Zachary David Crees, MD
NPI 1225419344ActiveIndividual· Internal Medicine, Medical Oncology· Saint Louis, MO
Internal Medicine, Medical Oncology (MD) in Saint Louis, Missouri, trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) (class of 2015). Their prescriptions cost Medicare Part D more than their services did: $4,782,279 for 1,810 claims, against $1,175,306 paid for services in 2024. Gamida Cell Inc. was the largest of 7 companies reporting payments in 2025, $17,443 in all, mostly consulting fees.
Overview
| NPI | 1225419344 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 15, 2015 |
| Last updated in NPPES | Apr 17, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Medical Oncology Primary | 207RX0202X | 2017028204 | MO |
| Internal Medicine | 207R00000X | 2017028204 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Medical Oncology (MO) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 370 |
|---|---|
| Services billed | 47,930 across 135 procedure codes |
| Paid by Medicare | $1,175,306 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,810 · 2,322 30-day fills |
|---|---|
| Patients | 153 |
| Total drug cost | $4,782,279 |
| Generic share | 76% of claims |
Education and affiliations
| Medical school | University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) |
|---|---|
| Graduation year | 2015 |
| Medicare specialty | Medical Oncology |
| Secondary specialties | Internal Medicine |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliations
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish St Peters HospitalSaint Peters, MO
- Barnes-Jewish West County HospitalCreve Coeur, MO
- Christian Hospital NortheastSaint Louis, MO
- Memorial HospitalBelleville, IL
Industry payments (Open Payments)
- 2025$17,443 · 16 payments from 7 companies
- 2024$9,069 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Gamida Cell Inc. | $11,798 | 6 |
| Vertex Pharmaceuticals Incorporated | $4,767 | 2 |
| Taiho Oncology, Inc. | $427.20 | 4 |
| Astellas Pharma Global Development | $193.73 | 1 |
| Astrazeneca Pharmaceuticals LP | $115.37 | 1 |
What the 2025 payments were for
- Consulting Fee$16,523 · 7 payments
- Food and Beverage$302.74 · 3 payments
- Compensation for serving as faculty or as a speaker for a medical education program$271.74 · 1 payment
- Travel and Lodging$270.83 · 4 payments
- Education$75.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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