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 1; records 1–1 of 1 matching records. This page contains 1 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, PY2022; 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 1; records 1–1 of 1 matching records. This page contains 1 records (maximum 50), not the full filtered export.
Filtered page: https://industrypayments.org/company/100000000273?year=2022&recipient=all#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
- Amphastar Pharmaceuticals, Inc., CMS reporting company ID 100000000273. General Payments, PY2022; 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 1; records 1–1 of 1 matching records. This page contains 1 records (maximum 50), not the full filtered export. IndustryPayments. https://industrypayments.org/company/100000000273?year=2022&recipient=all#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
- APA 7
- IndustryPayments. (2026). Amphastar Pharmaceuticals, Inc., CMS reporting company ID 100000000273. General Payments, PY2022; 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 1; records 1–1 of 1 matching records. This page contains 1 records (maximum 50), not the full filtered export. [Filtered data set page]. https://industrypayments.org/company/100000000273?year=2022&recipient=all#records-h. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c.
- Bluebook
- Amphastar Pharmaceuticals, Inc., CMS reporting company ID 100000000273, IndustryPayments, General Payments, PY2022; 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 1; records 1–1 of 1 matching records. This page contains 1 records (maximum 50), not the full filtered export. Source: https://openpaymentsdata.cms.gov/dataset/df01c2f8-dc1f-4e79-96cb-8208beaf143c. https://industrypayments.org/company/100000000273?year=2022&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 · PY2022
Date, newest first, then reporting company; values as published by CMS.
General Payments · PY2022 · All recipient types · CMS publication 2026-06-30
1 matching record · $650.00 reported total · 0 disputed
Nature of payment: All payment types
Records imported here (UTC).
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 1–1 of 1.
| Recipient | Paying entity | Amount | Date | Nature of payment | Dispute status | Publication flags | Published | Record ID | Source |
|---|---|---|---|---|---|---|---|---|---|
| HARRISON WILLIAM LIN Physician / non-physician practitioner | Amphastar Pharmaceuticals, Inc. | $650.00 | 04/28/2022 | Consulting Fee | No dispute reported | Delay: No Change: UNCHANGED | 06/30/2026 | 910024942 | 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 year | Reported | Records | Providers | Detail |
|---|---|---|---|---|
| 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
- Allergy & Immunology · Allergy 1
- Anesthesiology 2
- Colon & Rectal Surgery 1
- Emergency Medicine 2
- Emergency Medicine · Emergency Medical Services 2
- Family Medicine 135
- Family Medicine · Geriatric Medicine 1
- General Practice 10
- Hospitalist 5
- Internal Medicine 190
- Internal Medicine · Cardiovascular Disease 4
- Internal Medicine · Endocrinology, Diabetes & Metabolism 687
- Internal Medicine · Gastroenterology 1
- Internal Medicine · Geriatric Medicine 3
- Internal Medicine · Infectious Disease 1
- Internal Medicine · Interventional Cardiology 1
- Internal Medicine · Nephrology 6
- Internal Medicine · Pulmonary Disease 6
- Internal Medicine · Rheumatology 4
- Internal Medicine · Sports Medicine 1
- Internal Medicine · Transplant Hepatology 1
- Nuclear Medicine 1
- Obstetrics & Gynecology 3
- Obstetrics & Gynecology · Gynecologic Oncology 1
- Ophthalmology 1
- Orthopaedic Surgery 1
- Otolaryngology 1
- Pain Medicine · Interventional Pain Medicine 1
- Pathology · Anatomic Pathology & Clinical Pathology 1
- Pediatrics 59
- Pediatrics · Adolescent Medicine 1
- Pediatrics · Developmental - Behavioral Pediatrics 1
- Pediatrics · Pediatric Cardiology 1
- Pediatrics · Pediatric Critical Care Medicine 1
- Pediatrics · Pediatric Endocrinology 98
- Pediatrics · Pediatric Gastroenterology 7
- Pediatrics · Pediatric Hematology-Oncology 1
- Pediatrics · Pediatric Infectious Diseases 1
- Pediatrics · Pediatric Rheumatology 1
- Physical Medicine & Rehabilitation 1
- Plastic Surgery 1
- Psychiatry & Neurology · Neurology 4
- Psychiatry & Neurology · Neurology with Special Qualifications in Child Neurology 2
- Psychiatry & Neurology · Psychiatry 2
- Radiology · Diagnostic Radiology 1
- Surgery 1
- Surgery · Pediatric Surgery 1
- Urology · Urogynecology and Reconstructive Pelvic Surgery 1
Nursing Service Providers 3 specialties 3 providers
Physician Assistants & Advanced Practice Nursing Providers 16 specialties 805 providers
- Clinical Nurse Specialist 2
- Clinical Nurse Specialist · Adult Health 3
- Nurse Practitioner 118
- Nurse Practitioner · Acute Care 12
- Nurse Practitioner · Adult Health 44
- Nurse Practitioner · Family 332
- Nurse Practitioner · Gerontology 8
- Nurse Practitioner · Obstetrics & Gynecology 1
- Nurse Practitioner · Pediatrics 42
- Nurse Practitioner · Pediatrics, Critical Care 1
- Nurse Practitioner · Primary Care 25
- Nurse Practitioner · Psychiatric/Mental Health 2
- Nurse Practitioner · Women's Health 2
- Physician Assistant 155
- Physician Assistant · Medical 54
- Physician Assistant · Surgical 4
Podiatric Medicine & Surgery Service Providers 1 specialty 3 providers
Providers listed (2,111)
Sorted by name; identical names by identifier.
| Provider | Specialty | State | Records 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 |