Cross-source identifiers
Every current identifier attachment, with the link method and confidence carried verbatim — deterministic links are 1.000; probabilistic links surface their real matcher confidence, never rounded up.
| Scheme | Value | Source table | Link method | Confidence | Since | Provenance |
|---|---|---|---|---|---|---|
| cms_op_manufacturer_id | 100000401809 | cms_open_payments | deterministic_manufacturer_id | 1.000 | 2026-06-13 | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 evidence: {"rule":"D-OP-MANUFACTURER","manufacturer_id":"100000401809","manufacturer_name":"Tigon Medical LLC","manufacturer_state":"MD"} |
| fda_firm_name | TIGON MEDICAL LLC | fda_firm_link | deterministic_firm_name | 1.000 | 2026-06-14 | evidencerecorded: 2026-06-14 methodology: entity-graph/v1 evidence: {"rule":"FDA-FIRM","match":"exact_normalized_name_unique_manufacturer","matched_fda_sources":["establishment"],"normalized_firm_name":"TIGON MEDICAL LLC"} |
Graph edges
One-hop relationships — ownership, chain membership, operation — each backed by a federal source row.
| Relationship | Entity | Confidence | Source table | Provenance |
|---|---|---|---|---|
| pays → | MICHAEL SCHWARTZ (TX) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1427041557","manufacturer_id":"100000401809","nature_of_payment":"Consulting Fee"} |
| pays → | KEITH WATSON (TX) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1417981580","manufacturer_id":"100000401809","nature_of_payment":"Consulting Fee"} |
| pays → | OMAR HUSSAMY (FL) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1376594069","manufacturer_id":"100000401809","nature_of_payment":"Consulting Fee"} |
| pays → | MICHEL ARCAND (RI) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1699756791","manufacturer_id":"100000401809","nature_of_payment":"Consulting Fee"} |
| pays → | GREGORY GASBARRO (MD) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1073952859","manufacturer_id":"100000401809","nature_of_payment":"Royalty or License"} |
| pays → | AARON CHAMBERLAIN (UT) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1770665333","manufacturer_id":"100000401809","nature_of_payment":"Royalty or License"} |
| pays → | FOTIOS TJOUMAKARIS (NJ) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1720035926","manufacturer_id":"100000401809","nature_of_payment":"Royalty or License"} |
| pays → | JOHN HORNEFF (PA) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1053639302","manufacturer_id":"100000401809","nature_of_payment":"Royalty or License"} |
| pays → | MATTHEW THOMPSON (MD) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1902042013","manufacturer_id":"100000401809","nature_of_payment":"Royalty or License"} |
| pays → | JACOB KIRSCH (MA) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1114366846","manufacturer_id":"100000401809","nature_of_payment":"Travel and Lodging"} |
| pays → | GEORGE HUFFMAN (FL) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1699703157","manufacturer_id":"100000401809","nature_of_payment":"Travel and Lodging"} |
| pays → | STEPHAN PILL (SC) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1992865489","manufacturer_id":"100000401809","nature_of_payment":"Travel and Lodging"} |
| pays → | BRIAN ETIER (LA) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1336467323","manufacturer_id":"100000401809","nature_of_payment":"Food and Beverage"} |
| pays → | WALTER STANWOOD (MA) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1669445243","manufacturer_id":"100000401809","nature_of_payment":"Travel and Lodging"} |
| pays → | VAHID ENTEZARI (PA) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1073889051","manufacturer_id":"100000401809","nature_of_payment":"Travel and Lodging"} |
| pays → | DAVID KUMMERFELD (TX) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1821257130","manufacturer_id":"100000401809","nature_of_payment":"Compensation for serving as faculty or as a speaker for a medical education program"} |
| pays → | UMASUTHAN SRIKUMARAN (MD) | 1.000 | cms_open_payments | evidencerecorded: 2026-06-13 methodology: entity-graph/v1 attributes: {"source":"cms_open_payments"} evidence: {"rule":"D-OP-PAYS","record_type":"general","recipient_npi":"1972649531","manufacturer_id":"100000401809","nature_of_payment":"Royalty or License"} |
Current record
Current claims returned for this entity, grouped by provenance subject. The table exposes the source identifier recorded for each claim.
Point-in-time
Query retained claim coordinates under bitemporal-read/v1. Most facts have no superseded row; dates outside retained coverage may return no prior version, and diffs require both coordinates.
Pick a date to reconstruct, or two dates to diff. Equivalent JSON: /api/v1/history/{subject_type}/{subject_id}?at=… and …/diff?from=…&to=…