OpGen, Inc.

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Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

Centers for Medicare & Medicaid Services, Open Payments

These records are submitted to CMS and attested to by the reporting companies. CMS publishes them as reported; this site mirrors them without independent verification.

Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.

CMS updates this data on an annual cycle, and corrections or successful disputes made at CMS may not yet appear here. The official CMS record is authoritative for the current state.

Payment records · PY2019

Date, newest first, then reporting company; values as published by CMS.

General Payments · PY2019 · All recipient types · CMS publication 2026-06-30

3 matching records · $24,441.34 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 3 matching records (CSV)

CSV includes CMS record IDs, source and publication dates, the data edition, and a link to these filters. Formula-like text cells are prefixed with an apostrophe for spreadsheet safety.

Showing records 1–3 of 3.

Recipient Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
LARISSA S MAY
Physician / non-physician practitioner
OpGen, Inc. $220.6710/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695267339 CMS
BERT KAMOLSIT LOPANSRI
Physician / non-physician practitioner
OpGen, Inc. $220.6710/03/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695317979 CMS
STEFAN RIEDEL
Physician / non-physician practitioner
OpGen, Inc. $24,000.0001/03/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026695439461 CMS

Practitioner overview · all loaded program years

7 providers listed 12 records General Payments

General Payments to practitioners — all loaded program years

  • Category: General Payments
  • Program years: 2019, 2020, 2021, 2022, 2023
  • Record count: 12
  • Providers listed: 7

Financial relationships do not necessarily indicate an improper relationship; the data is open to interpretation.

Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.

Coverage: program years 2019–2025, General Payments only, reported to physicians and non-physician practitioners. Payments to teaching hospitals are not included in these practitioner figures. Each figure is labeled with its category and program year; categories are never combined.

Practitioner payments by program year

Program yearReportedRecordsProvidersDetail
PY2019 $24,441.34 3 3 This company in PY2019 →
PY2020 $25,500.00 3 3 This company in PY2020 →
PY2021 $6,707.50 1 1 This company in PY2021 →
PY2022 $5,375.00 2 2 This company in PY2022 →
PY2023 $4,175.00 3 3 This company in PY2023 →

By recipient specialty (3)

Sorted by name; identical names by identifier.

Providers listed (7)

Sorted by name; identical names by identifier.

ProviderSpecialtyStateRecords reported by this company
BERT KAMOLSIT LOPANSRI Allopathic & Osteopathic Physicians|Internal Medicine|Infectious Disease UT 1
COLLEEN S KRAFT Allopathic & Osteopathic Physicians|Internal Medicine|Infectious Disease GA 1
DANIEL J DIEKEMA Allopathic & Osteopathic Physicians|Internal Medicine|Infectious Disease ME 2
DAVID PEGUES Allopathic & Osteopathic Physicians|Internal Medicine|Infectious Disease PA 1
LARISSA S MAY Allopathic & Osteopathic Physicians|Emergency Medicine DC 1
STEFAN RIEDEL Allopathic & Osteopathic Physicians|Pathology|Clinical Pathology MD 5
THOMAS J KIRN Allopathic & Osteopathic Physicians|Pathology|Clinical Pathology NJ 1