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Pediatric Gastroenterology
In 2025, 1,121 Pediatric Gastroenterology providers had general (non-research) payments reported to CMS. Half received less than $195 for the year, and nine in ten received less than $4,696.
1,121providers with payments in 2025
$195median total for the year
$4,696nine in ten received less than
$3,050average total for the year
Providers with the largest 2025 totals
Ordered by 2025 general-payment totals as reported to CMS. A large total is not evidence of wrongdoing; context is below the table.
| Provider | Location | 2025 general | All payments 2019-2025 including research |
|---|---|---|---|
| Roberto Gugig | Palo Alto, CA | $5,818.32 | $7,960.00 |
| Samuel Nurko | Boston, MA | $5,812.00 | $16,883.49 |
| Erin Phillips Syverson | Boston, MA | $5,605.50 | $7,088.68 |
| Jose Derdoy | Saint Louis, MO | $5,300.00 | $5,636.99 |
| Maria Stella Serrano | Washington, DC | $5,285.52 | $6,523.84 |
| Brad A Pasternak | Phoenix, AZ | $5,240.31 | $136,087.33 |
| Aymin Delgado | Naples, FL | $5,227.41 | $44,645.47 |
| Tom K Lin | San Diego, CA | $5,203.35 | $10,083.23 |
| Jennifer Garcia | Miami, FL | $5,167.80 | $6,388.29 |
| Shweta S Namjoshi | Palo Alto, CA | $4,852.89 | $7,771.21 |
| Robert S Venick | Los Angeles, CA | $4,840.05 | $77,706.76 |
| Juliana Frem Vaughan | Little Rock, AR | $4,711.48 | $6,754.74 |
| Dieudonne Simplice Nonga Makon | Columbus, OH | $4,696.34 | $4,696.34 |
| Vincent A Mukkada | Cincinnati, OH | $4,583.66 | $25,601.45 |
| Lakshmi Anandini Suri | San Antonio, TX | $4,517.20 | $4,517.20 |
| David Sean Willcutts | Birmingham, AL | $4,495.70 | $5,137.80 |
| Miriam Vos | Grand Rapids, MI | $4,404.22 | $57,031.74 |
| Kevin J Kelly | Willow Grove, PA | $4,360.43 | $4,360.43 |
| Samuel A Kocoshis | Cincinnati, OH | $4,255.36 | $18,604.67 |
| Anup J Patel | Orange, CA | $4,157.50 | $7,120.51 |
| Anees Siddiqui | Austin, TX | $4,102.12 | $5,551.59 |
| Jonathan E Markowitz | Greenville, SC | $4,087.50 | $12,900.88 |
| Ronald J Sokol | Aurora, CO | $4,066.56 | $27,853.58 |
| Brett Jared Hoskins | Indianapolis, IN | $4,030.97 | $9,644.47 |
| Paul Tran | Phoenix, AZ | $3,985.70 | $7,844.33 |
| James E Squires | Pittsburgh, PA | $3,963.40 | $8,106.93 |
| Andrew Huang Pacheco | Omaha, NE | $3,928.56 | $8,825.85 |
| Cara L Mack | Milwaukee, WI | $3,840.00 | $9,950.65 |
| Sara Karjoo | St Petersburg, FL | $3,835.00 | $43,363.73 |
| Esther N Prince | Rochester, NY | $3,657.13 | $4,126.10 |
| Racha Khalaf | St. Petersburg, FL | $3,524.43 | $3,645.80 |
| Fadi G Haddad | Antioch, CA | $3,354.97 | $3,765.76 |
| Ashish Sudhir Patel | Phoenix, AZ | $3,217.71 | $95,461.31 |
| Michael D Kappelman | Chapel Hill, NC | $3,200.00 | $71,084.11 |
| Kathleen M Loomes | Philadelphia, PA | $2,993.77 | $24,651.38 |
| Jonathan Wong | Madison, WI | $2,892.00 | $2,892.00 |
| Maria M Oliva-Hemker | Baltimore, MD | $2,852.50 | $6,352.41 |
| Tiffany J Patton | Chicago, IL | $2,846.98 | $3,021.06 |
| Rajitha Devadoss Venkatesh | Columbus, OH | $2,792.00 | $5,718.34 |
| Jessica Wen | Philadelphia, PA | $2,721.85 | $36,806.85 |
| Debora Duro | Fort Lauderdale, FL | $2,703.57 | $25,918.17 |
| Jeffrey H Teckman | Saint Louis, MO | $2,694.52 | $74,912.30 |
| Samantha Butzke | Annapolis, MD | $2,644.60 | $5,204.51 |
| Elizabeth Ann Spencer | New York, NY | $2,608.55 | $2,769.64 |
| Thirumazhisai S Gunasekaran | Park Ridge, IL | $2,548.48 | $11,574.65 |
| Bradley A Barth | Dallas, TX | $2,499.37 | $6,671.89 |
| Jeffrey Brown | Chicago, IL | $2,383.22 | $2,863.22 |
| Neal Leleiko | New York, NY | $2,340.00 | $173,738.16 |
| Khalil El-Chammas | Cincinnati, OH | $2,291.23 | $14,858.06 |
| Kenneth E Grant | Orange, CA | $2,269.54 | $3,824.07 |
Source: CMS Open Payments, program years 2019-2025, as reported to CMS by drug and device makers (published June 30, 2026).