Vijayalak Pratha, MD
Gastroenterology · San Diego, CANPI 1992892707
Payments from drug & device makers
What this record shows
Johnson & Johnson accounts for 61.7% of it on its own, with 4 other manufacturers making up the rest. That places this record below the midpoint for gastroenterology clinicians in CA, where the typical reported total is $1,790.
Across 14 payments — averaging $44.48 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Johnson & Johnson$384
- AbbVie$99
- Salix Pharmaceuticals, A Division Of Bausch Health US, LLC$99
- Celltrion USA Inc.$24
- Shield Therapeutics Inc$15
Across 332 payments — averaging $3559.77 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Genentech, Inc.$268K
- Janssen Research & Development, LLC$175K
- Roche Products Limited$151K
- Chugai Pharmaceutical Co., Ltd.$131K
- Pfizer$123K
- AbbVie$86K
- plus $248K from 7 others
What the payments were for
- Food & beverage$25841%
- Education$36559%
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Johnson & Johnson | 7 | $384 |
| AbbVie | 4 | $99 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 1 | $99 |
| Celltrion USA Inc. | 1 | $24 |
| Shield Therapeutics Inc | 1 | $15 |
How this compares
$623 in reported general payments places this provider in the 30th percentile of 1,885 gastroenterology providers in California.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| ZenpepLipase/Protease/Amylase | 14 | $8,854 |
| Sod Sulf-Potass Sulf-Mag SulfSodium, Potassium,mag Sulfates | 20 | $1,406 |
| Fluconazole | 14 | $207 |
| Levothyroxine Sodium | 12 | $6 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in San Diego
- William SandbornSan Diego$340K
- David KunkelSan Diego$287K
- Naveen GaraSan Diego$178K
- Bennett RothLos Angeles$2.8M
- Douglas NguyenMission Viejo$2M
- Sammy SaabLos Angeles$1.9M
- Kenneth ChangNewport Beach$1.3M
- Joo HwangStanford$1M
- Drew SchembreWalnut Creek$659K
- Quan Nhula Jolla$641K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.