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- 2650 Ridge Ave, Evanston, IL 60201
About Dr. Denham
Ervin Denham, MD is a healthcare provider in Evanston, IL specializing in surgery. Ervin trained at University of Louisville School of Medicine, graduating in 1993. Medicare claims data shows Ervin provided 272 services to 264 patients. The services billed most often include new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more, and repair of groin hernia using an endoscope. This provider record is associated with NPI 1881658193.
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
- (847) 570-4120
- Email not available
Practice Locations
2650 RIDGE AVE
Evanston, IL 60201
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
Digestive
Digestive health
Infections
Minor surgery
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
272 services · 264 patients · 11 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Repair of groin hernia using an endoscope | Procedure | 49650 |
42 | More than most peers in Surgery |
| Removal of gallbladder using an endoscope | Procedure | 47562 |
12 | Less often than most peers in Surgery |
| Initial repair of sliding hernia of abdomen, less than 3 cm in length | Procedure | 49591 |
11 | Less often than most 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 |
50 | More than most 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 |
42 | More than most 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 |
28 | More 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 |
25 | As often as other 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 |
19 | 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 |
18 | More often than most peers in Surgery |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
13 | 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.
Related specialists at this location 8
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.
Other general surgeons in Evanston 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Louisville School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1993 at University of Louisville School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Repair of groin hernia using an endoscope 8
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Denham?
Dr. Denham is a general surgeon in Evanston, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Surgery”.
NPI registry
What is Dr. Denham's address?
Dr. Denham is listed at 2650 Ridge Ave, Evanston, IL 60201. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Denham?
The number on file is (847) 570-4120. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Denham?
Dr. Denham's National Provider Identifier is 1881658193. 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. Denham train?
Dr. Denham attended University of Louisville School of Medicine, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Denham have?
Dr. Denham has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Denham perform?
According to Medicare billing data, Dr. Denham performs procedures including repair of groin hernia using an endoscope, removal of gallbladder using an endoscope and initial repair of sliding hernia of abdomen, less than 3 cm in length, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Denham's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Denham. If this is you, claiming it is free.
Guide.md
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