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

SPENCER HAMMACK

Podiatric Medicine & Surgery Service Providers Podiatrist Foot & Ankle Surgery

NPI
1588281448
CMS profile
8170696
Location
PLATTEVILLE, WI

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.

Saved items

Saved only in this browser. No account or alerts.

Filter and download payment records

General Payments · PY2022 · Entire year

$5,382.75

58 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

PY2022 · entire year · sorted by reported total

Nature of paymentAmountRecords
Food and Beverage $2,821.74 51
Travel and Lodging $1,361.01 6
Education $1,200.00 1

By paying entity

PY2022 · entire year · sorted by reported total

Paying entityAmountRecords
Stryker Corporation $3,437.39 44
Alpha Orthopedic Systems $1,362.05 2
Integra LifeSciences Corporation $203.61 2
Organogenesis Inc. $124.74 1
DePuy Synthes Sales Inc. $110.25 3
bsn medical inc $47.11 1
Paragon 28, Inc. $39.94 2
Bone Support Inc. $30.81 1
Kerecis Limited $14.99 1
Sebela Pharmaceuticals Inc. $11.86 1

Page 1 of 2; records 1–50 of 58 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

SPENCER HAMMACK

NPI 1588281448 · CMS profile ID 8170696

Podiatric Medicine & Surgery Service Providers / Podiatrist / Foot & Ankle Surgery

PLATTEVILLE, WI

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, PY2022; 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 2; records 1–50 of 58 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1588281448?year=2022&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c

Cite these filtered records

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

Plain
SPENCER HAMMACK, NPI 1588281448, CMS profile ID 8170696. General Payments, PY2022; 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 2; records 1–50 of 58 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1588281448?year=2022&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
APA 7
IndustryPayments. (2026). SPENCER HAMMACK, NPI 1588281448, CMS profile ID 8170696. General Payments, PY2022; 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 2; records 1–50 of 58 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1588281448?year=2022&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
Bluebook
SPENCER HAMMACK, NPI 1588281448, CMS profile ID 8170696, IndustryPayments, General Payments, PY2022; 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 2; records 1–50 of 58 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c. https://industrypayments.org/provider/npi-1588281448?year=2022&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 · PY2022

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

General Payments · PY2022 · Physicians and non-physician practitioners · CMS publication 2026-06-30

58 matching records · $5,382.75 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 58 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 1–50 of 58.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Stryker Corporation $91.4312/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922480111 CMS
Stryker Corporation $137.2212/16/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922480105 CMS
Stryker Corporation $28.9612/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922480095 CMS
Stryker Corporation $156.1212/08/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479995 CMS
Stryker Corporation $114.4812/05/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479989 CMS
Stryker Corporation $34.6912/02/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479979 CMS
Stryker Corporation $100.7011/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479973 CMS
Stryker Corporation $21.8711/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479967 CMS
Alpha Orthopedic Systems $1,200.0011/16/2022 Education No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 919879491 CMS
Stryker Corporation $39.2211/09/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479953 CMS
Stryker Corporation $200.0811/09/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479961 CMS
Stryker Corporation $200.0810/29/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479947 CMS
Alpha Orthopedic Systems $162.0510/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 919879485 CMS
Stryker Corporation $170.8310/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479941 CMS
bsn medical inc $47.1110/19/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 1051215631 CMS
Stryker Corporation $39.5610/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479933 CMS
Bone Support Inc. $30.8109/22/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 894662659 CMS
Stryker Corporation $8.4109/07/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479927 CMS
Kerecis Limited $14.9908/31/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 959338701 CMS
Stryker Corporation $5.2208/31/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479919 CMS
Paragon 28, Inc. $26.8708/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 904153829 CMS
Organogenesis Inc. $124.7408/23/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 964019579 CMS
DePuy Synthes Sales Inc. $16.2708/15/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 887050795 CMS
Stryker Corporation $7.4308/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479913 CMS
Stryker Corporation $154.9608/10/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479907 CMS
Stryker Corporation $44.9007/20/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479901 CMS
Stryker Corporation $22.0507/08/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479893 CMS
Stryker Corporation $11.7306/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479879 CMS
Stryker Corporation $24.8806/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479885 CMS
Stryker Corporation $170.0206/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479871 CMS
Stryker Corporation $582.7806/23/2022 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479863 CMS
Stryker Corporation $20.6706/21/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479855 CMS
Integra LifeSciences Corporation $122.9406/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 947091921 CMS
Stryker Corporation $5.0306/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479849 CMS
DePuy Synthes Sales Inc. $79.5305/18/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 887050789 CMS
Stryker Corporation $23.9805/11/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479843 CMS
Stryker Corporation $43.6704/28/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479835 CMS
Sebela Pharmaceuticals Inc. $11.8604/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 898427319 CMS
Stryker Corporation $160.7404/12/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479829 CMS
Stryker Corporation $14.5704/01/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479821 CMS
Stryker Corporation $143.8903/14/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479813 CMS
DePuy Synthes Sales Inc. $14.4503/03/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 887050785 CMS
Paragon 28, Inc. $13.0702/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 889831017 CMS
Stryker Corporation $71.7102/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479801 CMS
Stryker Corporation $19.8302/26/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479807 CMS
Stryker Corporation $40.2302/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479779 CMS
Stryker Corporation $167.9702/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479785 CMS
Stryker Corporation $30.3402/25/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479795 CMS
Stryker Corporation $9.0302/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479757 CMS
Stryker Corporation $15.3602/24/2022 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 922479763 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2020 $718.95 5
PY2021 $6,161.98 50
PY2022 $5,382.75 58
PY2023 $3,186.97 48
PY2024 $2,679.28 41
PY2025 $1,990.02 34

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
2020, 2021, 2022, 2023, 2024, 2025
Source files and profile matching
Source files
Dataset page · Bulk file · PY2020 , PY2021 , PY2022 , PY2023 , PY2024 , PY2025
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.