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
TODD CAMPBELL Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant LA $25.81
TOLGONAY AGAMEZ-MORALES Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NJ $17.39
TOMMY NGOC PHAM Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant CA $33.81
TONI M MURPHY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $24.21
TONY KASTOON Allopathic & Osteopathic Physicians|Internal Medicine CA $13.08
TOORAJ ZAHEDI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $15.05
TORAL D FRESON Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner OH $22.66
TOUFIK P FARKOUH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $107.25
TRACI NGAN LE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner CA $51.41
TRACY CHAN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner TX $24.15
TRACY M MOSEMAN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $106.71
TRACY PERRY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner GA $48.47
TRAVYS WILLMAN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant MI $21.65
TRICIA WESTHOFF-PANKRATZ Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $114.33
TRINH PHUONG TRAN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TX $50.44
TRISHA ZEIDAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism OH $41.98
TROY H DILLARD Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism WA $40.79
TRUNG N TRAN Allopathic & Osteopathic Physicians|Internal Medicine LA $47.39
TSEGA NEGASSI TESFAY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner MI $41.89
ULHAS M NADGIR Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology CA $19.94
UMAL AZMAT Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $68.95
URVI PATEL Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant MD $121.99
VALERIE M BUTLER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $23.48
VANESSA GOYES RUIZ Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $24.55
VANESSA NARWANI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $13.57
VANESSA R PADDY Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Acute Care KY $26.65
VANESSA SANDIFER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MS $17.81
VANI DUVUURI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $103.79
VANI KOTHA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $54.98
VANITA PROOTHI TREAT Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $143.52
VASANT THACKER Allopathic & Osteopathic Physicians|Obstetrics & Gynecology MA $19.93
VASUDEV G MAGAJI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $29.59
VEENA R WATWE Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism TX $180.57
VENKATA CHITTURI Allopathic & Osteopathic Physicians|Psychiatry & Neurology|Neurology TN $20.45
VERONICA DAWSON SHARP Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant NC $13.74
VERONICA P MCGREGOR Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MO $36.16
VICKI C MONTICELLO Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NY $20.69
VICKI CHAPMAN Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family KY $19.44
VICKY D LUSE Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner KS $14.65
VICKY SNYDER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family TN $50.81
VICTOR D ANGEL Allopathic & Osteopathic Physicians|Family Medicine OH $13.29
VICTOR RICHARD MARLAR Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NC $21.45
VICTORIA ACKER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner TX $47.30
VICTORIA E GRUDZINSKI Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant|Medical NY $35.83
VICTORIA KRANZ IL $114.55
VICTORIA L YENZER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Adult Health MO $34.36
VIDHYALAKSHMI KANNAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism AZ $17.39
VIJAY JOSHI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CT $51.18
VIJAY KUMAR BAHL Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $52.47
VIJAYASUDHA GUNNA Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $19.13