Crystal Nnenne Azu, MD
NPI 1114457769ActiveIndividual· Internal Medicine, Cardiovascular Disease· Saint Louis, MO
Internal Medicine, Cardiovascular Disease (MD) in Saint Louis, Missouri, trained at University of Chicago, Pritzker School of Medicine (class of 2017). Their prescriptions cost Medicare Part D more than their services did: $67,965 for 405 claims, against $9,542 paid for services in 2024. Amgen Inc. was the largest of 3 companies reporting payments in 2025, $300.48 in all, mostly food and beverage.
Overview
| NPI | 1114457769 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Jun 15, 2017 |
| Last updated in NPPES | Apr 15, 2025 |
| Certified by provider | May 29, 2020 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Cardiovascular Disease Primary | 207RC0000X | 2024030894 | MO |
| Radiology, Diagnostic Radiology | 2085R0202X | 2024030894 | MO |
| Internal Medicine | 207R00000X | 2024030894 | 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 - Cardiovascular Disease (Cardiology) (MO); Practitioner - Internal Medicine (NC) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 99 |
|---|---|
| Services billed | 191 across 26 procedure codes |
| Paid by Medicare | $9,542 |
Part D prescriptions in 2024
| Prescriptions (claims) | 405 · 924 30-day fills |
|---|---|
| Patients | 99 |
| Total drug cost | $67,965 |
| Generic share | 84% of claims |
Education and affiliations
| Medical school | University of Chicago, Pritzker School of Medicine |
|---|---|
| Graduation year | 2017 |
| Medicare specialty | Cardiovascular Disease (Cardiology) |
| Secondary specialties | Diagnostic Radiology, Internal Medicine |
Medical group
- Washington UniversitySaint Louis, MO · 3,029 clinicians
Hospital affiliations
- Alton Memorial HospitalAlton, IL
- Barnes Jewish HospitalSaint Louis, MO
- Barnes-Jewish West County HospitalCreve Coeur, MO
- Memorial HospitalBelleville, IL
- Missouri Baptist Medical CenterSaint Louis, MO
Industry payments (Open Payments)
- 2025$300.48 · 7 payments from 3 companies
- 2024$291.03 · 2 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Amgen Inc. | $196.55 | 4 |
| Agepha Pharma Fz LLC | $81.69 | 1 |
| Zoll Services LLC (A/K/A Zoll Lifecor Corp) | $22.24 | 2 |
What the 2025 payments were for
- Food and Beverage$300.48 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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