Richard Porwancher, MD
Infectious Disease · Mercerville, NJNPI 1841206521
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $55,900 of the $56,053 with a category attached, or 99.7%. Pfizer accounts for 99.7% of it on its own, with 5 other manufacturers making up the rest. 2025 is the largest year on record at $36,900, more than ten times the $118 reported in 2019. Among infectious disease clinicians in NJ with any reported payments, this total sits in the top 5% — high for the specialty, which is a reason to read the composition above rather than the number alone.
Across 43 payments — averaging $1303.55 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$56K
- Viiv Healthcare Company$58
- Merck$41
- Melinta Therapeutics, LLC$28
- AbbVie$13
- AstraZeneca$12
What the payments were for
- Consulting fees$55,900100%
- Food & beverage$1530%
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 |
|---|---|---|
| Pfizer | 32 | $55,900 |
| Viiv Healthcare Company | 4 | $58 |
| Merck | 3 | $41 |
| Melinta Therapeutics, LLC | 2 | $28 |
| AbbVie | 1 | $13 |
| AstraZeneca | 1 | $12 |
How this compares
$56,053 in reported general payments places this provider in the 95th percentile of 334 infectious disease providers in New Jersey.
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.
Other infectious disease in Mercerville
- Anamika PatelMercerville$5K
- Suja MathaiMercerville$5K
- Keith GottesdienerRahway$2.1M
- Jihad SlimNewark$2.1M
- Maria SzabelaNewark$474K
- Ronald NahassHillsborough$213K
- Christopher LucastiSomers Point$112K
- Spartaco BellomoJersey City$111K
- Jack BoghossianBayonne$97K
- Adriana GrigoriuJersey City$89K
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.