DR. CHIEDU CHARLES ONUNKWO (M.D.) – Infectious Disease Physician, NPI 1992752018
Infectious Disease Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
3,517 INTERNAL MEDICINE in IN
Provider Addresses for DR. CHIEDU CHARLES ONUNKWO (M.D.)
621 MEMORIAL DR STE 624
SOUTH BEND, IN 466011063
Phone: (574) 647-8177
Fax: (574) 647-8536
Type: Location
5314 Lincolnway E
Mishawaka, IN 465444249
Phone: (574) 256-9032
Fax: (574) 256-9049
Type: Location
500 Arcade Ave Ste 210
Elkhart, IN 465142485
Phone: (574) 389-5656
Type: Location
710, North Niles Avenue, South Bend, Saint Joseph County, Indiana, 46617, United States
SOUTH BEND, IN 466171924
Phone: (574) 647-1610
Fax: (574) 237-6069
Type: Mailing
Lincolnway West, Mishawaka, Saint Joseph County, Indiana, 46561, United States
MISHAWAKA, IN 465444249
Phone: (574) 256-9032
Fax: (574) 256-9049
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 6 Open Payments records for all available years, with a total value of $173.
Total Amount is formed as General ($173) + Research ($0) + Ownership ($0) = $173.
Last reported payment date: 2024-08-07 • Largest payer in this snapshot: ABBVIE INC. ($173).
Total Amount
$173
General + Research + Ownership
Payments
6
Total payment records
General Amount
$173
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-08-07
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $173 |
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: 2017-07-21
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20160914000901 | I | Infectious Disease | GA | TBD |
| I20170721000181 | I | Infectious Disease | IN | 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 | 198 | 90 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 112 | 40 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 106 | 92 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 74 | 70 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 32 | 26 | $0 |
Insurance plans in this area (ZIP 46601)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Cardiovascular Disease (Cardiology), Interventional Cardiology | IN | |
| Nurse Practitioner | IN | |
| - | IN | |
| Qualified Audiologist | IN | |
| Nurse Practitioner | IN | |
| - | IN | |
| Nurse Practitioner | IN | |
| - | IN | |
| General Surgery | IN | |
| - | IN |
Reviews
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