Mahana Therapeutics, INC.

Reporting payments is a legal requirement; large totals often reflect large product portfolios.

$67Kgeneral payments (2019-2025)
$0.00research payments (2019-2025)
66clinicians paid

General and research payments are shown separately, never blended. Research payments are often institution-directed and tied to clinical trials.

General payments by year

2021 $20K
2022 $46K

General payments only, as reported to CMS. Research payments are totaled above and not included in these bars.

Specialties it works with most

Gastroenterology (Internal Medicine) $36K
Pediatric Gastroenterology $15K
Obstetrics & Gynecology $6,250
Dermatology $3,878
Psychiatry $3,630
Physician Assistant $1,025

Clinicians with the largest reported totals

Often long-running consulting, speaking, or advisory relationships, which companies must report by law. A large total is not evidence of anything improper.

ClinicianLocationSpecialtyGeneral payments (2019-2025)
Walter Sipe San Francisco, CA Pediatric Gastroenterology $10,650.00
Jill Krapf Tampa, FL Obstetrics & Gynecology $6,250.00
Jasmine Zia Seattle, WA Gastroenterology (Internal Medicine) $4,524.78
Eric Shah Ann Arbor, MI Gastroenterology (Internal Medicine) $3,768.43
Emeran Mayer Los Angeles, CA Gastroenterology (Internal Medicine) $2,875.00
Asma Khapra Fairfax, VA Gastroenterology (Internal Medicine) $2,376.03
Jonathan Silverberg Washington, DC Dermatology $2,252.50
Jordan Shapiro Houston, TX Gastroenterology (Internal Medicine) $2,001.03
Carlo Dilorenzo Columbus, OH Pediatric Gastroenterology $2,000.00
Torey Troggio Los Angeles, CA Psychiatry $1,980.00

Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026). Drug and device detail covers 2023-2025.