Provider Profile
Joy Liu
Unclaimed ProfileAbout Joy Liu
Based in Chicago, IL, Joy Liu is listed in the NPI registry under gastroenterology. Joy is also listed as specializing in internal medicine. According to Medicare claims data, Joy cared for 374 Medicare patients across 403 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
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
- Difficulty Swallowing
- Hemorrhoids
- Irritable Bowel Syndrome
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Autoimmune Hepatitis
- Cirrhosis
- Enlarged Veins in Esophagus
- Fatty Liver Disease
- Fluid in Abdomen
- Hepatitis B
- Hepatitis C
- Iron Overload
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
- Blocked Bile Duct
Procedures & services
Most searched procedures
Lower endoscopy
- Colon Polyp Removal
- Endoscopic Treatment for GI Bleeding
- Flexible Sigmoidoscopy
Upper endoscopy
- Advanced Polyp Removal
- Stretching the Esophagus
Capsule and physiology testing
- Esophageal Motility Test
- Pelvic Floor Muscle Test
- Pill Camera Endoscopy
Diagnostic Testing
Liver procedures
- Abdominal Fluid Drainage
- Esophageal Banding
- FibroScan
Treatments
Procedures Most Often Billed to Medicare
403 services · 374 patients · 15 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
70 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
37 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
16 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
49 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
31 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
28 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
25 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
22 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
21 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
20 |
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 4
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 gastroenterology specialists in Chicago 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2015 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of polyps or growths of large bowel using an endoscope with mechanical snare 8
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Liu?
Dr. Liu 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
What is Dr. Liu's address?
Dr. Liu 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 Dr. Liu?
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 Dr. Liu's NPI number?
Dr. Liu's National Provider Identifier is 1558742072. 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. Liu train?
Dr. Liu attended Other, graduating in 2015. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Liu been practicing?
Dr. Liu has 11 years experience. Calculated from a graduation year of 2015, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Liu perform?
According to Medicare billing data, Dr. Liu performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and biopsy of large bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Liu confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Liu. 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.