Michelle Karen Cassara, MD
NPI 1518092972ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Arvada, CO
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) in Arvada, Colorado, trained at University of Vermont College of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $1,399,969 for 3,322 claims, against $47,995 paid for services in 2024. Novo Nordisk Inc was the largest of 12 companies reporting payments in 2025, $36,192 in all, mostly speaking and faculty fees.
Overview
| NPI | 1518092972 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Feb 23, 2007 |
| Last updated in NPPES | Jan 30, 2025 |
| Certified by provider | Jan 30, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 46410 | CO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Endocrinology (CO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 238 |
|---|---|
| Services billed | 770 across 7 procedure codes |
| Paid by Medicare | $47,995 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,322 · 8,032 30-day fills |
|---|---|
| Patients | 453 |
| Total drug cost | $1,399,969 |
| Generic share | 35% of claims |
Education and affiliations
| Medical school | University of Vermont College of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Endocrinology |
| Telehealth | Offers telehealth |
Medical group
- Intermountain Medical Group Denver LLCBroomfield, CO · 568 clinicians
Hospital affiliations
- Good Samaritan Medical Center LLCLafayette, CO
- Intermountain Health Lutheran HospitalWheat Ridge, CO
- Saint Joseph HospitalDenver, CO
Industry payments (Open Payments)
- 2025$36,192 · 44 payments from 12 companies
- 2024$11,681 · 44 payments from 16 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $35,591 | 30 |
| Ascendis Pharma Endocrinology Inc | $140.33 | 2 |
| Madrigal Pharmaceuticals | $134.83 | 1 |
| Medtronic, Inc. | $83.78 | 1 |
| Dexcom, Inc. | $43.20 | 2 |
What the 2025 payments were for
- Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$29,615 · 9 payments
- Travel and Lodging$4,813 · 12 payments
- Food and Beverage$1,763 · 23 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine, Endocrinology, Diabetes & Metabolism providers in Arvada
- 1982434239
- 1841751765
- 1720068760
- 1083992572
All Internal Medicine, Endocrinology, Diabetes & Metabolism providers in Colorado →