Physician Profile
Unclaimed ProfileAbout SARWARK
Based in Chicago, IL, John P Sarwark, M.D. is listed in the NPI registry under emergency medicine. Medicare claims data shows John provided 1,342 services to 1,292 patients.
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) 926-9512
- Email not available
Practice Locations
211 E ONTARIO ST SUITE 300
Chicago, IL 60611
Procedures Most Often Billed to Medicare
1,342 services · 1,292 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
485 |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
664 |
| Critical care, first 30-74 minutes | Office visit | 99291 |
104 |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
89 |
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 emergency medicines at this location 1
Same specialty, same street address — most likely the same department or group.
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 emergency medicines 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 2012 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Sarwark?
Dr. Sarwark is an emergency medicine in Chicago, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “EMERGENCY MEDICINE”.
NPI registry
What is Dr. Sarwark's address?
Dr. Sarwark is listed at 211 E ONTARIO ST SUITE 300, 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. Sarwark?
The number on file is (312) 926-9512. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Sarwark?
Dr. Sarwark's National Provider Identifier is 1629331145. 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. Sarwark train?
Dr. Sarwark attended Other, graduating in 2012. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Sarwark have?
Dr. Sarwark has 14 years experience. Calculated from a graduation year of 2012, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Sarwark perform?
According to Medicare billing data, Dr. Sarwark provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Sarwark's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Sarwark. 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.