DR. CHRISTIAN C NWANKWO (MD) – Nephrology Physician, NPI 1679772198
Nephrology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,351 EMERGENCY MEDICINE in MO
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Provider Addresses for DR. CHRISTIAN C NWANKWO (MD)
10004, Kennerly Road, Sappington, Saint Louis County, Missouri, 63128, United States
SUITE 374B
SAINT LOUIS, MO 631282141
Phone: (314) 842-9669
Fax: (314) 842-1017
Type: Mailing
PO BOX 802841
KANSAS CITY, MO 641802841
Phone: (314) 842-9669
Fax: (314) 842-1017
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 73 Open Payments records for all available years, with a total value of $2,484.
Total Amount is formed as General ($2,484) + Research ($0) + Ownership ($0) = $2,484.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: AKEBIA THERAPEUTICS INC ($1,020).
Total Amount
$2,484
General + Research + Ownership
Payments
73
Total payment records
General Amount
$2,484
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AKEBIA THERAPEUTICS INC | $1,020 |
| AstraZeneca Pharmaceuticals LP | $262 |
| GlaxoSmithKline, LLC. | $187 |
| Amgen Inc. | $140 |
| Daiichi Sankyo Inc. | $105 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-08-17
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100817001219 | I | Internal Medicine | MO | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 778 | 217 | $0 |
| 90960 | Dialysis services, 4 or more physician visits per month (20 years or older) | 379 | 67 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 134 | 57 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 101 | 94 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 99 | 89 | $0 |
Insurance plans in this area (ZIP 63128)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| INTERNAL MEDICINE | MO | 90961 | Dialysis services (2-3 physician visits per month), patient 20 years of age and older | 179 | 46 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Nephrology | IL | |
| Nurse Practitioner | MO | |
| N E P H R O L O G Y | MO | |
| Nurse Practitioner | MO | |
| N E P H R O L O G Y | MO | |
| Nurse Practitioner | MO | |
| N E P H R O L O G Y | MO |
Reviews
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