Physician Profile
Charles Muller, M.D.
Unclaimed ProfileAbout Dr. Muller
Charles Muller, M.D. practices gastroenterology in Chicago, IL. Charles is a 2015 graduate of University of Chicago, Pritzker School of Medicine. Charles is also listed as specializing in internal medicine. Medicare claims data shows Charles provided 441 services to 420 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (312) 695-5620
- Email not available
Practice Locations
259 E ERIE ST STE 1600
Chicago, IL 60611
Conditions Commonly Evaluated or Treated
Within Gastroenterology 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
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
441 services · 420 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
74 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
67 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
62 |
| Measurement of hydrogen in breath to test for stomach and bowel symptoms | Treatment | 91065 |
11 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
98 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
71 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
21 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
13 |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
12 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
12 |
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 5
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 gastroenterologists in Chicago 8
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at University of Chicago, Pritzker School of Medicine 7
Other providers in the same specialty who trained at the same institution.
Class of 2015 at University of Chicago, Pritzker School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 8
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Charles Muller?
Charles Muller is a gastroenterologist in Chicago, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
What is Charles Muller's address?
Charles Muller is listed at 259 E Erie St Ste 1600, Chicago, IL 60611. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Charles Muller?
The number on file is (312) 695-5620. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Charles Muller?
Charles Muller's National Provider Identifier is 1699156133. 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 Charles Muller train?
Charles Muller attended University of Chicago, Pritzker School of Medicine, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Charles Muller have?
Charles Muller has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What procedures does Charles Muller perform?
According to Medicare billing data, Charles Muller performs procedures including biopsy of large bowel using a flexible endoscope, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and removal of polyps or growths of large bowel using an endoscope with mechanical snare; provides treatments such as measurement of hydrogen in breath to test for stomach and bowel symptoms, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Charles Muller's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Charles Muller. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.