 1100 W Stewart Dr, Orange, CA 92868-3849.
- What is Lianjie Du's phone number?
- The practice phone number listed in the NPPES registry for Lianjie Du is (714) 564-9659.
- Does Lianjie Du accept Medicare?
- Lianjie Du is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lianjie Du's NPI active?
- Yes — Lianjie Du's NPI (1255331385) is active in the NPPES registry as of the last update on 2011-11-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.