Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · CMS publication 2026-06-30 View official record

Covered recipient · General Payments record

CHRISTIAN N ATHANASSIOUS

Allopathic & Osteopathic Physicians Orthopaedic Surgery

NPI
1043471279
CMS profile
229134
Location
SANTA ROSA, CA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

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General Payments · PY2019 · Entire year

$14,838.66

44 records · 0 disputed

Summary and payment records

  • CMS publication 2026-06-30
Read the payment records

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

— Centers for Medicare & Medicaid Services, Open Payments

A reported payment reflects a financial relationship a company disclosed. It does not indicate wrongdoing or a conflict of interest, and it says nothing about the quality of a provider's care.

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.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

How these totals are calculated
  • This total is the sum of the individual General Payments record amounts CMS published for the labeled program year(s); each record amount is used unmodified. The total itself is computed by this site. Nothing is estimated, weighted, or combined across categories.
  • General Payments only. Research and Ownership/Investment are separate datasets and are never summed with these figures; amounts are kept separate per program year.
  • Methodology & Data — sourcing, labeling, and limitations.

Provider summaries generated . 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. View the official CMS record ↗

By nature of payment

PY2019 · entire year · sorted by reported total

By paying entity

PY2019 · entire year · sorted by reported total

Paying entityAmountRecords
NuVasive, Inc. $14,706.61 39
DePuy Synthes Sales Inc. $58.24 2
Stryker Corporation $44.15 1
Electronic Waveform Lab, Inc. $15.52 1
SI-BONE, Inc. $14.14 1

Page 1 of 1; records 1–44 of 44 matching records. This page contains 44 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

CHRISTIAN N ATHANASSIOUS

NPI 1043471279 · CMS profile ID 229134

Allopathic & Osteopathic Physicians / Orthopaedic Surgery

SANTA ROSA, CA

A name match is not confirmation of identity. CMS publishes records for different people under similar names; the NPI, specialty, and location shown on this page are the CMS-published fields that distinguish them.

A payment attributed to a provider may have been made to a third party — a hospital, practice, or research institution — rather than paid to the provider personally.

General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types

Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00

Page 1 of 1; records 1–44 of 44 matching records. This page contains 44 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1043471279?year=2019&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e

Cite these filtered records

The citation includes this program year, filters, data edition, and page of results.

Plain
CHRISTIAN N ATHANASSIOUS, NPI 1043471279, CMS profile ID 229134. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 1; records 1–44 of 44 matching records. This page contains 44 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1043471279?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). CHRISTIAN N ATHANASSIOUS, NPI 1043471279, CMS profile ID 229134. General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types. Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00. Page 1 of 1; records 1–44 of 44 matching records. This page contains 44 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1043471279?year=2019&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
CHRISTIAN N ATHANASSIOUS, NPI 1043471279, CMS profile ID 229134, IndustryPayments, General Payments, PY2019; Recipient scope: Physicians and non-physician practitioners; Reporting company: All reporting companies; Nature of payment: All payment types (Data edition: cms-20260630-workflow-20261105-v2; CMS publication: 2026-06-30; records imported: 2026-11-05T09:06:52.159882+00:00). Page 1 of 1; records 1–44 of 44 matching records. This page contains 44 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1043471279?year=2019&recipient=provider#records-h.

Centers for Medicare & Medicaid Services, Open Payments

Citation formats are provided for reference; check the requirements of your publication.

Payment records · PY2019

Ordering applied by this site (date, newest first, then paying entity) · record values are shown as CMS published them

General Payments · PY2019 · Physicians and non-physician practitioners · CMS publication 2026-06-30

44 matching records · $14,838.66 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 44 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 1–44 of 44.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
NuVasive, Inc. $59.1612/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122475 CMS
NuVasive, Inc. $25.5011/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122463 CMS
DePuy Synthes Sales Inc. $31.2911/06/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648675859 CMS
DePuy Synthes Sales Inc. $26.9510/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648675863 CMS
NuVasive, Inc. $14.1710/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122457 CMS
NuVasive, Inc. $10.2410/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122453 CMS
NuVasive, Inc. $258.0809/30/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122445 CMS
NuVasive, Inc. $50.3809/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122443 CMS
NuVasive, Inc. $110.4009/17/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122449 CMS
NuVasive, Inc. $104.4009/17/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122451 CMS
NuVasive, Inc. $104.4009/17/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122485 CMS
NuVasive, Inc. $8.2509/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122439 CMS
NuVasive, Inc. $79.1909/13/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122437 CMS
NuVasive, Inc. $302.2709/09/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122447 CMS
NuVasive, Inc. $15.9109/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122433 CMS
NuVasive, Inc. $15.0508/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122431 CMS
SI-BONE, Inc. $14.1408/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 689393903 CMS
NuVasive, Inc. $2,400.0008/27/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122421 CMS
NuVasive, Inc. $279.5408/20/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122441 CMS
NuVasive, Inc. $35.0008/20/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122501 CMS
NuVasive, Inc. $32.8608/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122427 CMS
NuVasive, Inc. $62.6807/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122409 CMS
Electronic Waveform Lab, Inc. $15.5206/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 695236967 CMS
NuVasive, Inc. $22.3605/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122401 CMS
NuVasive, Inc. $16.1605/17/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122399 CMS
NuVasive, Inc. $19.8304/30/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122397 CMS
NuVasive, Inc. $2,400.0004/25/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122381 CMS
NuVasive, Inc. $8.0804/24/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122395 CMS
NuVasive, Inc. $4,000.0004/23/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122383 CMS
NuVasive, Inc. $18.0004/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122387 CMS
NuVasive, Inc. $36.7404/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122391 CMS
NuVasive, Inc. $13.1504/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122389 CMS
NuVasive, Inc. $16.4703/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122373 CMS
NuVasive, Inc. $28.0503/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122371 CMS
NuVasive, Inc. $19.2503/11/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122369 CMS
NuVasive, Inc. $15.9303/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122367 CMS
Stryker Corporation $44.1502/21/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692878527 CMS
NuVasive, Inc. $22.6902/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122343 CMS
NuVasive, Inc. $21.8002/08/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122341 CMS
NuVasive, Inc. $4,000.0001/24/2019 Compensation for serving as faculty or as a speaker for a non-accredited and noncertified continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122325 CMS
NuVasive, Inc. $27.2201/23/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122333 CMS
NuVasive, Inc. $6.6001/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122331 CMS
NuVasive, Inc. $12.4701/04/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122329 CMS
NuVasive, Inc. $34.3301/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 705122327 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $14,838.66 44
PY2020 $9,083.89 30
PY2021 $37,286.47 61
PY2022 $15,347.38 48
PY2023 $61,687.34 78
PY2024 $27,707.84 49
PY2025 $28,379.87 76

Source & provenance

Dataset
CMS Open Payments — General Payments
Publisher of source data
Centers for Medicare & Medicaid Services
CMS publication date
2026-06-30
Program years on this page
2019, 2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Generated from
OP_DTL_GNRL_PGYR2025_P06302026_06032026.csv

One page per canonical provider; split Profile_IDs are merged via Associated_Covered_Recipient_Profile_ID_1/_2 from the Covered Recipient Profile Supplement.

Corrections to the substance of a record route to CMS through its review-and-dispute process; errors in how this site mirrors or displays a record route to us. Both paths are described in Methodology & Data.