Physician Profile
Unclaimed ProfileAbout EWERT
Greg Donald Ewert, M.D. is a healthcare provider in Chicago, IL specializing in internal medicine. Greg trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 1986. According to Medicare claims data, Greg cared for 441 Medicare patients across 510 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
- (312) 922-3815
- Email not available
Practice Locations
200 S MICHIGAN AVE SUTIE 805
Chicago, IL 60604
Procedures Most Often Billed to Medicare
510 services · 441 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
122 |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
100 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
57 |
| Influenza vaccine, inactivated | Treatment | 90653 |
18 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
76 |
| Automated urinalysis test | Lab test | 81003 |
62 |
| Administration of pneumococcal vaccine | Billing code | G0009 |
57 |
| Administration of influenza virus vaccine | Billing code | G0008 |
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 internal medicines at this location 8
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 — 32 related providers in 4 groups
Other internal medicines in Chicago 8
Same specialty, same city.
Trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 8
Other providers in the same specialty who trained at the same institution.
Class of 1986 at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in IL who bill this service to Medicare most often.
Common questions
What does Dr. Ewert specialize in?
Dr. Ewert is an internal medicine in Chicago, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “INTERNAL MEDICINE”.
NPI registry
Where is Dr. Ewert located?
Dr. Ewert is listed at 200 S MICHIGAN AVE SUTIE 805, Chicago, IL 60604. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Ewert's phone number?
The number on file is (312) 922-3815. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Ewert's NPI number?
Dr. Ewert's National Provider Identifier is 1376591974. 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. Ewert go to medical school?
Dr. Ewert attended University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Ewert been practicing?
Dr. Ewert has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Ewert do most often?
According to Medicare billing data, Dr. Ewert performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and pneumococcal conjugate vaccine, 20 valent , for intramuscular use, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Ewert confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Ewert. 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.