Dayna Joy Groskreutz, MD
NPI 1285667949ActiveIndividual· Internal Medicine, Pulmonary Disease· Sioux Falls, SD
Internal Medicine, Pulmonary Disease (MD) with Avera McKennan, practicing in Sioux Falls, South Dakota. Their prescriptions cost Medicare Part D more than their services did: $1,362,911 for 2,024 claims, against $53,887 paid for services in 2024. Insmed, Inc. was the largest of 2 companies reporting payments in 2025, $55.84 in all, mostly education. Lists Avera Heart Hospital of South Dakota and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1285667949 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 8, 2006 |
| Last updated in NPPES | Oct 15, 2018 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Pulmonary Disease Primary | 207RP1001X | 8720 | SD |
| Internal Medicine, Critical Care Medicine | 207RC0200X | 35230 | IA |
| Internal Medicine, Pulmonary Disease | 207RP1001X | 35230 | IA |
| Internal Medicine | 207R00000X | 35230 | IA |
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 (IA); Practitioner - Pulmonary Disease (MN); Practitioner - Pulmonary Disease (SD) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 486 |
|---|---|
| Services billed | 1,222 across 29 procedure codes |
| Paid by Medicare | $53,887 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,024 · 2,323 30-day fills |
|---|---|
| Patients | 276 |
| Total drug cost | $1,362,911 |
| Generic share | 35% of claims |
Education and affiliations
| Graduation year | 2000 |
|---|---|
| Medicare specialty | Pulmonary Disease |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Avera McKennanSioux Falls, SD · 959 clinicians
Hospital affiliations
- Avera Heart Hospital of South DakotaSioux Falls, SD
- Avera Holy Family HospitalEstherville, IA
- Avera McKennan Hospital & University Health CenterSioux Falls, SD
- Avera St Mary's HospitalPierre, SD
- Lakes Regional HealthcareSpirit Lake, IA
Industry payments (Open Payments)
- 2025$55.84 · 3 payments from 2 companies
- 2024$16.24 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Insmed, Inc. | $34.76 | 2 |
| Inspire Medical Systems, Inc. | $21.08 | 1 |
What the 2025 payments were for
- Education$34.76 · 2 payments
- Food and Beverage$21.08 · 1 payment
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