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

DEREK F AMANATULLAH

Allopathic & Osteopathic Physicians Orthopaedic Surgery Adult Reconstructive Orthopaedic Surgery

NPI
1134386576
CMS profile
187326
Location
STANFORD, 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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Filter and download payment records

General Payments · PY2019 · Entire year

$93,720.84

115 records · 0 disputed

Summary and payment records

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

Other CMS categories — not shown on this page

Research Payments

CMS also publishes Research Payments as a separate dataset. This site does not currently mirror it, and no research figure is shown on this page. This provider appears in that dataset.

“If you are a physician who served as a principal investigator on a research study, you may see the payments associated with that research study listed under your name. This does not necessarily mean the payments are attributed to you. The dollar amount of the record corresponds to the total payment; the amounts are not attributed to each individual on the record.”

— Centers for Medicare & Medicaid Services, Open Payments Frequently Asked Questions, FAQ #12224

These records are published by CMS and can be viewed on this provider’s official CMS record. View this provider on CMS Open Payments ↗

“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

Nature of paymentAmountRecords
Consulting Fee $67,375.00 15
Travel and Lodging $22,147.44 41
Food and Beverage $4,198.40 59

By paying entity

PY2019 · entire year · sorted by reported total

Page 2 of 3; records 51–100 of 115 matching records. This page contains 50 records (maximum 50), not the full filtered export. Use the CSV download for all matching records.

IndustryPayments · General Payments

DEREK F AMANATULLAH

NPI 1134386576 · CMS profile ID 187326

Allopathic & Osteopathic Physicians / Orthopaedic Surgery / Adult Reconstructive Orthopaedic Surgery

STANFORD, 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 2 of 3; records 51–100 of 115 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1134386576?year=2019&recipient=provider&page=2#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
DEREK F AMANATULLAH, NPI 1134386576, CMS profile ID 187326. 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 2 of 3; records 51–100 of 115 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1134386576?year=2019&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
APA 7
IndustryPayments. (2026). DEREK F AMANATULLAH, NPI 1134386576, CMS profile ID 187326. 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 2 of 3; records 51–100 of 115 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1134386576?year=2019&recipient=provider&page=2#records-h. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e.
Bluebook
DEREK F AMANATULLAH, NPI 1134386576, CMS profile ID 187326, 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 2 of 3; records 51–100 of 115 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/4e54dd6c-30f8-4f86-86a7-3c109a89528e. https://industrypayments.org/provider/npi-1134386576?year=2019&recipient=provider&page=2#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

115 matching records · $93,720.84 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 115 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 51–100 of 115.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Stryker Corporation $32.0907/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874687 CMS
Stryker Corporation $22.1707/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874689 CMS
Stryker Corporation $147.7407/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874681 CMS
Stryker Corporation $25.6007/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874683 CMS
Stryker Corporation $41.0207/26/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874685 CMS
Stryker Corporation $200.0007/25/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874679 CMS
Stryker Corporation $5,000.0007/18/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874677 CMS
EXACTECH, INC. $111.8707/12/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665882289 CMS
EXACTECH, INC. $30.3507/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665885027 CMS
EXACTECH, INC. $76.5707/12/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665885891 CMS
EXACTECH, INC. $8,000.0007/12/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665885973 CMS
EXACTECH, INC. $528.3507/12/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665886049 CMS
EXACTECH, INC. $70.9807/12/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665888011 CMS
Medtronic USA, Inc. $44.1807/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 667648113 CMS
Stryker Corporation $520.2206/28/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874675 CMS
Stryker Corporation $500.0006/27/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874673 CMS
Smith+Nephew, Inc. $144.1506/25/2019 Food and Beverage No dispute reported Delay: No
Change: CHANGED
06/30/2026 699407833 CMS
Zimmer Biomet Holdings, Inc. $8.2406/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 656408157 CMS
Zimmer Biomet Holdings, Inc. $16.0006/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 656408161 CMS
Zimmer Biomet Holdings, Inc. $10.8606/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 656408165 CMS
Zimmer Biomet Holdings, Inc. $31.4906/01/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 656408169 CMS
EXACTECH, INC. $500.0005/17/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665885391 CMS
Medtronic USA, Inc. $35.5105/10/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 667626811 CMS
EXACTECH, INC. $93.2705/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665882881 CMS
Stryker Corporation $51.9005/07/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874671 CMS
Stryker Corporation $134.9004/29/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874465 CMS
Stryker Corporation $36.4204/22/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874661 CMS
Stryker Corporation $17.3304/22/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874663 CMS
Stryker Corporation $39.7904/22/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874665 CMS
Stryker Corporation $29.6104/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874667 CMS
Stryker Corporation $26.0504/22/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874669 CMS
Medtronic USA, Inc. $106.5604/18/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 667773369 CMS
Medtronic USA, Inc. $17.6704/09/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 667600963 CMS
EXACTECH, INC. $293.5204/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665881849 CMS
EXACTECH, INC. $641.8404/05/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665882287 CMS
EXACTECH, INC. $10,250.0004/05/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665885019 CMS
EXACTECH, INC. $72.6204/05/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665885971 CMS
EXACTECH, INC. $996.4504/05/2019 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665886047 CMS
EXACTECH, INC. $104.0304/05/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665887365 CMS
Stryker Corporation $10,750.0004/05/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874659 CMS
DePuy Synthes Sales Inc. $81.9504/02/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 648687277 CMS
OrthoSensor Inc. $33.1503/31/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 698311841 CMS
Zimmer Biomet Holdings, Inc. $119.4503/27/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 656408171 CMS
EXACTECH, INC. $2,000.0003/15/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665885021 CMS
Medical Device Business Services, Inc. $46.6603/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 655866795 CMS
Stryker Corporation $35.5003/15/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 692874657 CMS
EXACTECH, INC. $129.9003/14/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665881851 CMS
EXACTECH, INC. $2,000.0003/14/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665885023 CMS
EXACTECH, INC. $500.0003/13/2019 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 665885025 CMS
OrthoSensor Inc. $40.3802/28/2019 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 698311815 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $93,720.84 115
PY2020 $109,911.38 61
PY2021 $74,843.70 38
PY2022 $122,909.26 51
PY2023 $116,110.84 55
PY2024 $136,523.16 86
PY2025 $174,367.98 132

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.