Chet Singh Monder, MD
NPI 1427015346ActiveIndividual· Specialist· Phoenix, AZ
Specialist (MD) with Arizona Endocrinology Center PLC, practicing in Phoenix, Arizona. Their prescriptions cost Medicare Part D more than their services did: $669,495 for 3,499 claims, against $65,903 paid for services in 2024. Lilly USA, LLC was the largest of 19 companies reporting payments in 2025, $1,173 in all, mostly food and beverage.
Overview
| NPI | 1427015346 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 26, 2006 |
| Last updated in NPPES | Dec 17, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Specialist Primary | 174400000X | 19411 | AZ |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (AZ) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 245 |
|---|---|
| Services billed | 9,414 across 41 procedure codes |
| Paid by Medicare | $65,903 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,499 · 9,037 30-day fills |
|---|---|
| Patients | 480 |
| Total drug cost | $669,495 |
| Generic share | 57% of claims |
Education and affiliations
| Graduation year | 1980 |
|---|---|
| Medicare specialty | Endocrinology |
Medical group
- Arizona Endocrinology Center PLCPhoenix, AZ · 10 clinicians
Industry payments (Open Payments)
- 2025$1,173 · 55 payments from 19 companies
- 2024$1,282 · 70 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $135.70 | 9 |
| Bayer Healthcare Pharmaceuticals Inc. | $120.35 | 1 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $117.18 | 7 |
| Sequel Med Tech, LLC | $91.35 | 2 |
| Amgen Inc. | $90.35 | 6 |
What the 2025 payments were for
- Food and Beverage$1,173 · 55 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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