Doctor profile · Federal record
Dr. Justin Gan, M.D.
Internal Medicine Physician (CMS: Rheumatology) · Skokie, IL
- NPI 1851549067
- Accepts Medicare
- MIPS 90.4 / 100 · 2023
- 19 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
9650 Gross Point RD Ste 3900
Skokie, IL 600765085
(847) 570-2503 - Mailing address
-
2650 Ridge Ave Ste 1223
Evanston, IL 602011700
Credentials & registration
- NPI registered
- August 2008 — 18 yrs on file
- Profile last updated
- March 3, 2021
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- Illinois #076047
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1851549067. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,076
Distinct HCPCS
10
Medicare allowed
$119,233
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 324 | 185 | $103 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 296 | 162 | $102 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 135 | 76 | $149 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 112 | 75 | $148 | |
20610 |
Aspiration and/or injection of fluid from large joint | 42 | 24 | $57 | |
20610 |
Aspiration and/or injection of fluid from large joint | 42 | 29 | $54 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 28 | 23 | $70 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 23 | 12 | $127 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 17 | 16 | $69 | |
20611 |
Aspiration and/or injection of fluid large joint using ultrasound guidance | 16 | 12 | $84 |
In context: peer comparison
Among 21 peers in Skokie Internal Medicine Physician, average services per provider: 110. This provider delivers 9.8× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,130
Patients
646
Total drug cost
$76,075
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Prednisone | Generic | 424 | 117 | $5,951 |
| Hydroxychloroquine Sulfate | Generic | 245 | 82 | $20,861 |
| Methotrexate (Methotrexate Sodium) | Brand | 209 | 61 | $11,635 |
| Gabapentin | Generic | 165 | 41 | $5,042 |
| Allopurinol | Generic | 139 | 36 | $2,340 |
| Alendronate Sodium | Generic | 138 | 40 | $2,119 |
| Tizanidine Hcl | Generic | 122 | 38 | $2,065 |
| Tramadol Hcl | Generic | 113 | 21 | $1,317 |
| Duloxetine Hcl | Generic | 108 | 32 | $3,519 |
| Celecoxib | Generic | 102 | 34 | $7,295 |
Hospital affiliations
Frequently asked questions
What is Dr. Justin Gan's medical specialty?
Dr. Justin Gan practices Internal Medicine Physician in Skokie, IL.
Where does Dr. Justin Gan practice?
Dr. Justin Gan practices at 9650 Gross Point RD Ste 3900, Skokie, IL 600765085. Office phone: 8475702503.
What is Dr. Justin Gan's NPI?
Dr. Justin Gan's National Provider Identifier (NPI) is 1851549067, issued by NPPES.
Does Dr. Justin Gan accept Medicare assignment?
Yes. Dr. Justin Gan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Justin Gan 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 99214); Established patient office or other outpatient visit (HCPCS 99215). Source: CMS Medicare Physician & Other Practitioners file.