Rachel Susanna Darken, MD
NPI 1134248891ActiveIndividual· Psychiatry & Neurology, Neurology· Saint Louis, MO
Psychiatry & Neurology, Neurology (MD) in Saint Louis, Missouri, trained at Js Weill Medical College, Cornell University (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $860,751 for 1,456 claims, against $232,067 paid for services in 2024. Lundbeck LLC reported $184.17 in payments in 2025, mostly food and beverage.
Overview
| NPI | 1134248891 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Mar 27, 2007 |
| Last updated in NPPES | Apr 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Psychiatry & Neurology, Neurology Primary | 2084N0400X | 2009009698 | MO |
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 - Sleep Medicine (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 266 |
|---|---|
| Services billed | 35,934 across 21 procedure codes |
| Paid by Medicare | $232,067 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,456 · 2,077 30-day fills |
|---|---|
| Patients | 197 |
| Total drug cost | $860,751 |
| Generic share | 72% of claims |
Education and affiliations
| Medical school | Js Weill Medical College, Cornell University |
|---|---|
| Graduation year | 2004 |
| Medicare specialty | Sleep Medicine |
| Secondary specialties | Neurology |
| Telehealth | Offers telehealth |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish West County HospitalCreve Coeur, MO
- Missouri Baptist Medical CenterSaint Louis, MO
Industry payments (Open Payments)
- 2025$184.17 · 3 payments from 1 company
- 2024$289.69 · 13 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lundbeck LLC | $184.17 | 3 |
What the 2025 payments were for
- Food and Beverage$184.17 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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