Tigon Medical LLC

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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 · PY2021

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

General Payments · PY2021 · All recipient types · CMS publication 2026-06-30

8 matching records · $14,521.45 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 8 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 1–8 of 8.

Recipient Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
GREGORY GASBARRO
Physician / non-physician practitioner
Tigon Medical LLC $3,900.0012/31/2021 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851075403 CMS
JOHN HORNEFF
Physician / non-physician practitioner
Tigon Medical LLC $70.2112/31/2021 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851477351 CMS
MATTHEW M THOMPSON
Physician / non-physician practitioner
Tigon Medical LLC $4,049.5612/31/2021 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851505037 CMS
STEPHAN GEOFFREY PILL
Physician / non-physician practitioner
Tigon Medical LLC $4,026.6812/31/2021 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851526211 CMS
CHRISTOS PHOTOPOULOS
Physician / non-physician practitioner
Tigon Medical LLC $1,500.0010/28/2021 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851039307 CMS
UMASUTHAN SRIKUMARAN
Physician / non-physician practitioner
Tigon Medical LLC $75.0010/12/2021 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851534537 CMS
DANIEL PEREZ
Physician / non-physician practitioner
Tigon Medical LLC $400.0003/16/2021 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851443553 CMS
WALTER CHAD HEMBREE
Physician / non-physician practitioner
Tigon Medical LLC $500.0003/11/2021 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026851479701 CMS

Practitioner overview · all loaded program years

43 providers listed 120 records General Payments

General Payments to practitioners — all loaded program years

  • Category: General Payments
  • Program years: 2021, 2022, 2023, 2024, 2025
  • Record count: 120
  • Providers listed: 43

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
PY2021 $14,521.45 8 8 This company in PY2021 →
PY2022 $18,909.06 6 6 This company in PY2022 →
PY2023 $46,173.01 34 26 This company in PY2023 →
PY2024 $32,557.74 36 17 This company in PY2024 →
PY2025 $39,645.98 36 16 This company in PY2025 →

By recipient specialty (6)

Sorted by name; identical names by identifier.

Providers listed (43)

Sorted by name; identical names by identifier.

ProviderSpecialtyStateRecords reported by this company
AARON CHAMBERLAIN Allopathic & Osteopathic Physicians|Orthopaedic Surgery|Orthopaedic Surgery of the Spine UT 10
ABDULAZIZ AHMED Allopathic & Osteopathic Physicians|Orthopaedic Surgery|Sports Medicine MD 1
AUSTIN MACFARLAND LOONEY Allopathic & Osteopathic Physicians|Orthopaedic Surgery|Sports Medicine GA 1
BRANDON A ROMERO Allopathic & Osteopathic Physicians|Orthopaedic Surgery NV 1
BRET D BEAVERS Allopathic & Osteopathic Physicians|Orthopaedic Surgery TX 1
BRIAN E ETIER Allopathic & Osteopathic Physicians|Orthopaedic Surgery LA 1
BRIAN WILLIAM HILL Allopathic & Osteopathic Physicians|Orthopaedic Surgery FL 1
CHRISTOS PHOTOPOULOS Allopathic & Osteopathic Physicians|Orthopaedic Surgery|Sports Medicine CA 1
DANIEL PEREZ Podiatric Medicine & Surgery Service Providers|Podiatrist PA 2
DAVID A KUMMERFELD Allopathic & Osteopathic Physicians|Orthopaedic Surgery TX 2
DAVID JOHNSON Allopathic & Osteopathic Physicians|Orthopaedic Surgery|Sports Medicine DC 1
DENNIS A DEBERNARDIS Allopathic & Osteopathic Physicians|Orthopaedic Surgery NJ 3
EITAN M KOHAN Allopathic & Osteopathic Physicians|Orthopaedic Surgery NJ 1
FOTIOS P TJOUMAKARIS Allopathic & Osteopathic Physicians|Orthopaedic Surgery NJ 8
GEORGE RUSSELL HUFFMAN Allopathic & Osteopathic Physicians|Orthopaedic Surgery FL 1
GREGORY GASBARRO Allopathic & Osteopathic Physicians|Orthopaedic Surgery MD 13
HOLT S CUTLER Allopathic & Osteopathic Physicians|Orthopaedic Surgery TX 1
JACOB M KIRSCH Allopathic & Osteopathic Physicians|Orthopaedic Surgery MA 3
JASHAN A VALJEE Podiatric Medicine & Surgery Service Providers|Podiatrist|Foot & Ankle Surgery MD 1
JOHN HORNEFF Allopathic & Osteopathic Physicians|Orthopaedic Surgery PA 12
JOSHUA HARDY LAMB Allopathic & Osteopathic Physicians|Orthopaedic Surgery SC 1
KEITH WATSON Allopathic & Osteopathic Physicians|Orthopaedic Surgery TX 2
LEWIS L SHI Allopathic & Osteopathic Physicians|Orthopaedic Surgery IL 2
LOUIS GRANDIZIO Allopathic & Osteopathic Physicians|Orthopaedic Surgery PA 1
MATTHEW M THOMPSON Allopathic & Osteopathic Physicians|Orthopaedic Surgery|Sports Medicine MD 10
MICHAEL S KHAZZAM Allopathic & Osteopathic Physicians|Orthopaedic Surgery TX 1
MICHAEL SCHWARTZ Allopathic & Osteopathic Physicians|Orthopaedic Surgery TX 3
MICHAEL W CANTRELL Allopathic & Osteopathic Physicians|Orthopaedic Surgery|Sports Medicine AL 1
MICHEL ARCAND Allopathic & Osteopathic Physicians|Orthopaedic Surgery RI 2
NIGEL HSU Allopathic & Osteopathic Physicians|Orthopaedic Surgery MD 1
OMAR HUSSAMY Allopathic & Osteopathic Physicians|Orthopaedic Surgery FL 2
PATRICK TATE Allopathic & Osteopathic Physicians|Orthopaedic Surgery OH 1
PAUL SALVATORE RAGUSA Allopathic & Osteopathic Physicians|Orthopaedic Surgery NY 1
STEPHAN GEOFFREY PILL Allopathic & Osteopathic Physicians|Orthopaedic Surgery|Sports Medicine SC 3
STEPHANIE J MUH Allopathic & Osteopathic Physicians|Orthopaedic Surgery MI 1
THERESA PAK Allopathic & Osteopathic Physicians|Orthopaedic Surgery AZ 2
TIMOTHY S JOHNSON Allopathic & Osteopathic Physicians|Orthopaedic Surgery VA 2
UMASUTHAN SRIKUMARAN Allopathic & Osteopathic Physicians|Orthopaedic Surgery MD 11
VAHID ENTEZARI Allopathic & Osteopathic Physicians|Orthopaedic Surgery PA 3
WALTER CHAD HEMBREE Allopathic & Osteopathic Physicians|Orthopaedic Surgery|Foot and Ankle Surgery MD 2
WALTER G STANWOOD Allopathic & Osteopathic Physicians|Orthopaedic Surgery MA 1
WILLIAM RUEBEN AIBINDER Allopathic & Osteopathic Physicians|Orthopaedic Surgery MI 1
ZACHARY RICHARDS ZIMMER Allopathic & Osteopathic Physicians|Orthopaedic Surgery|Sports Medicine DC 1