Physician Profile
Unclaimed ProfileAbout OREPER
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Education & Training
Areas of Expertise
Common questions
What is Dr. Oreper's specialty?
Dr. Oreper is a psychiatry in Castro Valley, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “PSYCHIATRY”.
NPI registry
Where can I find Dr. Oreper?
Dr. Oreper is listed at 20081 LAKE CHABOT RD, Castro Valley, CA 94546. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Oreper?
The number on file is (510) 690-1155. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Oreper's NPI number?
Dr. Oreper's National Provider Identifier is 1346320710. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Oreper's medical education?
Dr. Oreper attended Other, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Oreper been practising?
Dr. Oreper has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Oreper known for?
According to Medicare billing data, Dr. Oreper provides treatments such as psychotherapy with evaluation and management visit, 30 minutes and psychiatric diagnostic evaluation with medical services, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Oreper confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Oreper. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (510) 690-1155
- Email not available
Practice Locations
20081 LAKE CHABOT RD
Castro Valley, CA 94546
Procedures Most Often Billed to Medicare
746 services · 184 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Psychotherapy with evaluation and management visit, 30 minutes | Treatment | 90833 |
364 |
| Psychiatric diagnostic evaluation with medical services | Treatment | 90792 |
18 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
364 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other psychiatry specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Other psychiatry specialists in Castro Valley 6
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1983 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy with evaluation and management visit, 30 minutes 8
Providers in CA who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.