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
NEEL J SHAH Allopathic & Osteopathic Physicians|Anesthesiology MA $31.28
NEELAM M THACKER Allopathic & Osteopathic Physicians|Obstetrics & Gynecology MA $19.93
NEELUM GUPTA Allopathic & Osteopathic Physicians|Internal Medicine MI $19.65
NEEMA Y CHOKSHI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $16.04
NEERAJ HOTCHANDANI Allopathic & Osteopathic Physicians|Internal Medicine NY $20.37
NEHA D PATEL Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NJ $30.79
NEHA PATEL Allopathic & Osteopathic Physicians|Pediatrics|Developmental - Behavioral Pediatrics TX $72.98
NEIL D COHEN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $18.59
NEIL E SCHAFFNER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism AL $46.05
NEIL MARK BELLOVIN IV Allopathic & Osteopathic Physicians|Pediatrics NY $14.75
NEJAT A JALISI Allopathic & Osteopathic Physicians|Family Medicine CA $83.27
NELSON G MADRILEJO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $47.30
NIA ABRAHAM Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant IL $13.36
NICHOLAS ARGENTO Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MD $17.51
NICHOLAS J AUGUSTINE Allopathic & Osteopathic Physicians|Family Medicine NY $72.04
NICHOLAS SCOTT YOZAMP Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MO $17.33
NICHOLAS THANH QUANG TRAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism CA $23.16
NICOLAS CUTTRISS Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology DC $14.69
NICOLE E VALENTINE Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant OH $14.77
NICOLE F VALES-BUCKWALD Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics NJ $13.62
NICOLE LORANG Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Primary Care IL $59.84
NICOLE MOMBREA Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family NY $23.40
NICOLE R WIEBER Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Pediatrics MI $19.20
NICOLE SUTOWSKI Physician Assistants & Advanced Practice Nursing Providers|Nurse Practitioner|Family IN $16.53
NIDHI NARAYAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NJ $32.33
NIKITA FORGHANI Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology CA $146.31
NILSA M MARTINEZ Allopathic & Osteopathic Physicians|Family Medicine NY $18.19
NIMRA H RANA Allopathic & Osteopathic Physicians|Internal Medicine NJ $15.82
NINA PHUONG LE Allopathic & Osteopathic Physicians|Internal Medicine NY $241.84
NISHA KARWAL Allopathic & Osteopathic Physicians|Pediatrics MO $16.43
NISHANT KUMAR Allopathic & Osteopathic Physicians|Internal Medicine NE $18.89
NISHWAN N JIBRI Allopathic & Osteopathic Physicians|Family Medicine CA $156.75
NISREEN EZZI Allopathic & Osteopathic Physicians|Family Medicine NY $65.10
NISSA CHRISTINE BLOCHER Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism PA $266.84
NITIN N MAYUR Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $44.60
NIVIN ELIAS Allopathic & Osteopathic Physicians|Family Medicine NJ $15.78
NOLAN JOHNSON Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant OH $35.29
NOOR KHAN Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant GA $39.33
NOOR S BUNNEY Allopathic & Osteopathic Physicians|Internal Medicine MI $23.12
NORA A MCHEIK Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MI $24.96
NORA BARSONY Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism AZ $143.93
NOREEN SHAABAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism FL $46.02
NORMA QUIJADA NY $46.24
NORMAN FISHMAN Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism MO $33.10
NORMAN LAVIN Allopathic & Osteopathic Physicians|Pediatrics CA $41.16
NORMAN S WELCH Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism GA $69.66
NOUHAD B DAMAJ Allopathic & Osteopathic Physicians|Internal Medicine NV $18.78
NUZHAT FARIDI Allopathic & Osteopathic Physicians|Internal Medicine|Endocrinology, Diabetes & Metabolism NY $38.05
OBIAGELI OBI Allopathic & Osteopathic Physicians|Pediatrics|Pediatric Endocrinology MS $49.73
OKECHUKWU ANIAGOH Physician Assistants & Advanced Practice Nursing Providers|Physician Assistant TX $13.55