Ochuko Diamreyan, M.D.
NPI 1134171408 · Psychiatry Physician · San Bernadino, CA
Enrolled with Medicare as Practitioner - Psychiatry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ochuko Diamreyan, M.D. is a Psychiatry Physician provider in San Bernadino, CA (NPI 1134171408).
Provider details
- NPI number
- 1134171408
- Entity type
- Individual
- Primary specialty
- Psychiatry PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A66432 (CA)
Specialties & taxonomies
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 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Trazodone Hcl | 220 | 31 |
| Risperidone | 157 | 16 |
| Quetiapine Fumarate | 143 | 15 |
| Olanzapine | 137 | — |
| Fluoxetine Hcl | 123 | 17 |
| Buspirone Hcl | 122 | 16 |
| Lamotrigine | 112 | 15 |
| Sertraline Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$543 across 24 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
- 2006-05-16
- Last updated
- 2013-12-13
Frequently asked questions
- What is Ochuko Diamreyan's NPI number?
- Ochuko Diamreyan's National Provider Identifier (NPI) is 1134171408, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ochuko Diamreyan's specialty?
- Ochuko Diamreyan is listed in the NPPES registry with a primary specialty of Psychiatry Physician (Allopathic & Osteopathic Physicians).
- Where is Ochuko Diamreyan located?
- Ochuko Diamreyan's practice location on file with NPPES is 2380 North Sierra Way, San Bernadino, CA 92405.
- What is Ochuko Diamreyan's phone number?
- The practice phone number listed in the NPPES registry for Ochuko Diamreyan is (909) 556-7305.
- Does Ochuko Diamreyan accept Medicare?
- Ochuko Diamreyan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ochuko Diamreyan's NPI active?
- Yes — Ochuko Diamreyan's NPI (1134171408) is active in the NPPES registry as of the last update on 2013-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.