Official source Data mirrored from Centers for Medicare & Medicaid Services Open Payments · General Payments · PY2022–2025 Search official records Methodology

Amphastar Pharmaceuticals, Inc.

2,111 providers listed $107,034.42 reported 4,872 records General Payments

General Payments reported — all loaded program years

$107,034.42

  • 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.

How this figure is 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.
  • Figures reflect General Payments this manufacturer or GPO reported to CMS. Research and Ownership/Investment payments are separate datasets and are not included here.
  • Methodology & Data — sourcing, labeling, and limitations.

Coverage: program years 2019–2025, General Payments only. Each figure is labeled with its category and program year; categories are never combined.

By program year

Program yearReportedRecordsProviders
PY2022 $650.00 1 1
PY2023 $18,317.68 248 225
PY2024 $41,335.88 2,161 1,339
PY2025 $46,730.86 2,462 1,237

By recipient specialty (25 shown)

Sorted by reported total.

SpecialtyReportedRecordsProviders
Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism $34,332.81 1,837 687
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical $17,068.36 164 54
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family $13,783.64 743 332
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant $6,757.80 328 155
Allopathic & Osteopathic Physicians|Internal Medicine $6,356.35 306 190
Allopathic & Osteopathic Physicians|Family Medicine $5,684.30 307 135
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner $5,308.80 270 118
Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology $5,246.63 278 98
Allopathic & Osteopathic Physicians|Pediatrics $1,932.62 103 59
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health $1,879.09 98 44
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics $1,708.44 90 42
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care $981.98 54 25
Allopathic & Osteopathic Physicians|Otolaryngology $650.00 1 1
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care $428.20 26 12
Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Gastroenterology $402.41 20 7
Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Gerontology $400.78 25 8
Allopathic & Osteopathic Physicians|Internal Medicine|Cardiovascular Disease $343.09 18 4
Allopathic & Osteopathic Physicians|General Practice $240.16 12 10
Allopathic & Osteopathic Physicians|Internal Medicine|Pulmonary Disease $146.56 8 6
Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Surgical $137.65 7 4
Allopathic & Osteopathic Physicians|Hospitalist $127.20 7 5
Allopathic & Osteopathic Physicians|Internal Medicine|Nephrology $122.63 7 6
Podiatric Medicine & Surgery Service Providers|Podiatrist $111.42 6 3
Allopathic & Osteopathic Physicians|Internal Medicine|Rheumatology $88.53 5 4
Allopathic & Osteopathic Physicians|Allergy & Immunology|Allergy $81.44 4 1

Providers listed (2,111)

Sorted by name. Sort by amount instead

ProviderSpecialtyStateReported by this company
HARRISON WILLIAM LIN Allopathic & Osteopathic Physicians|Otolaryngology CA $650.00
HARRY L UY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $16.26
HASAN I CHAUDHRY Allopathic & Osteopathic Physicians|Family Medicine OH $18.47
HASAN M QUTOB Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MI $24.86
HAYDEN REED DAVIDSON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family CO $42.41
HEATHER DALWADI Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical MD $17.51
HEATHER DAWN POLISZUK Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family OR $45.17
HEATHER EK MATTHEWS Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TX $116.21
HEATHER LINNEA SARAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism AZ $18.29
HEATHER M CALENDRILLO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics NY $59.29
HEATHER R HECK Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant CA $15.82
HEATHER ROBINETTE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Women's Health NJ $13.73
HEBERTO R VALDES Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $69.62
HECTOR M LOPEZ Allopathic & Osteopathic Physicians|Family Medicine WI $28.98
HEIDI A KARON Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MD $17.51
HEIDI C SHEA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $32.07
HEIDI M DAUGHERTY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health OH $53.00
HEIDI M WEBB Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical PA $64.86
HELEN DOLAN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NY $50.69
HELEN H CHEMERE Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant MD $69.57
HELEN OLETU Allopathic & Osteopathic Physicians|General Practice NY $21.70
HEMLATA MOTURI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $42.11
HENRY G FEIN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MD $30.36
HENRY M PASZKO Allopathic & Osteopathic Physicians|Family Medicine NY $18.18
HENRY M PROST Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $53.42
HERA RAHMAN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant GA $79.82
HEROLD DUROSEAU Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Hematology-Oncology NY $80.11
HERTZEL K SURE Allopathic & Osteopathic Physicians|Internal Medicine NY $42.81
HILARY ANN BLUEDORN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner PA $214.85
HILARY MEI LIU Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NV $35.03
HILLARY WRENN CAROTHERS SEIDENBERG Allopathic & Osteopathic Physicians|Pediatrics CA $90.79
HIMALA KASHMIRI Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology CA $75.81
HIMANI CHANDRA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $16.16
HIMARA DAVILA ARROYO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $105.06
HIND NA ABD ELGADIR Allopathic & Osteopathic Physicians|Internal Medicine MI $17.84
HIRA ALI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $14.08
HIRALAL GOKLANI MAHESHWARI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $19.32
HIRAM MALDONADO RIVERA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PR $21.88
HISHAM AFA ALREFAI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism KY $33.23
HISHAM FARHAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $132.71
HONG S LEE Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism IL $36.43
HOOR TEMURI GA $15.80
HOPE-ELIZABETH CLENNON Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology NJ $53.33
HOSANNA ANGELINA CLAY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family UT $13.13
HOWARD A LIPPES Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $136.73
HOWARD J BALBI Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Infectious Diseases NY $80.11
HOWARD S BLANK Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MI $18.38
HRACH KHUDATYAN Allopathic & Osteopathic Physicians|Family Medicine CA $24.76
HSIAO FEN CHEN Allopathic & Osteopathic Physicians|Family Medicine CA $16.39
HUGO LIN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $225.79