Melissa Chambers
Pediatric Endocrinology · Phoenix, AZNPI 1518227016
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 145 separate payments, which is the pattern of a clinician who attends manufacturer presentations rather than one with a consulting arrangement. It is spread thinly across 27 manufacturers, the largest accounting for just 9.1% — the pattern of someone who eats at a lot of different presentations.
Across 145 payments — averaging $20.66 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Pfizer$272
- Dexcom, Inc.$234
- Tandem Diabetes Care, Inc.$212
- Medtronic$211
- Sanofi-aventis U.S. LLC$201
- Novo Nordisk$189
- plus $2K from 21 others
What the payments were for
- Food & beverage$2,996100%
Most of this is food and beverage — typically meals provided during product presentations at a clinic or hospital. Nationally that is the single largest category of reported payments by count.
General payments by program year
Who reported the general payments
Companies are grouped under their corporate parent — a single manufacturer often files under several CMS reporting entities. Research and ownership payments are counted separately and are not in this table.
| Company | Payments | Total |
|---|---|---|
| Pfizer | 17 | $272 |
| Dexcom, Inc. | 10 | $234 |
| Tandem Diabetes Care, Inc. | 15 | $212 |
| Medtronic(2 entities) | 10 | $211 |
| Sanofi-aventis U.S. LLC | 6 | $201 |
| Novo Nordisk | 12 | $189 |
| Insulet Corporation | 9 | $166 |
| Sequel Med Tech, LLC | 2 | $165 |
| Ascendis Pharma Endocrinology Inc | 6 | $157 |
| AbbVie | 9 | $155 |
| Ultragenyx Pharmaceutical Inc. | 4 | $151 |
| Abbott | 8 | $138 |
| Tolmar Pharmaceuticals, Inc. | 5 | $97 |
| Rhythm Pharmaceuticals, Inc. | 4 | $87 |
| Lilly USA, LLC | 6 | $85 |
| Xeris Pharmaceuticals, Inc. | 4 | $74 |
| Intuity Medical Inc | 2 | $58 |
| Eton Pharmaceuticals, Inc. | 3 | $55 |
| Neurocrine Biosciences, Inc. | 2 | $48 |
| Azurity Pharmaceuticals, Inc. | 2 | $47 |
| Ferring Pharmaceuticals Inc. | 2 | $44 |
| BETA Bionics, Inc. | 1 | $44 |
| Tolmar, Inc. | 2 | $38 |
| Biomarin Pharmaceutical Inc. | 1 | $22 |
| Ipsen Biopharmaceuticals, Inc | 1 | $17 |
| Ascensia Diabetes Care US Inc. | 1 | $15 |
| Companion Medical, Inc. | 1 | $15 |
What the payments were tied to
Products named in the reported payments. Only payments of $100 or more are attributed here — the typical reported payment nationally is a meal worth about $16, and listing those product-by-product would be noise.
- TWIIST$102
How this compares
$2,996 in reported general payments places this provider in the 65th percentile of 35 pediatric endocrinology providers in Arizona.
Other pediatric endocrinology in Phoenix
- Eileen Baez IrizarryPhoenix$53K
- Pamela SmithPhoenix$26K
- Chirag KapadiaPhoenix$13K
- Grazyna Piekos-SobczakPhoenix$12K
- Rola SaadPhoenix$10K
- Micah OlsonPhoenix$9K
- Rochelle WilsonPhoenix$4K
- Amanda CamposPhoenix$3K
- Mahmoud KabbaniPhoenix$3K
- Dorothee NewbernPhoenix$3K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Identity: NPPES NPI Registry, July 2026.