Michael Lambert, MD
Nephrology · Shawnee, KSNPI 1598769549
Payments from drug & device makers
What this record shows
Almost everything reported here is food and beverage — 100.0% of the total across 34 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 13 manufacturers, the largest accounting for just 14.6% — the pattern of someone who eats at a lot of different presentations. That places this record below the midpoint for nephrology clinicians in KS, where the typical reported total is $931.
Across 34 payments — averaging $18.78 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Novartis$93
- OPKO Pharmaceuticals, LLC$82
- GSK$79
- Calliditas Therapeutics US Inc.$63
- Amgen$61
- Bayer$58
- plus $203 from 7 others
What the payments were for
- Food & beverage$639100%
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 |
|---|---|---|
| Novartis | 4 | $93 |
| OPKO Pharmaceuticals, LLC | 5 | $82 |
| GSK | 4 | $79 |
| Calliditas Therapeutics US Inc. | 3 | $63 |
| Amgen | 3 | $61 |
| Bayer | 3 | $58 |
| Travere Therapeutics, Inc. | 3 | $40 |
| Medtronic | 2 | $39 |
| Boehringer Ingelheim | 2 | $35 |
| Akebia Therapeutics Inc | 2 | $31 |
| Mallinckrodt Hospital Products Inc. | 1 | $22 |
| Nxstage Medical, Inc. | 1 | $19 |
| Fresenius USA Marketing, Inc. | 1 | $18 |
How this compares
$639 in reported general payments places this provider in the 45th percentile of 55 nephrology providers in Kansas.
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 |
|---|---|---|
| FarxigaDapagliflozin Propanediol | 17 | $13,228 |
| ClinisolParenteral Amino Acid 15% No.5 | 52 | $11,411 |
| Potassium Citrate ErPotassium Citrate | 59 | $6,114 |
| Sevelamer Carbonate | 36 | $4,733 |
| Potassium Chloride | 56 | $3,097 |
| ProsolParenteral Amino Acid 20% No.1 | 17 | $2,481 |
| Calcium Acetate | 20 | $2,269 |
| Losartan Potassium | 243 | $1,839 |
| Labetalol Hcl | 43 | $1,775 |
| Doxazosin Mesylate | 96 | $1,524 |
| Calcitriol | 88 | $1,138 |
| Midodrine Hcl | 28 | $1,124 |
| Amlodipine Besylate | 109 | $691 |
| Metolazone | 25 | $617 |
| Allopurinol | 73 | $581 |
Paid to pharmacies, not to this prescriber.
Other nephrology in Shawnee
- Achal DesaiShawnee$10K
- Edgard WehbeWichita$49K
- Scott SolcherTopeka$46K
- Aditi GuptaKansas City$16K
- Alan YuKansas City$16K
- Ahmad TuffahaKansas City$15K
- Brian PaveySalina$14K
- Diane CibrikKansas City$12K
- Dennis RossWichita$12K
- Richard SchumacherOlathe$8K
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.