Daniel Diekema, MD
Infectious Disease · South Portland, MENPI 1104801489
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $1,750 of the $1,804 with a category attached, or 97.0%. Opgen, Inc. accounts for 97.0% of it on its own, with 1 other manufacturer making up the rest. Among infectious disease clinicians in ME 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 3 payments — averaging $601.40 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Opgen, Inc.$2K
- Biomerieux Inc$54
Across 183 payments — averaging $6143.62 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.
- Biomerieux Inc$1.1M
What the payments were for
- Consulting fees$1,75097%
- Food & beverage$543%
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 |
|---|---|---|
| Opgen, Inc. | 2 | $1,750 |
| Biomerieux Inc | 1 | $54 |
How this compares
$1,804 in reported general payments places this provider in the 95th percentile of 29 infectious disease providers in Maine.
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 South Portland
- Patricia StogsdillSouth Portland$740
- Emily WoodSouth Portland$0
- Leyla AzisSouth Portland$0
- Kinna ThakararSouth Portland$0
- Nicole RebusiSouth Portland$0
- Stephen RawlingsSouth Portland$0
- Christina YenPortland$10K
- Vinod MohanBangor$2K
- Rebekah GassBangor$528
- Matthew CarrollBath$501
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.