Mary Demoruelle, MD
Rheumatology · Denver, CONPI 1992900575
Payments from drug & device makers
What this record shows
This record is dominated by consulting fees: $8,765 of the $12,417 with a category attached, or 70.6%. 5 manufacturers reported payments, led by Merck at 57.4% of the total. 2025 is the largest year on record at $10,974, more than ten times the $49 reported in 2019.
Across 28 payments — averaging $443.48 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Merck$7K
- Boehringer Ingelheim$3K
- Astrazeneca UK Limited$2K
- AstraZeneca$57
- AbbVie$15
Across 17 payments — averaging $72,694 each. Payments tied to a research study. These frequently flow through the physician to a hospital or research institution rather than to the physician personally.
- Boehringer Ingelheim$918K
- Pfizer$277K
- Astrazeneca UK Limited$41K
What the payments were for
- Consulting fees$8,76571%
- Travel & lodging$2,78822%
- Food & beverage$8647%
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 |
|---|---|---|
| Merck | 10 | $7,125 |
| Boehringer Ingelheim | 2 | $3,218 |
| Astrazeneca UK Limited | 13 | $2,002 |
| AstraZeneca | 2 | $57 |
| AbbVie | 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.
How this compares
$12,417 in reported general payments places this provider in the 80th percentile of 108 rheumatology providers in Colorado.
Medicare billing
What this is not: this is the amount Original Medicare Part B allowed for services this provider billed in 2024. It is not their income. It excludes Medicare Advantage — now more than half of all Medicare enrollment — along with Medicaid and all commercial insurance, and it is gross practice revenue before staff, rent, supplies and malpractice premiums. CMS also suppresses any figure covering ten or fewer patients, so low-volume providers appear smaller than they are.
Most prescribed under Part D
| Drug | Claims | Cost to plans & patients |
|---|---|---|
| Taltz AutoinjectorIxekizumab | 11 | $81,658 |
| Leflunomide | 12 | $987 |
| Hydroxychloroquine Sulfate | 26 | $770 |
| MethotrexateMethotrexate Sodium | 12 | $336 |
| Prednisone | 17 | $100 |
Paid to pharmacies, not to this prescriber.
Other rheumatology in Denver
- Aryeh FischerDenver$114K
- Adam BerlinbergDenver$94K
- Rennie McCabeDenver$58K
- Barbara GoldsteinDenver$47K
- Christopher AntoliniDenver$34K
- Mehrnaz Maleki FischbachDenver$25K
- Liudmila KastsianokDenver$22K
- David KormanDenver$20K
- Kathleen SrockDenver$19K
- Leslie RoseDenver$11K
Where these figures come from
- Payments: CMS Open Payments, program years 2019–2025 (publication P06302026_06032026).
- Billing: Medicare Physician & Other Practitioners, data year 2024. Original Medicare Part B only.
- Identity: NPPES NPI Registry, July 2026.