Physician Profile
Unclaimed ProfileAbout KALLWITZ
Eric R Kallwitz, M.D. practises gastroenterology in Chicago, IL. Eric is a 2002 graduate of Rush Medical College of Rush University. Eric is also listed as specialising in internal medicine.
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
Common questions
What is Dr. Kallwitz's specialty?
Dr. Kallwitz 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 can I find Dr. Kallwitz?
Dr. Kallwitz is listed at 840 S WOOD ST FL 7 MC 716, Chicago, IL 60612. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Kallwitz?
The number on file is (312) 996-6651. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Kallwitz?
Dr. Kallwitz's National Provider Identifier is 1275716607. 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 Dr. Kallwitz's medical education?
Dr. Kallwitz attended Rush Medical College of Rush University, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Kallwitz have?
Dr. Kallwitz has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Kallwitz known for?
According to Medicare billing data, Dr. Kallwitz 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
Is Dr. Kallwitz's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Kallwitz. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (312) 996-6651
- Email not available
Practice Locations
840 S WOOD ST FL 7 MC 716
Chicago, IL 60612
Procedures Most Often Billed to Medicare
888 services · 525 patients · 11 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
305 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
199 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
140 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
91 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
29 |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
27 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
24 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
24 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
20 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
18 |
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.
Other gastroenterology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
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.
More connections — 23 related providers in 3 groups
Other gastroenterology specialists in Chicago 8
Same specialty, same city.
Trained at Rush Medical College of Rush University 7
Other providers in the same specialty who trained at the same institution.
Class of 2002 at Rush Medical College of Rush University 8
Providers who graduated from the same medical school in the same year.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.