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

MICHAEL HAMMER

Allopathic & Osteopathic Physicians Psychiatry & Neurology Neurology with Special Qualifications in Child Neurology

NPI
1508808759
CMS profile
22881
Location
SAINT PETERSBURG, FL

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 · PY2020 · Entire year

$16,319.50

55 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

PY2020 · entire year · sorted by reported total

By paying entity

PY2020 · entire year · sorted by reported total

Paying entityAmountRecords
Ironshore Pharmaceuticals Inc. $10,143.18 17
UCB, Inc. $5,671.63 18
LivaNova USA, Inc. $134.28 3
Eisai Inc. $120.18 3
Takeda Pharmaceuticals U.S.A., Inc. $119.94 5
Supernus Pharmaceuticals, Inc. $72.17 5
Neurelis, Inc. $44.76 3
Tris Pharma Inc $13.36 1

Page 1 of 2; records 1–50 of 55 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

MICHAEL HAMMER

NPI 1508808759 · CMS profile ID 22881

Allopathic & Osteopathic Physicians / Psychiatry & Neurology / Neurology with Special Qualifications in Child Neurology

SAINT PETERSBURG, FL

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, PY2020; 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 55 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/provider/npi-1508808759?year=2020&recipient=provider#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019

Cite these filtered records

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

Plain
MICHAEL HAMMER, NPI 1508808759, CMS profile ID 22881. General Payments, PY2020; 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 55 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/provider/npi-1508808759?year=2020&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
APA 7
IndustryPayments. (2026). MICHAEL HAMMER, NPI 1508808759, CMS profile ID 22881. General Payments, PY2020; 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 55 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/provider/npi-1508808759?year=2020&recipient=provider#records-h. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019.
Bluebook
MICHAEL HAMMER, NPI 1508808759, CMS profile ID 22881, IndustryPayments, General Payments, PY2020; 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 55 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/a08c4b30-5cf3-4948-ad40-36f404619019. https://industrypayments.org/provider/npi-1508808759?year=2020&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 · PY2020

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

General Payments · PY2020 · Physicians and non-physician practitioners · CMS publication 2026-06-30

55 matching records · $16,319.50 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 55 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 55.

Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
Takeda Pharmaceuticals U.S.A., Inc. $20.0012/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 747188517 CMS
Supernus Pharmaceuticals, Inc. $13.2312/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748337911 CMS
Ironshore Pharmaceuticals Inc. $15.9112/08/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021951 CMS
Supernus Pharmaceuticals, Inc. $15.2412/08/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748337909 CMS
UCB, Inc. $750.0012/08/2020 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746112083 CMS
Takeda Pharmaceuticals U.S.A., Inc. $34.2111/18/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 747188511 CMS
Supernus Pharmaceuticals, Inc. $17.2311/10/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748337907 CMS
UCB, Inc. $23.9810/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746098647 CMS
Supernus Pharmaceuticals, Inc. $11.4510/20/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748337905 CMS
Takeda Pharmaceuticals U.S.A., Inc. $18.6910/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 747188507 CMS
Ironshore Pharmaceuticals Inc. $0.8110/12/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021943 CMS
Ironshore Pharmaceuticals Inc. $17.5610/12/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021953 CMS
Ironshore Pharmaceuticals Inc. $51.1510/01/2020 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021963 CMS
Neurelis, Inc. $18.6010/01/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 751867169 CMS
Ironshore Pharmaceuticals Inc. $1,800.0009/22/2020 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021975 CMS
Neurelis, Inc. $12.7809/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 751867167 CMS
Supernus Pharmaceuticals, Inc. $15.0209/22/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 748337903 CMS
Takeda Pharmaceuticals U.S.A., Inc. $22.0509/15/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 747188501 CMS
Ironshore Pharmaceuticals Inc. $14.6309/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021945 CMS
UCB, Inc. $750.0008/17/2020 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746104229 CMS
Neurelis, Inc. $13.3808/14/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 751867165 CMS
Ironshore Pharmaceuticals Inc. $1,800.0008/12/2020 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021973 CMS
Takeda Pharmaceuticals U.S.A., Inc. $24.9908/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 747188495 CMS
UCB, Inc. $18.1207/31/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746083487 CMS
UCB, Inc. $21.0207/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746061949 CMS
UCB, Inc. $750.0007/07/2020 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746111779 CMS
UCB, Inc. $17.0606/04/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746063649 CMS
Ironshore Pharmaceuticals Inc. $18.3604/13/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021955 CMS
LivaNova USA, Inc. $13.6503/11/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 711987073 CMS
Ironshore Pharmaceuticals Inc. $19.3803/09/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021957 CMS
UCB, Inc. $66.0003/09/2020 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746105467 CMS
UCB, Inc. $2,500.0003/09/2020 Consulting Fee No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746116833 CMS
LivaNova USA, Inc. $105.6403/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 711987085 CMS
UCB, Inc. $24.9902/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746105457 CMS
UCB, Inc. $24.9902/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746105459 CMS
UCB, Inc. $24.9902/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746105461 CMS
UCB, Inc. $49.8602/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746105465 CMS
UCB, Inc. $50.0002/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746105469 CMS
Eisai Inc. $12.4602/28/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 751259821 CMS
UCB, Inc. $292.8002/28/2020 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746105463 CMS
UCB, Inc. $281.3702/28/2020 Travel and Lodging No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746117503 CMS
Ironshore Pharmaceuticals Inc. $1,800.0002/14/2020 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021971 CMS
Ironshore Pharmaceuticals Inc. $900.0002/13/2020 Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021965 CMS
LivaNova USA, Inc. $14.9902/12/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 711987055 CMS
Tris Pharma Inc $13.3602/07/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 751445807 CMS
UCB, Inc. $22.2502/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746070985 CMS
UCB, Inc. $4.2002/05/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 746071107 CMS
Eisai Inc. $94.6401/29/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 751343219 CMS
Ironshore Pharmaceuticals Inc. $15.6001/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021947 CMS
Ironshore Pharmaceuticals Inc. $15.9001/23/2020 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 737021949 CMS

By program year

All program years on this page · sorted by year

Program yearAmountRecords
PY2019 $41,528.38 155
PY2020 $16,319.50 55
PY2021 $20,974.64 89
PY2022 $17,116.73 66
PY2023 $3,374.16 24
PY2024 $724.22 5
PY2025 $208.31 2

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.