Physician Profile
Timothy J Heilizer, MD
Unclaimed ProfileAbout Dr. Heilizer
Timothy J Heilizer, MD practices colorectal surgery (proctology) in Chicago, IL. Timothy is also listed as specializing in surgery. According to Medicare claims data, Timothy cared for 226 Medicare patients across 273 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
- (773) 227-5914
- Email not available
Practice Locations
2338 W NORTH AVE
Chicago, IL 60647
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
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
273 services · 226 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
20 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
63 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
54 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
43 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
33 |
| 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 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
20 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
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.
Also at this address 3
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 Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1993 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of anus using an endoscope 8
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Heilizer?
Dr. Heilizer is a colorectal surgery (proctology) in Chicago, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “COLORECTAL SURGERY (PROCTOLOGY)”.
NPI registry
What is Dr. Heilizer's address?
Dr. Heilizer is listed at 2338 W NORTH AVE, Chicago, IL 60647. 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. Heilizer?
The number on file is (773) 227-5914. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Heilizer's NPI number?
Dr. Heilizer's National Provider Identifier is 1245347996. 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. Heilizer train?
Dr. Heilizer attended Other, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Heilizer been practicing?
Dr. Heilizer has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Heilizer perform?
According to Medicare billing data, Dr. Heilizer performs procedures including 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
Has Dr. Heilizer confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Heilizer. 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.