Physician Profile
Unclaimed ProfileAbout Dr. Dyer
Based in Chicago, IL, Julia A Dyer, M.D., MPH is listed in the NPI registry under gastroenterology. Julia graduated from University of California, Geffen School of Medicine in 1976. According to Medicare claims data, Julia cared for 98 Medicare patients across 113 services.
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
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (773) 388-1100
- Email not available
Practice Locations
25 E WASHINGTON ST STE 1116
Chicago, IL 60602
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
Biliary and pancreas
- Acute pancreatitis
- Cholangitis
- Chronic pancreatitis
- Common bile duct stones
- Gallstones
- Pancreatic cysts
- Primary biliary cholangitis
- Primary sclerosing cholangitis
Colon and anorectal
- Anal fissure
- Colon polyps
- Colorectal cancer
- Diverticulosis and uncomplicated diverticulitis
- Hemorrhoids
- Lower gastrointestinal bleeding
Esophagus and swallowing
- Achalasia
- Acid reflux (GERD)
- Barrett's esophagus
- Difficulty swallowing
- Eosinophilic esophagitis
- Esophageal stricture
- Esophagitis
Functional bowel and motility
- Chronic constipation
- Chronic diarrhea
- Fecal incontinence
- Intestinal pseudo-obstruction
- Irritable bowel syndrome
- Small intestinal bacterial overgrowth
Inflammatory and immune
Liver
- Alcohol-associated liver disease
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatic encephalopathy
- Hepatitis B
- Hepatitis C
- Metabolic dysfunction-associated steatohepatitis
- Portal hypertension
- Wilson disease
Stomach and duodenum
- Celiac disease
- Functional dyspepsia
- Gastritis
- Gastroparesis
- H. pylori infection
- Peptic ulcer disease
Procedures & services
Lower endoscopy
- Colon polyp removal
- Colonoscopy
- Diagnostic colonoscopy
- Endoscopic control of gastrointestinal bleeding
- Flexible sigmoidoscopy
- Screening colonoscopy
Upper endoscopy
- Endoscopic mucosal resection
- Endoscopic submucosal dissection
- Esophageal biopsy
- Esophageal dilation
- Stomach biopsy
- Upper endoscopy
Capsule and physiology testing
- Ambulatory reflux monitoring
- Anorectal manometry
- Capsule endoscopy
- Esophageal manometry
- Hydrogen and methane breath testing
Liver procedures
Procedures Most Often Billed to Medicare
113 services · 98 patients · 3 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
61 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
40 |
| New patient office or other outpatient visit with straightforward medical decision making, if using time, 15 minutes or more | Office visit | 99202 |
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.
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 gastroenterology specialists in Chicago 8
Same specialty, same city.
Trained at University of California, Geffen School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 8 related providers in 1 group
Class of 1976 at University of California, Geffen School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Dyer specialize in?
Dr. Dyer is a gastroenterology in Chicago, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where is Dr. Dyer located?
Dr. Dyer is listed at 25 E WASHINGTON ST STE 1116, Chicago, IL 60602. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Dyer's phone number?
The number on file is (773) 388-1100. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Dyer's NPI number?
Dr. Dyer's National Provider Identifier is 1871575654. 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. Dyer go to medical school?
Dr. Dyer attended University of California, Geffen School of Medicine, graduating in 1976. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Dyer been practicing?
Dr. Dyer has 50 years experience. Calculated from a graduation year of 1976, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Dyer do most often?
According to Medicare billing data, Dr. Dyer the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Dyer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Dyer. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.