Doctor profile · Federal record
Dr. Chioma Onyenwenyi, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Internal Medicine Physician · Chicago, IL
- NPI 1780972182
- Accepts Medicare
- 17 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1901 W. Harrison
Chicago, IL 606123714
(312) 864-6000 - Mailing address
-
40 E 9Th St Apt 916
Chicago, IL 606052145
Credentials & registration
- NPI registered
- July 2011 — 15 yrs on file
- Profile last updated
- January 9, 2024
- Year of graduation
- 2009 — 17 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State licenses (2)
- Illinois #036134539 · Illinois #125.059030
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1780972182. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
469
Distinct HCPCS
8
Medicare allowed
$50,353
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 185 | 129 | $104 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 114 | 100 | $152 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 63 | 38 | $36 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 27 | 24 | $102 | |
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 24 | 14 | $52 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 23 | 23 | $194 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 19 | 19 | $143 | |
76536 |
Ultrasound scan of head and neck soft tissue | 14 | 14 | $29 |
In context: peer comparison
Among 41 peers in this city , average services per provider: 186. This provider delivers 2.5× the peer median.Open Payments
Industry payments received
All-time total
$147
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| BETA BIONICS, INC. | 1 | $146.96 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
986
Patients
317
Total drug cost
$510,147
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 153 | 46 | $2,618 |
| Trulicity (Dulaglutide) | Brand | 143 | 33 | $255,736 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 86 | 34 | $1,431 |
| Ozempic (Semaglutide) | Brand | 79 | 16 | $92,948 |
| Alendronate Sodium | Generic | 78 | 22 | $1,332 |
| Metformin Hcl | Generic | 72 | 32 | $1,060 |
| Atorvastatin Calcium | Generic | 68 | 28 | $1,536 |
| Jardiance (Empagliflozin) | Brand | 65 | 24 | $84,649 |
| Glipizide | Generic | 60 | 20 | $709 |
| Novolog Flexpen (Insulin Aspart) | Brand | 40 | 11 | $34,675 |
Frequently asked questions
What is Dr. Chioma Onyenwenyi's medical specialty?
Dr. Chioma Onyenwenyi practices Endocrinology, Diabetes & Metabolism Physician in Chicago, IL.
Where does Dr. Chioma Onyenwenyi practice?
Dr. Chioma Onyenwenyi practices at 1901 W. Harrison, Chicago, IL 606123714. Office phone: 3128646000.
What is Dr. Chioma Onyenwenyi's NPI?
Dr. Chioma Onyenwenyi's National Provider Identifier (NPI) is 1780972182, issued by NPPES.
Does Dr. Chioma Onyenwenyi accept Medicare assignment?
Yes. Dr. Chioma Onyenwenyi accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Chioma Onyenwenyi commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99215); Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report (HCPCS 95251). Source: CMS Medicare Physician & Other Practitioners file.