Physician Profile
Unclaimed ProfileAbout HARDEK
Listed in the NPI registry as a hospitalist, John J Hardek, M.D. practices in Winfield, IL. John graduated from New York Medical College in 1989. John is also listed as specializing in internal medicine. According to Medicare claims data, John cared for 398 Medicare patients across 630 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
- (630) 933-4700
- Email not available
Practice Locations
25 N WINFIELD RD SUITE 101
Winfield, IL 60190
Procedures Most Often Billed to Medicare
630 services · 398 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
395 |
| Hospital discharge day management, more than 30 minutes | Office visit | 99239 |
140 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
51 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
44 |
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 hospitalists at this location 4
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 hospitalists in Winfield 5
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at New York Medical College 8
Other providers in the same specialty who trained at the same institution.
Class of 1989 at New York Medical College 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Dr. Hardek's specialty?
Dr. Hardek is a hospitalist in Winfield, IL. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “HOSPITALIST”.
NPI registry
Where can I find Dr. Hardek?
Dr. Hardek is listed at 25 N WINFIELD RD SUITE 101, Winfield, IL 60190. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Hardek?
The number on file is (630) 933-4700. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Hardek's NPI number?
Dr. Hardek's National Provider Identifier is 1710945126. 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. Hardek's medical education?
Dr. Hardek attended New York Medical College, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Hardek been practicing?
Dr. Hardek has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Hardek known for?
According to Medicare billing data, Dr. Hardek 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
Has Dr. Hardek confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Hardek. 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.