X4 Pharmaceuticals, Inc.: payments to clinicians
X4 Pharmaceuticals, Inc.'s payments to clinicians rose 594% in 2025, to $283,717 across 86 people. All of it was consulting fees. The largest single recipient (Pathology, Anatomic Pathology & Clinical Pathology, California) received $180,000.
| Program year | Total | Payments | Clinicians paid |
|---|---|---|---|
| 2025 | $283,717 | 114 | 86 |
| 2024 | $40,863 | 152 | 127 |
Largest recipients in 2025
| # | Clinician | Specialty | Location | Amount |
|---|---|---|---|---|
| 1 | Serge Alexanian, M.D. | Pathology, Anatomic Pathology & Clinical Pathology | Los Angeles, CA | $180,000 |
| 2 | Mark D. Fleming, MD | Pathology, Hematology | Boston, MA | $20,250 |
| 3 | Sherif Mohamed Badawy, MD | Pediatrics, Pediatric Hematology-Oncology | Chicago, IL | $14,680 |
| 4 | Julia Therese Warren, MD, PHD | Pediatrics, Pediatric Hematology-Oncology | Philadelphia, PA | $13,088 |
| 5 | Kelly J. Walkovich, M.D. | Pediatrics, Pediatric Hematology-Oncology | Ann Arbor, MI | $10,444 |
| 6 | Olga Kagan Weinberg, M.D. | Pathology, Anatomic Pathology | Dallas, TX | $8,800 |
| 7 | Peter E. Newburger, M.D. | Pediatrics, Pediatric Hematology-Oncology | Worcester, MA | $7,095 |
| 8 | Peter Yuwei Chang, M.D. | Ophthalmology | Waltham, MA | $6,000 |
| 9 | Niraj Chandrakant Patel, MD, MS | Pediatrics, Pediatric Allergy/Immunology | Durham, NC | $5,927 |
| 10 | Teresa K. Tarrant, MD | Internal Medicine, Rheumatology | Chapel Hill, NC | $5,813 |
| 11 | David C. Dale, MD | Internal Medicine | Seattle, WA | $4,270 |
| 12 | Jacob R. Bledsoe, MD | Pathology, Anatomic Pathology & Clinical Pathology | Boston, MA | $2,010 |
| 13 | Nicholas Rider, D.O. | Allergy & Immunology | Roanoke, VA | $1,300 |
| 14 | Caterina P. Minniti, MD | Pediatrics, Pediatric Hematology-Oncology | Washington, DC | $1,250 |
| 15 | Akiko Shimamura, MD, PHD | Pediatrics, Pediatric Hematology-Oncology | Boston, MA | $930.00 |
| 16 | Manish Janardhan Butte, M.D., PH.D. | Pediatrics, Pediatric Allergy/Immunology | Los Angeles, CA | $106.37 |
| 17 | Todd Andrew Levin, M.D. | Allergy & Immunology | Chattanooga, TN | $61.66 |
| 18 | Honor U. Hightshue, FNP | Nurse Practitioner | Chattanooga, TN | $61.66 |
| 19 | Yury Gadayev, P.A. - C | Physician Assistant | Englewood, CO | $47.70 |
| 20 | Brian David Modena, M.D., MSC | Allergy & Immunology | La Jolla, CA | $41.84 |
| 21 | Anthony Loc Nguyen, MD | Internal Medicine, Hematology & Oncology | La Jolla, CA | $41.83 |
| 22 | Porfinio James Romero, CNP | Allergy & Immunology, Allergy | Albuquerque, NM | $38.06 |
| 23 | Elea Ann Martinez, NP-C | Nurse Practitioner, Family | Albuquerque, NM | $38.06 |
| 24 | Steven G. Tolber, MD | Allergy & Immunology | Albuquerque, NM | $38.06 |
| 25 | Mark T. Claus, M.D. | Allergy & Immunology, Allergy | Brockton, MA | $34.15 |
| 26 | Harry Layton Lesmana, M.D. | Pediatrics, Pediatric Hematology-Oncology | Cleveland, OH | $34.13 |
| 27 | John Carroll McDonnell IV, MD | Pediatrics, Pediatric Allergy/Immunology | Cleveland, OH | $34.13 |
| 28 | Meagan Cox Beaulieu, APRN | Nurse Practitioner | Boulder, CO | $33.38 |
| 29 | Joao Pedro Matias Lopes, M.D. | Allergy & Immunology | Scottsdale, AZ | $32.47 |
| 30 | Skyler Dunn Nicholas, FNP-BC | Nurse Practitioner | Pleasant View, UT | $32.13 |
| 31 | Lynn C. Larsen, FNP | Nurse Practitioner | Brigham City, UT | $32.13 |
| 32 | Monica B. Reddy, M.D. | Allergy & Immunology | Denver, CO | $31.29 |
| 33 | Kelly McKenna Hersh, FNP | Nurse Practitioner, Family | Denver, CO | $31.29 |
| 34 | Valerie Deremer, PA | Physician Assistant | San Antonio, TX | $29.75 |
| 35 | Sheri Wen Hsu, M.D. | Internal Medicine, Rheumatology | La Quinta, CA | $29.75 |
| 36 | Allison Sarah Remiker, M.D. | Pediatrics, Pediatric Hematology-Oncology | Milwaukee, WI | $27.64 |
| 37 | John Talyor Anderson, M.D. | Allergy & Immunology | Homewood, AL | $27.14 |
| 38 | Kelly Shawn Brauer, M.D. | Allergy & Immunology | Owensboro, KY | $26.62 |
| 39 | Vanessa Paige Cox, NP | Nurse Practitioner | Owensboro, KY | $26.62 |
