Doctor profile · Federal record
Dr. Aaron Shiels, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Rockford, IL
- NPI 1467448324
- Accepts Medicare
- MIPS 60.3 / 100 · 2023
- 29 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
401 Roxbury RD
Rockford, IL 611075075
(815) 397-7340
fax (815) 397-2156
Credentials & registration
- NPI registered
- September 2005 — 21 yrs on file
- Profile last updated
- September 6, 2007
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Illinois #36110865
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1467448324. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
4,943
Distinct HCPCS
10
Medicare allowed
$182,535
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3380 |
Injection, vedolizumab, 1 mg | 3,900 | 11 | $22 | |
88305 |
Pathology examination of tissue using a microscope, intermediate complexity | 220 | 131 | $32 | |
G0500 |
Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 202 | 201 | $5 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 119 | 119 | $247 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 80 | 71 | $123 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 79 | 52 | $77 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 65 | 65 | $127 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 57 | 57 | $100 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 43 | 39 | $86 | |
43235 |
Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 32 | 32 | $110 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 208. This provider delivers 24× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
834
Patients
323
Total drug cost
$315,062
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 211 | 67 | $3,081 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 137 | 136 | $1,812 |
| Pantoprazole Sodium | Generic | 74 | 20 | $1,600 |
| Ursodiol | Generic | 73 | 14 | $18,153 |
| Budesonide Dr (Budesonide) | Brand | 42 | 12 | $12,479 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 42 | 41 | $904 |
| Dicyclomine Hcl | Generic | 40 | 11 | $764 |
| Mesalamine | Generic | 32 | 11 | $32,881 |
| Azathioprine | Generic | 31 | 0 | $1,656 |
| Esomeprazole Magnesium | Generic | 31 | 11 | $2,522 |
Hospital affiliations
Frequently asked questions
What is Dr. Aaron Shiels's medical specialty?
Dr. Aaron Shiels practices Gastroenterology Physician in Rockford, IL.
Where does Dr. Aaron Shiels practice?
Dr. Aaron Shiels practices at 401 Roxbury RD, Rockford, IL 611075075. Office phone: 8153977340.
What is Dr. Aaron Shiels's NPI?
Dr. Aaron Shiels's National Provider Identifier (NPI) is 1467448324, issued by NPPES.
Does Dr. Aaron Shiels accept Medicare assignment?
Yes. Dr. Aaron Shiels accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Aaron Shiels commonly perform?
Top Medicare-reported procedures in 2023: Injection, vedolizumab, 1 mg (HCPCS J3380); Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (HCPCS G0500). Source: CMS Medicare Physician & Other Practitioners file.