Champakamala Honganur Rajanna, M.D.,
NPI 1598044133ActiveIndividual· Psychiatry & Neurology, Psychiatry· Mansfield Center, CT
Psychiatry & Neurology, Psychiatry (M.D.,) with Natchaug Hospital, Inc, practicing in Mansfield Center, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $34,900 for 410 claims, against $2,335 paid for services in 2024. Vanda Pharmaceuticals Inc. reported $13.62 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1598044133 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D., |
| Sole proprietor | No |
| NPI issued | Aug 14, 2011 |
| Last updated in NPPES | Jun 23, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Psychiatry Primary | 2084P0800X | 053738 | CT |
| Student in an Organized Health Care Education/Training Program | 390200000X | 0116024030 | VA |
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 (CT) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 13 |
|---|---|
| Services billed | 25 across 6 procedure codes |
| Paid by Medicare | $2,335 |
Part D prescriptions in 2024
| Prescriptions (claims) | 410 · 424 30-day fills |
|---|---|
| Patients | 44 |
| Total drug cost | $34,900 |
| Generic share | 96% of claims |
Education and affiliations
| Graduation year | 1997 |
|---|---|
| Medicare specialty | Psychiatry |
Medical group
- Natchaug Hospital, IncMansfield Center, CT · 36 clinicians
Industry payments (Open Payments)
- 2025$13.62 · 1 payment from 1 company
- 2024$132.15 · 4 payments from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vanda Pharmaceuticals Inc. | $13.62 | 1 |
What the 2025 payments were for
- Food and Beverage$13.62 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 17 psychiatrists in Mansfield Center · All psychiatrists in Connecticut