Specialty Directory
Psychiatry in Irvine, CA
Federal CMS data for 7 psychiatry providers practicing in Irvine, CA. Includes Medicare utilization, Open Payments industry funding, and PECOS enrollment status.
7
Providers
Median industry payments
$2,704
7
Psychiatry Providers
in Irvine, CA
$2,704
Median Industry Payments
per provider (2018–2024)
978
Median Medicare Services
fee-for-service claims
How to read this directory: Providers are listed by Medicare service volume, which reflects only
Medicare fee-for-service patients (typically 65+). This does not represent total practice volume.
Industry payments span multiple years and payment types — they are legal and do not indicate wrongdoing.
Psychiatry includes multiple subspecialties with different practice patterns.
Learn more →
Psychiatry Providers
NPPES · Open Payments · Medicare| Provider | Medicare Volume | Beneficiaries* | Top Procedure | Industry Payments | Payment Type | Coverage |
|---|---|---|---|---|---|---|
| KAMEL, KAMEL M.D. | 26,911 | 8,549 | Nursing facility visit, established patient, straightforward | $1,169 (2018-2024) | Food & Beverage (100%) | Very High |
| NGUYEN, CHARLES TUAN-TU MD | 1,807 | 268 | Office visit for established patient | $1,725,768 (2018-2024) | Consulting (94%) | Very High |
| DIWAN, SHILPA M.D, M.P.H | 1,314 | 412 | Office visit, established patient (30-39 min) | $2,704 (2019-2024) | Food & Beverage (100%) | Very High |
| GREENSPAN, KIEFER | 978 | 227 | Prolonged office E/M service, first 15 minutes | $11,131 (2021-2024) | Food & Beverage (88%) | Very High |
| TURNER, RANDALL D.O. | 977 | 235 | Hospital follow-up visit, moderate complexity | $1,062 (2018-2022) | Food & Beverage (100%) | Very High |
| LISSAUR, RALPH M.D. | 501 | 148 | Office visit, established patient (30-39 min) | $4,091 (2019-2024) | Food & Beverage (95%) | Very High |
| CHAND, RAVINDRA M.D. | 119 | 79 | Office visit, established patient (10-19 min) | $642 (2019-2024) | Food & Beverage (100%) | Very High |
Note: Psychiatry encompasses multiple subspecialties with different practice patterns.
Differences in payment amounts and procedure volumes may reflect subspecialty focus
rather than practice quality. Consider viewing individual profiles for full context.
By Practice Pattern
Psychiatry encompasses multiple practice patterns. Comparing providers within the same pattern provides more meaningful context.
Clinical Cardiology (5)
| Provider | Medicare Volume | Industry Payments |
|---|---|---|
| NGUYEN, CHARLES TUAN-TU | 1,807 | $1,725,768 |
| DIWAN, SHILPA | 1,314 | $2,704 |
| GREENSPAN, KIEFER | 978 | $11,131 |
| LISSAUR, RALPH | 501 | $4,091 |
| CHAND, RAVINDRA | 119 | $642 |
Mixed Practice (2)
| Provider | Medicare Volume | Industry Payments |
|---|---|---|
| KAMEL, KAMEL | 26,911 | $1,169 |
| TURNER, RANDALL | 977 | $1,062 |