Joseph Barth, MD
Internal Medicine · Prince Frederick, MDNPI 1164571741
Payments from drug & device makers
Across 1 payment — averaging $16.66 each. Meals, travel, consulting and speaking fees, gifts and royalties reported by drug and device makers.
- Covidien LP$17
What the payments were for
- Food & beverage$17100%
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.
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 |
|---|---|---|
| Covidien LP | 1 | $17 |
How this compares
$17 in reported general payments places this provider in the 20th percentile of 2,979 internal medicine 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 |
|---|---|---|
| EliquisApixaban | 124 | $124,355 |
| JardianceEmpagliflozin | 53 | $68,221 |
| XareltoRivaroxaban | 41 | $47,820 |
| Breo ElliptaFluticasone/Vilanterol | 41 | $29,188 |
| Trelegy ElliptaFluticasone/Umeclidin/Vilanter | 41 | $25,182 |
| JanuviaSitagliptin Phosphate | 24 | $23,467 |
| TrulicityDulaglutide | 17 | $23,096 |
| OzempicSemaglutide | 14 | $16,150 |
| MyrbetriqMirabegron | 16 | $12,985 |
| Atorvastatin Calcium | 618 | $7,868 |
| Lantus SolostarInsulin Glargine,hum.Rec.Anlog | 48 | $7,500 |
| Eplerenone | 57 | $5,489 |
| Losartan Potassium | 439 | $5,377 |
| Pantoprazole Sodium | 230 | $4,726 |
| Albuterol Sulfate HfaAlbuterol Sulfate | 110 | $4,236 |
Paid to pharmacies, not to this prescriber.
Other internal medicine in Prince Frederick
- Shishir KhetanRockville$52.1M
- Steven GellerElkridge$15.1M
- Mary HowellHagerstown$6.2M
- Kristen MarroneBaltimore$5.6M
- Jonathan CohenRockville$5M
- Andrea ApoloBethesda$4.8M
- Peta-Gay Jackson BoothBaltimore$3.6M
- Rahul PatelRockville$2.8M
- Mark YarchoanBaltimore$2.4M
- Marianne MannHighland$2.1M
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.