Doctor profile · Federal record
Dr. HARJYOT CHAHAL, M.D.
Endocrinology, Diabetes & Metabolism Physician (CMS: ENDOCRINOLOGY) · Internal Medicine Physician · Hospitalist Physician · VERNON HILLS, IL
- NPI 1306160247
- Accepts Medicare
- 23 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
870 N MILWAUKEE AVE FL 2
VERNON HILLS, IL 600611521
(847) 535-7647
fax (847) 535-8109 - Additional location
-
660 N Westmoreland Rd
Lake Forest, IL 600451659
(847) 234-5600
Credentials & registration
- NPI registered
- March 2010 — 16 yrs on file
- Profile last updated
- October 16, 2025
- Year of graduation
- 2003 — 23 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State licenses (2)
- Illinois #036124980 · Illinois #036.124980
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1306160247. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
846
Distinct HCPCS
10
Medicare allowed
$85,942
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 261 | 160 | $184 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 223 | 85 | $35 | |
83036 |
Hemoglobin a1c level | 77 | 58 | $10 | |
36415 |
Insertion of needle into vein for collection of blood sample | 71 | 54 | $8 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 60 | 60 | $229 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 34 | 21 | $80 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 28 | 13 | $117 | |
82947 |
Blood glucose (sugar) level | 21 | 18 | $4 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 19 | 17 | $133 | |
95250 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with provider supplied equipment | 18 | 18 | $153 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 70. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$70
Transactions
2
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Dexcom, Inc. | 1 | $45.78 | |
| Lilly USA, LLC | 1 | $24.45 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,189
Patients
349
Total drug cost
$978,029
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ozempic (Semaglutide) | Brand | 223 | 62 | $394,971 |
| Jardiance (Empagliflozin) | Brand | 150 | 36 | $156,046 |
| Levothyroxine Sodium | Generic | 132 | 44 | $1,974 |
| Trulicity (Dulaglutide) | Brand | 131 | 31 | $203,561 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 93 | 35 | $1,658 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 90 | 29 | $61,914 |
| Novolog Flexpen (Insulin Aspart) | Brand | 68 | 25 | $75,325 |
| Alendronate Sodium | Generic | 63 | 24 | $765 |
| Nano 2nd Gen Pen Needle (Pen Needle, Diabetic) | Brand | 54 | 25 | $6,633 |
| Metformin Hcl | Generic | 42 | 13 | $197 |