Taimur Khan, MD
Gastroenterology · Lakewood, CONPI 1235387358
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 92.1% of the total across 184 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 29 manufacturers, the largest accounting for just 19.4% — the pattern of someone who eats at a lot of different presentations. 2025 is the largest year on record at $1,581, 4.1 times the $386 reported in 2019.
Across 184 payments — averaging $22.90 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- AbbVie$817
- Gilead$423
- Bristol Myers Squibb$380
- Cook Medical LLC$348
- Ardelyx, Inc.$303
- Takeda Pharmaceuticals U.S.A., Inc.$289
- plus $2K from 23 others
Across 5 payments — averaging $4698.40 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.
- Viiv Healthcare Company$23K
What the payments were for
- Grants$3358%
- Food & beverage$3,87992%
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 |
|---|---|---|
| AbbVie(2 entities) | 31 | $817 |
| Gilead | 16 | $423 |
| Bristol Myers Squibb | 23 | $380 |
| Cook Medical LLC | 4 | $348 |
| Ardelyx, Inc. | 11 | $303 |
| Takeda Pharmaceuticals U.S.A., Inc. | 13 | $289 |
| Salix Pharmaceuticals, A Division Of Bausch Health US, LLC | 15 | $288 |
| Johnson & Johnson | 11 | $222 |
| Regeneron Healthcare Solutions, Inc. | 10 | $204 |
| Sanofi | 9 | $176 |
| Pfizer | 9 | $153 |
| Lilly USA, LLC | 4 | $87 |
| Aimmune Therapeutics, Inc. | 5 | $75 |
| Phathom Pharmaceuticals, Inc. | 3 | $66 |
| Olympus America Inc. | 2 | $47 |
| Merck | 3 | $44 |
| Boston Scientific | 2 | $39 |
| Madrigal Pharmaceuticals | 2 | $38 |
| Nestle Healthcare Nutrition Inc. | 1 | $27 |
| Sandoz | 1 | $25 |
| UCB, Inc. | 1 | $24 |
| Conmed Corporation | 1 | $24 |
| Biocon Biologics Inc | 1 | $20 |
| Ipsen Biopharmaceuticals, Inc | 1 | $20 |
| Intercept Pharmaceuticals, Inc. | 1 | $16 |
| Daiichi Sankyo Inc. | 1 | $15 |
| Braintree Laboratories, Inc. | 1 | $15 |
| Organon | 1 | $14 |
| CSL Behring | 1 | $12 |
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.
- Mavyret$335
How this compares
$4,214 in reported general payments places this provider in the 60th percentile of 304 gastroenterology 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 |
|---|---|---|
| Omeprazole | 113 | $3,049 |
| Gavilyte-CPeg3350/Sod Sulf,bicarb,cl/Kcl | 166 | $2,818 |
| Colestipol Hcl | 13 | $1,209 |
| Pantoprazole Sodium | 57 | $652 |
| Metronidazole | 16 | $260 |
Paid to pharmacies, not to this prescriber.
Other gastroenterology in Lakewood
- Rajesh JainLakewood$239K
- John GoffLakewood$38K
- Scott MackenzieLakewood$13K
- Timothy DobinLakewood$12K
- Andrew KorsonLakewood$11K
- Matthew SetoLakewood$11K
- Peter McNallyFt Carson$1.1M
- Douglas AdlerColorado Springs$910K
- Marcelo KugelmasEnglewood$660K
- Mary Ann HuangDenver$408K
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.