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Edit this profileAt a glance
- 1740 W Taylor St, Dept 3449, Chicago, IL 60612
About Dr. Singer
Based in Chicago, IL, Marc Singer, M.D. is listed in the NPI registry under colorectal surgery (proctology). Marc graduated from University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) in 1997. Marc is also listed as specializing in colon & rectal surgery. Medicare claims data shows Marc provided 356 services to 261 patients. 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, subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes, and new patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more. NPI 1194732909 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
- (312) 704-2885
- Email not available
Practice Locations
1740 W TAYLOR ST DEPT 3449
Chicago, IL 60612
Conditions Commonly Evaluated or Treated
Within Colon and Rectal Surgery 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
Anorectal conditions
Anorectal disorders
Bowel disorders
- Bowel Blockage in Babies
- Chronic diarrhea
- Constipation From Pain Medicine
- Difficulty Emptying Bowels
- Severely Enlarged Colon
- Twisted Bowel
Bowel symptoms
Cancer
Colon conditions
Digestive emergencies
Infections
Infections & cysts
Inflammatory bowel disease
Inflammatory conditions
Ostomy & surgical complications
Pain
Pelvic disorders
Pelvic floor & structure
Skin conditions
Tumors & growths
Vascular & inflammatory
Procedures & services
Most searched procedures
Abdominal surgery
Anorectal procedures
Bowel management
Cancer screening
Cancer surgery
Diagnostic tests
Diagnostics
Digestive health
Endoscopy & minimally invasive
Excision & drainage
Fistula procedures
Hemorrhoid treatments
Inflammatory bowel surgery
Injections & pain relief
Minimally invasive surgery
Ostomy surgery
Pelvic floor & prolapse
Pelvic therapy
Reconstructive surgery
Therapy & rehabilitation
Procedures Most Often Billed to Medicare
356 services · 261 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
19 | More often than most peers in Colorectal Surgery (Proctology) |
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
16 | Less often than most peers in Colorectal Surgery (Proctology) |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
117 | More than most peers in Colorectal Surgery (Proctology) |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
53 | More often than most peers in Colorectal Surgery (Proctology) |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
40 | More often than most peers in Colorectal Surgery (Proctology) |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
35 | More often than most peers in Colorectal Surgery (Proctology) |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
26 | More than most peers in Colorectal Surgery (Proctology) |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
26 | As often as other peers in Colorectal Surgery (Proctology) |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
13 | Less often than most peers in Colorectal Surgery (Proctology) |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
11 | More often than most peers in Colorectal Surgery (Proctology) |
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.
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 colorectal surgery specialists in Chicago 8
Same specialty, same city.
Trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 7
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1997 at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of large bowel using a flexible endoscope 8
Providers in IL who bill this service to Medicare most often.
Common questions
What is Marc Singer's specialty?
Marc Singer is a colorectal surgery (proctology) in Chicago, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Marc Singer?
Marc Singer is listed at 1740 W Taylor St Dept 3449, Chicago, IL 60612. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Marc Singer?
The number on file is (312) 704-2885. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Marc Singer?
Marc Singer's National Provider Identifier is 1194732909. 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
What is Marc Singer's education?
Marc Singer attended University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 1997. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Marc Singer have?
Marc Singer has 29 years experience. Calculated from a graduation year of 1997, reported in the CMS National Downloadable File.
CMS public data
What is Marc Singer known for?
According to Medicare billing data, Marc Singer performs procedures including diagnostic exam of large bowel using a flexible endoscope and diagnostic exam of anus using an endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Marc Singer's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Marc Singer. If this is you, claiming it is free.
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