Doctor profile · Federal record
Dr. Karthik Subbu, M.D.
Endocrinology, Diabetes & Metabolism Physician (CMS: Internal Medicine) · Student in an Organized Health Care Education/Training Program · Geneva, IL
- NPI 1760974950
- Accepts Medicare
- MIPS 91.3 / 100 · 2023
- 8 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
302 Randall RD Ste 304
Geneva, IL 601344205
(630) 208-6775
fax (630) 208-7937 - Additional location
-
1120 W Michigan St
Indianapolis, IN 462025209
(317) 278-2694
fax (317) 278-2650 - Additional location
-
100 Eastowne Dr
Chapel Hill, NC 275142286
(984) 974-2950
Credentials & registration
- NPI registered
- June 2018 — 8 yrs on file
- Profile last updated
- December 20, 2023
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State licenses (2)
- Illinois #036164909 · Indiana #11019958A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1760974950. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
76
Distinct HCPCS
4
Medicare allowed
$8,021
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 28 | 24 | $133 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 21 | 21 | $173 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 16 | 13 | $35 | |
83036 |
Hemoglobin a1c level | 11 | 11 | $10 |
In context: peer comparison
Among 5 peers in Geneva Endocrinology, Diabetes & Metabolism Physician, average services per provider: 469. This provider delivers 0.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
565
Patients
209
Total drug cost
$379,590
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 106 | 44 | $1,606 |
| Ozempic (Semaglutide) | Brand | 64 | 21 | $82,367 |
| Trulicity (Dulaglutide) | Brand | 52 | 12 | $67,915 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 48 | 20 | $687 |
| Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) | Brand | 45 | 28 | $24,955 |
| Metformin Hcl | Generic | 44 | 13 | $436 |
| Nano 2Nd Gen Pen Needle (Pen Needle, Diabetic) | Brand | 31 | 13 | $2,026 |
| Mounjaro (Tirzepatide) | Brand | 26 | 0 | $42,022 |
| Atorvastatin Calcium | Generic | 24 | 12 | $274 |
| Tymlos (Abaloparatide) | Brand | 23 | 0 | $54,440 |
Hospital affiliations
Frequently asked questions
What is Dr. Karthik Subbu's medical specialty?
Dr. Karthik Subbu practices Endocrinology, Diabetes & Metabolism Physician in Geneva, IL.
Where does Dr. Karthik Subbu practice?
Dr. Karthik Subbu practices at 302 Randall RD Ste 304, Geneva, IL 601344205. Office phone: 6302086775.
What is Dr. Karthik Subbu's NPI?
Dr. Karthik Subbu's National Provider Identifier (NPI) is 1760974950, issued by NPPES.
Does Dr. Karthik Subbu accept Medicare assignment?
Yes. Dr. Karthik Subbu accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Karthik Subbu commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204); 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.