Darin W. Lang, MD
NPI 1780602342ActiveIndividual· Internal Medicine· Fargo, ND
Internal Medicine (MD) in Fargo, North Dakota, trained at University of North Dakota School of Medicine (class of 2001). Their prescriptions cost Medicare Part D more than their services did: $1,368,677 for 19,738 claims, against $92,444 paid for services in 2024. Merck Sharp & Dohme LLC reported $21.79 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1780602342 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jul 18, 2006 |
| Last updated in NPPES | Feb 3, 2022 |
| Certified by provider | Feb 3, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 10034 | ND |
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 - Internal Medicine (MN); Practitioner - Internal Medicine (ND) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 814 |
|---|---|
| Services billed | 2,170 across 31 procedure codes |
| Paid by Medicare | $92,444 |
Part D prescriptions in 2024
| Prescriptions (claims) | 19,738 · 42,654 30-day fills |
|---|---|
| Patients | 1,171 |
| Total drug cost | $1,368,677 |
| Generic share | 90% of claims |
Education and affiliations
| Medical school | University of North Dakota School of Medicine |
|---|---|
| Graduation year | 2001 |
| Medicare specialty | Internal Medicine |
Medical group
- Sanford Medical Center FargoWest Fargo, ND · 1,225 clinicians
Hospital affiliations
- Essentia HealthFargo, ND
- Perham HealthPerham, MN
- Sanford Medical Center FargoFargo, ND
Other facilities
- Ethos Home HealthHome health agency · Fargo, ND
- Sanford Home Care FargoHome health agency · Fargo, ND
- Ethos HospiceHospice · Fargo, ND
- Hia HospiceHospice · Fargo, ND
- Pam Rehabilitation Hospital of FargoInpatient rehabilitation facility · Fargo, ND
- Bethany on 42ndNursing home · Fargo, ND
- Eventide FargoNursing home · Fargo, ND
- Smp Health - St Catherine NorthNursing home · Fargo, ND
- Smp Health - St Catherine SouthNursing home · Fargo, ND
Industry payments (Open Payments)
- 2025$21.79 · 1 payment from 1 company
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Merck Sharp & Dohme LLC | $21.79 | 1 |
What the 2025 payments were for
- Food and Beverage$21.79 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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