Tin Maung, MD
Nephrology · Columbia, MDNPI 1033117908
Payments from drug & device makers
Across 12 payments — averaging $14.97 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Travere Therapeutics, Inc.$29
- Boehringer Ingelheim$28
- Novartis$26
- Aurinia Pharma U.S., Inc.$24
- Vifor Pharma, Inc.$22
- AstraZeneca$19
- plus $32 from 2 others
What the payments were for
- Food & beverage$15184%
- Education$2916%
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 |
|---|---|---|
| Travere Therapeutics, Inc. | 5 | $29 |
| Boehringer Ingelheim | 1 | $28 |
| Novartis | 1 | $26 |
| Aurinia Pharma U.S., Inc. | 1 | $24 |
| Vifor Pharma, Inc. | 1 | $22 |
| AstraZeneca | 1 | $19 |
| Currax Pharmaceuticals LLC | 1 | $17 |
| Fresenius USA Marketing, Inc. | 1 | $15 |
How this compares
$180 in reported general payments places this provider in the 25th percentile of 285 nephrology providers in Maryland.
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 |
|---|---|---|
| SpsSodium Polystyrene Sulfon/Sorb | 23 | $5,656 |
| Calcitriol | 43 | $771 |
| Amlodipine Besylate | 36 | $566 |
| Losartan Potassium | 73 | $451 |
| Calcium Acetate | 19 | $392 |
| Hydralazine Hcl | 17 | $286 |
| Lisinopril | 32 | $253 |
| Furosemide | 23 | $236 |
| Diltiazem 24hr Er (Cd)Diltiazem Hcl | 14 | $146 |
| Hydrochlorothiazide | 16 | $95 |
Paid to pharmacies, not to this prescriber.
Other nephrology in Columbia
- Christopher SperatiBaltimore$1.5M
- Michelle EstrellaBaltimore$1.2M
- Mohamed AttaBaltimore$1.1M
- Chirag ParikhBaltimore$1M
- Mario BelledonnePotomac$715K
- Matthew WeirBaltimore$518K
- Kiran SamindlaFrederick$491K
- Saeed KronfliTakoma Park$463K
- Duvuru GeethaBaltimore$409K
- Preeti ChandraBaltimore$287K
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.