| 40 | Donald Scott Harper, MD | Allergy & Immunology | Mechanicsburg, PA | $25.86 |
| 41 | Shannon Kearney, DO | Allergy & Immunology, Allergy | Bethlehem, PA | $24.77 |
| 42 | Meghann Pine McManus, D.O. | Pediatrics, Pediatric Hematology-Oncology | Nashville, TN | $24.45 |
| 43 | Jesus Eric Pina-Garza, MD | Psychiatry & Neurology, Neurology with Special Qualifications in Child Neurology | Nashville, TN | $24.44 |
| 44 | Clinton Michael Carroll, M.D. | Pediatrics, Pediatric Hematology-Oncology | Nashville, TN | $24.44 |
| 45 | Misty D. Evans, MSN | Nurse Practitioner, Pediatrics | Nashville, TN | $24.44 |
| 46 | Taylor J. Atchley, MD | Allergy & Immunology | Chattanooga, TN | $24.30 |
| 47 | Nathanael Steven Brady, D.O. | Allergy & Immunology, Allergy | Colorado Springs, CO | $24.23 |
| 48 | Brian D. Vicuna, MD | Internal Medicine, Medical Oncology | Las Vegas, NV | $23.57 |
| 49 | Henry Palangdao Igid, MD | Internal Medicine, Hematology & Oncology | Las Vegas, NV | $23.56 |
| 50 | Steven Jeffrey Gottlieb, D.O. | Allergy & Immunology, Allergy | Watkinsville, GA | $22.03 |
| 51 | Charmi D. Patel, MD | Internal Medicine, Allergy & Immunology | Watkinsville, GA | $22.02 |
| 52 | Steven Schaeffer Spires, M.D. | Internal Medicine, Infectious Disease | Athens, GA | $21.91 |
| 53 | Brooke Matthews | Nurse Practitioner, Primary Care | Athens, GA | $21.90 |
| 54 | Shawn Fadum, PA | Physician Assistant, Medical | Ardmore, OK | $21.82 |
| 55 | Martha M. Tarpay, MD | Allergy & Immunology, Allergy | Oklahoma City, OK | $21.81 |
| 56 | Marina Ostroukhova, MD | Allergy & Immunology | Honolulu, HI | $21.36 |
| 57 | Aparna Sharad Shah, M.D. | Specialist | Tamc, HI | $21.36 |
| 58 | Kerry Kathleen Berghoff, NP | Nurse Practitioner | Chandler, AZ | $20.92 |
| 59 | Corey Wayne Deberry-Seguine, PA-C | Physician Assistant | Gilbert, AZ | $20.92 |
| 60 | David P. McGarry, DO | Allergy & Immunology | Spokane Valley, WA | $20.55 |
| 61 | Ritu Pabby, MD | Allergy & Immunology | Spokane Valley, WA | $20.55 |
| 62 | Thomas J. Shen, M.D. | Allergy & Immunology | Leesburg, FL | $20.42 |
| 63 | Mandi Sue Breyman, PA | Physician Assistant | Honolulu, HI | $20.41 |
| 64 | Philip H. Kuo, MD | Allergy & Immunology | Kailua, HI | $20.41 |
| 65 | Ammar Hatab, M.D. | Allergy & Immunology | Tampa, FL | $19.92 |
| 66 | Daniel Suez, MD | Allergy & Immunology | Irving, TX | $19.87 |
| 67 | Arlett Guerrero, PA-C | Physician Assistant | Whittier, CA | $19.33 |
| 68 | Jorge Antonio Quel, M.D. | Allergy & Immunology, Allergy | Marina Del Rey, CA | $19.33 |
| 69 | Kate Oberlin | Dermatology | Indianapolis, IN | $19.15 |
| 70 | Pooneh Newton, PA | Physician Assistant | Albuquerque, NM | $17.59 |
| 71 | Robert Salzman, APRN, FNP-C | Nurse Practitioner | Lakeland, FL | $17.23 |
| 72 | Sandy K. Yip, MD | Allergy & Immunology | Henderson, NV | $16.52 |
| 73 | April Encarnacion Hsu, MPAS, PA-C | Physician Assistant | Henderson, NV | $16.52 |
| 74 | Neil L. Kao, MD | Allergy & Immunology, Allergy | Greenville, SC | $16.39 |
| 75 | Michael Martucci, MD | Allergy & Immunology | Fort Collins, CO | $16.16 |
| 76 | Jan B. Bernhisel-Broadbent, MD | Allergy & Immunology, Allergy | Murray, UT | $16.00 |
| 77 | Malcolm H. Purdy, M.D. | Specialist | Albuquerque, NM | $15.38 |
| 78 | Muhammad Anas Tarakji, MD | Internal Medicine, Hematology & Oncology | Albuquerque, NM | $15.38 |
| 79 | Ronald Joseph Mittel Jr., M.D. | Allergy & Immunology | Peoria, AZ | $14.58 |
| 80 | Heather O'Connell, PA-C | Physician Assistant, Medical | Peoria, AZ | $14.58 |
| 81 | Alycia R. Foti, MD | Pediatrics, Pediatric Hematology-Oncology | Neptune, NJ | $14.46 |
| 82 | Daniel Digiacomo | Pediatrics, Pediatric Allergy/Immunology | Neptune, NJ | $14.45 |
| 83 | Elie Fahed, M.D. | Internal Medicine, Medical Oncology | Casper, WY | $14.42 |
| 84 | Iloabueke Gabriel Chineke, MD | Internal Medicine, Medical Oncology | Casper, WY | $14.42 |
| 85 | Mary Heather King, PA-C | Physician Assistant | Centennial, CO | $14.32 |
| 86 | Isaac Melamed, M.D. | Specialist | Centennial, CO | $14.32 |
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records