DOUGLAS B AACH (MD) – Surgery Physician, NPI 1508817040
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,422 GENERAL SURGERY in IL
Provider Addresses for DOUGLAS B AACH (MD)
1414 CROSS STREET
SUITE 330
SHILOH, IL 622692998
Phone: (618) 277-7400
Fax: (618) 277-7422
Type: Location
340, West Lincoln Street, Belleville, Saint Clair County, Illinois, 62220, United States
SUITE 500
BELLEVILLE, IL 622201900
Phone: (618) 277-7400
Fax: (618) 277-7422
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2005-02-21
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20050221000132 | I | General Surgery | IL | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 171 | 116 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 46 | 46 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 27 | 25 | $0 |
| 19083 | Biopsy of breast and placement of locating device using ultrasound, first growth | 18 | 18 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 15 | 15 | $0 |
Insurance plans in this area (ZIP 62269)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GENERAL SURGERY | IL | 76942 | Ultrasonic guidance imaging supervision and interpretation for insertion of needle | 23 | 22 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Colorectal Surgery (Proctology), General Surgery | GA | |
| Family Practice | IL | |
| General Surgery | IL | |
| Physician Assistant | IL | |
| Family Practice | IL | |
| Family Practice | IL | |
| Family Practice | MO | |
| Family Practice | IL | |
| Nurse Practitioner | IL | |
| - | IL |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.