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.

Payment records · PY2025

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

General Payments · PY2025 · All recipient types · CMS publication 2026-06-30

2,462 matching records · $46,730.86 reported total · 0 disputed

Nature of payment: All payment types

Records imported here (UTC).

Link to these filtered records · CMS source dataset ↗

Download all 2,462 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 2,462.

Recipient Paying entityAmountDate Nature of paymentDispute statusPublication flagsPublished Record IDSource
JOSEPHINE VU
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.4812/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223641664 CMS
HRACH KHUDATYAN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $24.7612/29/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644504 CMS
AILEEN K WANG
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.9512/26/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644520 CMS
PABLITO G NAGPALA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.7312/24/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223640584 CMS
PABLITO G NAGPALA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $2.4912/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223640536 CMS
DANIEL KAPLAN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.2312/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644331 CMS
EVELYN OLUOHA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.2312/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644536 CMS
ROBIN MAIQUEL VILLATORO
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.2312/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644544 CMS
CRISTIANE CAMPELO-HESS
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.2312/23/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223649551 CMS
MICHAEL SPIVAK
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.6012/22/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223647377 CMS
BANTWAL S BALIGA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $23.5612/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223643268 CMS
CHIRAG SHAH
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $23.5512/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644508 CMS
ALISON JOAN LUNSFORD
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.6712/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644512 CMS
BHAVANA NARALA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.6712/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644516 CMS
ERNESTO J BLANCO
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $14.2912/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644524 CMS
WHITNEY BROWN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.6612/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644528 CMS
LAURA SZADEK
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.6612/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644532 CMS
ISEBERTE COLIMON
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $14.2912/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644540 CMS
PATAMAPORN LEKPRASERT
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.9012/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223646306 CMS
LISA A GREEN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.9012/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223646698 CMS
MYRTO FRANGOS
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $20.3812/19/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223647677 CMS
GRACE E MCCRACKEN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.4812/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223640830 CMS
KELSEY D PUSKAR
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.4812/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223640886 CMS
JACOB BRENNER
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.3512/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223643532 CMS
HANNAH GANZEL
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.3512/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644460 CMS
JACQUIE MONTAG
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.3512/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644472 CMS
JAMES L GARDNER
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.4912/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223645226 CMS
REICELLE RUTH DUMENSEL GARCIA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.3412/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223647349 CMS
KATHLEEN GAIL FUCHS
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.7112/18/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223647619 CMS
EMILY R MARTIN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.2212/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223640688 CMS
IRFAN A KHAN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $23.0412/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223641774 CMS
SUROSH NAZEER
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $23.0412/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223641844 CMS
SABREEN AHMED
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $23.0512/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223641864 CMS
RACHAEL A CRAIG
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.2212/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223643548 CMS
URVI PATEL
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $23.0512/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223645650 CMS
VICKY SNYDER
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.4812/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223645960 CMS
EMILY E HUNT
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.4812/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223645976 CMS
EVA TOTH
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $4.5012/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223646094 CMS
ELHAM RABIEI FLORI
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.2212/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223646834 CMS
GINGER ANDERSON
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.2212/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223646942 CMS
JAMIE GIBSON BRADSHAW
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.4812/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223648403 CMS
RYAN ESTON WEISS
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $19.4812/17/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223649309 CMS
SAFWAN HAMWI
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.1912/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223643348 CMS
ANAN A FAIDI
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.4112/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644124 CMS
VIDHYALAKSHMI KANNAN
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $17.3912/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644452 CMS
MAHA F ANSARA
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $21.7412/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223644560 CMS
MUBASHIR MAHMOOD
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.4712/16/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223646236 CMS
FIRAS AKHRASS
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $16.0012/15/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223643028 CMS
DAVID S CLIFFORD
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $15.3312/13/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223642779 CMS
OBIAGELI OBI
Physician / non-physician practitioner
Amphastar Pharmaceuticals, Inc. $24.7812/12/2025 Food and Beverage No dispute reported Delay: No
Change: NEW
06/30/20261223642426 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