Uday Kumar Mukherjee, MD
NPI 1659457075ActiveIndividual· Psychiatry & Neurology, Psychiatry· Walnut Creek, CA
Psychiatry & Neurology, Psychiatry (MD) with Comprehensive Psychiatric Services A Medical Group, practicing in Walnut Creek, California. Their prescriptions cost Medicare Part D more than their services did: $209,387 for 1,965 claims, against $119,031 paid for services in 2024. Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) was the largest of 14 companies reporting payments in 2025, $2,310 in all, mostly food and beverage.
Overview
| NPI | 1659457075 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Oct 27, 2006 |
| Last updated in NPPES | May 6, 2020 |
| Certified by provider | May 6, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | A081816 | CA |
| Psychiatry & Neurology, Geriatric Psychiatry | 2084P0805X | A081816 | CA |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Psychiatry (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 131 |
|---|---|
| Services billed | 1,426 across 10 procedure codes |
| Paid by Medicare | $119,031 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,965 · 2,870 30-day fills |
|---|---|
| Patients | 178 |
| Total drug cost | $209,387 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Psychiatry |
| Telehealth | Offers telehealth |
Medical group
- Comprehensive Psychiatric Services A Medical GroupWalnut Creek, CA · 76 clinicians
Industry payments (Open Payments)
- 2025$2,310 · 83 payments from 14 companies
- 2024$2,718 · 95 payments from 14 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Iti, Inc. (D/B/A Intra-Cellular Therapies, Inc.) | $464.37 | 18 |
| Otsuka America Pharmaceutical, Inc. | $311.53 | 9 |
| Axsome Therapeutics, Inc. | $267.67 | 6 |
| E.R. Squibb & Sons, L.L.C. | $248.47 | 10 |
| Neurocrine Biosciences, Inc. | $220.30 | 9 |
What the 2025 payments were for
- Food and Beverage$2,310 · 83 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 78 psychiatrists in Walnut Creek · All psychiatrists in California