Amphastar Pharmaceuticals, Inc.

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

Centers for Medicare & Medicaid Services, Open Payments

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.

Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.

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.

Page 1 of 5; records 1–50 of 248 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

Amphastar Pharmaceuticals, Inc.

CMS reporting company ID 100000000273

General Payments, PY2023; Recipient scope: All recipient types; 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 5; records 1–50 of 248 matching records. This page contains 50 records (maximum 50), not the full filtered export.

Filtered page: https://industrypayments.org/company/100000000273?year=2023&recipient=all#records-h

CMS source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9

Cite these filtered records

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

Plain
Amphastar Pharmaceuticals, Inc., CMS reporting company ID 100000000273. General Payments, PY2023; Recipient scope: All recipient types; 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 5; records 1–50 of 248 matching records. This page contains 50 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/company/100000000273?year=2023&recipient=all#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
APA 7
IndustryPayments. (2026). Amphastar Pharmaceuticals, Inc., CMS reporting company ID 100000000273. General Payments, PY2023; Recipient scope: All recipient types; 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 5; records 1–50 of 248 matching records. This page contains 50 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/company/100000000273?year=2023&recipient=all#records-h. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9.
Bluebook
Amphastar Pharmaceuticals, Inc., CMS reporting company ID 100000000273, IndustryPayments, General Payments, PY2023; Recipient scope: All recipient types; 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 5; records 1–50 of 248 matching records. This page contains 50 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/fb3a65aa-c901-4a38-a813-b04b00dfa2a9. https://industrypayments.org/company/100000000273?year=2023&recipient=all#records-h.

Centers for Medicare & Medicaid Services, Open Payments

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

Payment records · PY2023

Date, newest first, then reporting company; values as published by CMS.

General Payments · PY2023 · All recipient types · CMS publication 2026-06-30

248 matching records · $18,317.68 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 248 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 248.

Recipient Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
DENISE JOFFE
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $13.5112/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910592 CMS
CHERYL A KOCH
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $13.5112/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910597 CMS
VANITA PROOTHI TREAT
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $13.5112/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910619 CMS
MARGARET TING RYAN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $13.5112/28/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910795 CMS
COURTNEY PESHKOVSKY
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.6612/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911763 CMS
DEBRA J BROUWER
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.6512/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911802 CMS
SYDNEY ELAINE CWIEKA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.6512/27/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911837 CMS
MINH MACH
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $18.7612/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910603 CMS
MICHAEL H SHANIK
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $14.4212/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910699 CMS
DAVID B KUGLER
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $14.4212/22/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910871 CMS
MICHAEL HEILE
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $18.4512/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910679 CMS
BASIL OMAR BURNEY
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.7612/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910717 CMS
HENRY M PROST
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.7612/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910781 CMS
LAURA BROXTERMAN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $18.4512/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911199 CMS
NOLAN JOHNSON
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $18.4412/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911735 CMS
ROOPA SATHYAPRAKASH
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.7612/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911757 CMS
MELIDA VERONICA AVILA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.7612/21/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911791 CMS
NORMAN LAVIN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $18.7012/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910637 CMS
AMMAR A BAYRAKDAR
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.5512/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910673 CMS
JORGE A VIERA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.1112/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910961 CMS
PABLITO G NAGPALA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.6012/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911555 CMS
KAY K WIN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.3412/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911675 CMS
SYED Z MOHSIN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.5412/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911739 CMS
DARIA KORNEVA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.1112/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911797 CMS
MATTHEW DAVID RATHBUN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.5412/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911809 CMS
ASHLEY CLARK
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $18.7012/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911825 CMS
TIFFANY CLAIRE WAKIM
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.5412/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911831 CMS
BETTY COLEMAN-BRADLEY
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.5412/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911849 CMS
NISSA CHRISTINE BLOCHER
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.3512/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911855 CMS
STANISLAV GOYKHMAN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.1112/20/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911867 CMS
ARVIND Y KRISHNA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.4812/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910775 CMS
ANNA BORON
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.2012/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910837 CMS
JAMES ATKINSON DEER
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.2012/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910997 CMS
HEIDI M DAUGHERTY
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.4812/19/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911659 CMS
BARRY J REINER
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $24.0212/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910741 CMS
LEEANNA PETERSON
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.7612/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910941 CMS
JENNA MCCONNELL
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $13.6612/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911076 CMS
MEAGAN MAUREEN GRUWELL
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.7712/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911619 CMS
DARRELAN MICHELLE MCBRIDE
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.7612/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911785 CMS
JENNIFER SUMBILLA ANISKO
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $24.0212/18/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911873 CMS
ANDREW JOSEPH GARZA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.9612/15/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911819 CMS
JEFFREY FREEMAN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.7612/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998910655 CMS
SONUM SINGH
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.7612/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911003 CMS
KATIE CASEY
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.0412/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911435 CMS
DIVYA KHURANA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.9412/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911653 CMS
ROOPA ROY
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.9412/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911687 CMS
LAWRENCE ANDREW RUDOLF
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.0312/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911693 CMS
BRICCIO S CADIZ
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.0312/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911705 CMS
SHANA R MENCHER
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.9412/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911717 CMS
TINA LOUISE VALENTINE
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.0312/14/2023 Food and Beverage No dispute reported Delay: No
Change: UNCHANGED
06/30/2026 998911745 CMS

