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Edit this profileAt a glance
- 430 Pennsylvania Ave Ste 110, Glen Ellyn, IL 60137
About Dr. Felker
John G. Felker, MD practices diagnostic radiology in Glen Ellyn, IL. John is a 1990 graduate of University of Kentucky College of Medicine. According to Medicare claims data, John cared for 3,444 Medicare patients across 21,265 services. The services billed most often include low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml, screening mammography, and screening 3d breast mammography. The provider's National Provider Identifier (NPI) is 1679514996.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (630) 946-2020
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
430 PENNSYLVANIA AVE STE 110
Glen Ellyn, IL 60137
Conditions Evaluated or Diagnosed
Within Diagnostic Radiology 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
Abdomen & Pelvis
- Abdominal Pain
- Appendicitis
- Diverticulitis
- Enlarged prostate
- Gallstones
- Kidney stones
- Liver Lesions
- Ovarian cysts
Bone & Joint
- Ankle Sprain or Fracture
- Bone fractures
- Heel pain
- Hip osteoarthritis
- Osteoporosis
- Rotator cuff tear
- Torn meniscus
Brain & Head
- Brain aneurysm
- Brain tumor
- Concussion in Children
- Migraines
- Sinus infection
- Transient ischemic attack
Brain & nerves
Breast
Chest & Heart
General
Heart & blood vessels
Joint & bone
Liver & digestion
Lungs & breathing
Men's health
Neck & Thyroid
Nerve pain
Pelvic health
Spine
Spine & back
Vascular
Women's health
Procedures & services
Breast Imaging
Abdominal imaging
Biopsies
Bone Density
CT Scan
Digestive & liver
Fluoroscopy
General imaging
Heart & blood vessels
Joint & bone
MRI
Nuclear Medicine
Pelvic imaging
Screening & Prevention
Spine & back
Ultrasound
- Abdominal Ultrasound
- Carotid Ultrasound
- Leg Vein Ultrasound
- Pelvic ultrasound
- Scrotal Ultrasound
- Thyroid ultrasound
- Ultrasound
Urinary & kidney
Women's health
X-Ray
Procedures Most Often Billed to Medicare
21,265 services · 3,444 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Screening mammography | Imaging | 77067 |
665 | More often than most peers in Diagnostic Radiology |
| Screening 3d breast mammography | Imaging | 77063 |
664 | More often than most peers in Diagnostic Radiology |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
509 | More often than most peers in Diagnostic Radiology |
| Ct scan of chest without contrast | Imaging | 71250 |
217 | More often than most peers in Diagnostic Radiology |
| X-ray of chest, 2 views | Imaging | 71046 |
159 | As often as other peers in Diagnostic Radiology |
| Ct scan of abdomen and pelvis with contrast | Imaging | 74177 |
153 | As often as other peers in Diagnostic Radiology |
| Diagnostic mammography of 1 breast | Imaging | 77065 |
96 | More often than most peers in Diagnostic Radiology |
| Ct scan of chest with contrast | Imaging | 71260 |
94 | More often than most peers in Diagnostic Radiology |
| Low dose ct scan of chest for lung cancer screening | Imaging | 71271 |
86 | More often than most peers in Diagnostic Radiology |
| Limited ultrasound scan of 1 breast | Imaging | 76642 |
84 | As often as other peers in Diagnostic Radiology |
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 radiologists at this location 5
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 radiologists in Glen Ellyn 3
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Kentucky College of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at University of Kentucky College of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Screening mammography 8
Providers in IL who bill this service to Medicare most often.
Common questions
What is Dr. Felker's specialty?
Dr. Felker is a radiologist in Glen Ellyn, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
Where can I find Dr. Felker?
Dr. Felker is listed at 430 Pennsylvania Ave Ste 110, Glen Ellyn, IL 60137. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Felker?
The number on file is (630) 946-2020. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Felker's NPI number?
Dr. Felker's National Provider Identifier is 1679514996. 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. Felker's medical education?
Dr. Felker attended University of Kentucky College of Medicine, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Felker been practicing?
Dr. Felker has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Felker known for?
According to Medicare billing data, Dr. Felker performs imaging including screening mammography and screening 3d breast mammography. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Felker confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Felker. If this is you, claiming it is free.
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