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- 1414 Cross Street, Suite 330, Shiloh, IL 62269
About Dr. Aach
Based in Shiloh, IL, Douglas B. Aach, MD is listed in the NPI registry under surgery. Douglas graduated from University of Missouri, Kansas City, School of Medicine in 1986. According to Medicare claims data, Douglas cared for 267 Medicare patients across 282 services. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. NPI 1508817040 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (618) 277-7400
- Email not available
Practice Locations
1414 CROSS STREET SUITE 330
Shiloh, IL 62269
Conditions Commonly Evaluated or Treated
Within Surgery (Unspecified) generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Breast conditions
Cancer
- Colon cancer
- Esophageal cancer
- Liver cancer
- Neuroendocrine Tumors
- Pancreatic cancer
- Soft-tissue sarcoma
- Stomach cancer
- Thyroid cancer
Colorectal
Digestive
- Abdominal adhesions
- Acid reflux
- Acute pancreatitis
- Bowel obstruction
- Colon polyps
- Diverticulitis
- Gastroparesis
- Peptic ulcer disease
Digestive & blood
Digestive health
- Crohn's disease
- Fecal incontinence
- Perforated bowel
- Severe chronic constipation
- Swallowing difficulties
- Ulcerative colitis
Endocrine
Infections
Lumps & bumps
Lymphatic
Minor surgery
Skin & scars
Skin & soft tissue
Skin cancer
Vascular
Weight & metabolism
Wound care
Wounds
Procedures & services
Endocrine
Vascular
- Blood Clot Removal Surgery
- Carotid endarterectomy
- Leg bypass surgery
- Varicose vein removal
Wounds
Most searched procedures
Abdominal
Abdominal surgery
Bariatric
Breast surgery
Cancer
Cancer surgery
Colorectal
- Anal fistula surgery
- Anal Sphincter Repair
- Colon resection
- Hemorrhoid removal
- Ostomy reversal
- Ostomy surgery
- Rectal prolapse repair
- Surgery for chronic anal fissure
Consultations
Diagnostic
- Colonoscopy
- Skin lump biopsy
Digestive
Digestive health
- Endoscopy
- Peroral endoscopic myotomy
Infections
Minor surgery
- Fishhook or embedded splinter removal
- Ingrown toenail removal
Post-op care
Reconstruction
Skin & soft tissue
- Cyst Removal
- Lipoma removal
- Mole removal
- Pilonidal cyst surgery
- Scar revision surgery
- Skin Tag Removal
Skin cancer
Vascular & cancer
Weight loss
Wound care
Procedures Most Often Billed to Medicare
282 services · 267 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Biopsy of breast and placement of locating device using ultrasound, first growth | Procedure | 19083 |
22 | As often as other peers in Surgery |
| Partial removal of breast | Procedure | 19301 |
16 | Less often than most peers in Surgery |
| Imaging of lymph nodes during surgery | Procedure | 38900 |
13 | Less often than most peers in Surgery |
| Biopsy or removal of deep lymph nodes of underarm | Procedure | 38525 |
13 | Less often than most peers in Surgery |
| Biopsy of breast and placement of locating device using x-ray with needle, first growth | Procedure | 19081 |
11 | Less often than most peers in Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
91 | More often than most peers in Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
44 | More often than most peers in Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
30 | As often as other peers in Surgery |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
27 | As often as other peers in Surgery |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
15 | Less often than most peers in Surgery |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other general surgeons at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 18 related providers in 3 groups
Trained at University of Missouri, Kansas City, School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at University of Missouri, Kansas City, School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of breast and placement of locating device using ultrasound, first growth 2
Providers in IL who bill this service to Medicare most often.
Common questions
What does Dr. Aach specialize in?
Dr. Aach is a general surgeon in Shiloh, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Surgery”.
NPI registry
Where is Dr. Aach located?
Dr. Aach is listed at 1414 Cross Street Suite 330, Shiloh, IL 62269. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Aach's phone number?
The number on file is (618) 277-7400. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Aach's NPI number?
Dr. Aach's National Provider Identifier is 1508817040. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Aach go to medical school?
Dr. Aach attended University of Missouri, Kansas City, School of Medicine, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Aach been practicing?
Dr. Aach has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Aach do most often?
According to Medicare billing data, Dr. Aach performs procedures including biopsy of breast and placement of locating device using ultrasound, first growth, partial removal of breast and imaging of lymph nodes during surgery, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Aach confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Aach. If this is you, claiming it is free.
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