Practitioner overview · all loaded program years

2,111 providers listed 4,872 records General Payments

General Payments to practitioners — all loaded program years

  • Category: General Payments
  • Program years: 2022, 2023, 2024, 2025
  • Record count: 4,872
  • Providers listed: 2,111

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

Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.

Coverage: program years 2019–2025, General Payments only, reported to physicians and non-physician practitioners. Payments to teaching hospitals are not included in these practitioner figures. Each figure is labeled with its category and program year; categories are never combined.

Practitioner payments by program year

Program yearReportedRecordsProvidersDetail
PY2022 $650.00 1 1 This company in PY2022 →
PY2023 $18,317.68 248 225 This company in PY2023 →
PY2024 $41,335.88 2,161 1,339 This company in PY2024 →
PY2025 $46,730.86 2,462 1,237 This company in PY2025 →

By recipient specialty (68)

Sorted by name; identical names by identifier.

Allopathic & Osteopathic Physicians 48 specialties 1,259 providers
Nursing Service Providers 3 specialties 3 providers
Physician Assistants & Advanced Practice Nursing Providers 16 specialties 805 providers
Podiatric Medicine & Surgery Service Providers 1 specialty 3 providers

Providers listed (2,111)

Sorted by name; identical names by identifier.

ProviderSpecialtyStateRecords reported by this company
AAKASH RAJWANI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY 1
AARON D BUSSEY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TN 4
AARON J STOICK Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner SD 1
AARON N ROCKOFF Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA 3
AARON WILKERSON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family UT 1
AASHISH DESAI Allopathic & Osteopathic Physicians|Internal Medicine|Interventional Cardiology GA 1
ABBEGAIL JORDAN DEGELOW Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN 4
ABBEY JO HENDERSHOTT Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family OH 2
ABDALLAH ALTARSHAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL 1
ABDALLAH DLEWATI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MI 3
ABDEL WAHAB MERI Allopathic & Osteopathic Physicians|Internal Medicine MI 1
ABDULSALAM K AL KASSAB Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MI 3
ABEL E GONZALEZ Allopathic & Osteopathic Physicians|Internal Medicine NJ 1
ABENA BAAH-FORDJOUR Allopathic & Osteopathic Physicians|Emergency Medicine NY 1
ABHIGNA UDAY KUMAR KULKARNI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism DE 2
ABHILASHA SINGH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism AZ 1
ABHIRAM JAVVAJI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX 5
ABIDE BATASSI Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner GA 1
ABIGAIL AYAD MAKARY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family CA 2
ABIGAIL WALSER TERKELTOUB Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical NC 5
ADAM J KROE Allopathic & Osteopathic Physicians|Family Medicine NY 2
ADAM M PERUSKI Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant MI 3
ADARSH A JHA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CT 2
ADEDAPO F OKUSANYA Allopathic & Osteopathic Physicians|Family Medicine WI 1
ADELYA MINULINA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NY 37
ADENIYI O ODUGBESAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA 3
ADEWUMI ADETAYO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NJ 1
ADIL ALAVI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL 4
ADINA SIKLAWI Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner MI 1
ADRIANA KATZ Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ 1
ADRIANA L DAVIS Allopathic & Osteopathic Physicians|Family Medicine NJ 1
ADRIANA M LOZANO CUBILLOS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner KS 1
ADRIANA SOFIA RUIZ Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical GA 3
ADRIENNE ANDERSON Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical GA 1
ADRIENNE HARRIS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family LA 1
ADRIENNE NATASHA TERRY Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant UT 3
AHMED A ARIF Allopathic & Osteopathic Physicians|Internal Medicine MI 1
AHMED ABDUL QADIR Allopathic & Osteopathic Physicians|Family Medicine MI 1
AHMET BAHADIR ERGIN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL 7
AILEEN K WANG Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA 1
AIRTON PINHEIRO DE MENEZES — FL 1
AISHA KHAN Allopathic & Osteopathic Physicians|Internal Medicine CT 1
AISHA ZIKRA KHAN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant IL 1
AJAY K AGARWALA Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease NY 2
ALAN FELDMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL 2
ALAN JAY COHEN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TN 1
ALAN OGDEN MARCUS Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA 1
ALANA KARIE KOEPF BOWMAN Allopathic & Osteopathic Physicians|Family Medicine MI 1
ALBARA MARWA Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology MD 2
ALEEM A SYED Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA 1