Joevasanth Mariasingam Devasahayam, M.D
NPI 1649434804ActiveIndividual· Internal Medicine, Pulmonary Disease· Sioux Falls, SD
Internal Medicine, Pulmonary Disease (M.D) in Sioux Falls, South Dakota, licensed in TX, OH, MO and SD, with an NPI issued in July 2008. In 2024 Medicare paid $182,380 for 421 patients, and Part D covered 146 of their prescriptions, 61% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 3 companies reporting payments in 2025, $133.83 in all, mostly food and beverage. Lists Medical City Alliance and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1649434804 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Jul 16, 2008 |
| Last updated in NPPES | Aug 10, 2023 |
| Certified by provider | Aug 10, 2023 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | T3131 | TX |
| Internal Medicine | 207R00000X | 35.097427 | OH |
| Internal Medicine | 207R00000X | 2008009085 | MO |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 10258 | SD |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Pulmonary Disease (TX) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 421 |
|---|---|
| Services billed | 1,863 across 29 procedure codes |
| Paid by Medicare | $182,380 |
Part D prescriptions in 2024
| Prescriptions (claims) | 146 · 162 30-day fills |
|---|---|
| Patients | 35 |
| Total drug cost | $30,932 |
| Generic share | 61% of claims |
Education and affiliations
| Graduation year | 2001 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists) |
Hospital affiliations
- Medical City AllianceFort Worth, TX
- Medical City DentonDenton, TX
- Medical City Fort WorthFort Worth, TX
- Medical City LewisvilleLewisville, TX
- Texas Health Presbyterian Hospital DentonDenton, TX
Industry payments (Open Payments)
- 2025$133.83 · 3 payments from 3 companies
- 2024$291.85 · 9 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $99.07 | 1 |
| Insmed, Inc. | $17.67 | 1 |
| Electromed, Inc. | $17.09 | 1 |
What the 2025 payments were for
- Food and Beverage$133.83 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 27 pulmonologists in Sioux Falls · All pulmonologists in South Dakota