Doctor profile · Federal record
Dr. Constantine Wonais, MD
Internal Medicine Physician · Naperville, IL
- NPI 1457340267
- MIPS 91.4 / 100 · 2023
- 21 yrs on file
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2255 Monarch Dr
Naperville, IL 605634164
(630) 300-1125
fax (630) 300-1394
Credentials & registration
- NPI registered
- October 2005 — 21 yrs on file
- Profile last updated
- February 4, 2021
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Illinois #036062093
- Medicaid
- IL #036062093 2
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1457340267. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
719
Distinct HCPCS
7
Medicare allowed
$52,626
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 247 | 92 | $135 | |
85610 |
Blood test, clotting time | 144 | 19 | $4 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 133 | 71 | $96 | |
93793 |
Anticoagulant management of patient taking warfarin | 109 | 15 | $12 | |
81003 |
Automated urinalysis test | 41 | 24 | $2 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 26 | 26 | $136 | |
G0180 |
Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and | 19 | 18 | $55 |
In context: peer comparison
Among 37 peers in Naperville Internal Medicine Physician, average services per provider: 101. This provider delivers 7.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
1,304
Patients
306
Total drug cost
$22,090
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 181 | 47 | $2,819 |
| Levothyroxine Sodium | Generic | 154 | 31 | $2,248 |
| Amlodipine Besylate | Generic | 118 | 29 | $1,479 |
| Donepezil Hcl | Generic | 114 | 24 | $1,822 |
| Metoprolol Succinate | Generic | 114 | 28 | $2,215 |
| Lisinopril | Generic | 95 | 25 | $1,596 |
| Losartan Potassium | Generic | 82 | 20 | $1,138 |
| Omeprazole | Generic | 67 | 16 | $1,015 |
| Simvastatin | Generic | 66 | 16 | $520 |
| Warfarin Sodium | Generic | 63 | 17 | $1,233 |
Frequently asked questions
What is Dr. Constantine Wonais's medical specialty?
Dr. Constantine Wonais practices Internal Medicine Physician in Naperville, IL.
Where does Dr. Constantine Wonais practice?
Dr. Constantine Wonais practices at 2255 Monarch Dr, Naperville, IL 605634164. Office phone: 6303001125.
What is Dr. Constantine Wonais's NPI?
Dr. Constantine Wonais's National Provider Identifier (NPI) is 1457340267, issued by NPPES.
What procedures does Dr. Constantine Wonais commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Blood test, clotting time (HCPCS 85610); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.