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Edit this profileWhere to find Ajay R. Chapa, MD
- Chicago location main office
676 N Saint Clair St Ste 800, Chicago, IL 60611 - Saint Louis location
510 S Kingshighway Blvd, Saint Louis, MO 63110
About Dr. Chapa
Ajay R. Chapa, MD is a healthcare provider in Chicago, IL specializing in diagnostic radiology. Ajay trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 2006. Medicare claims data shows Ajay provided 2,690 services to 1,965 patients. The services billed most often include blood creatinine level, insertion of needle into vein for collection of blood sample, and injection, dexamethasone sodium phosphate, 1 mg. This provider record is associated with NPI 1689896441.
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
- (312) 695-5103
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
676 N SAINT CLAIR ST STE 800
Chicago, IL 60611
510 S Kingshighway Blvd
Saint Louis, MO 63110
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
2,690 services · 1,965 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
322 | More than most peers in Diagnostic Radiology |
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
45 | As often as other peers in Diagnostic Radiology |
| X-ray of abdomen, 1 view | Imaging | 74018 |
145 | More often than most peers in Diagnostic Radiology |
| X-ray of hip, 2-3 views | Imaging | 73502 |
138 | More than most peers in Diagnostic Radiology |
| X-ray of foot, minimum of 3 views | Imaging | 73630 |
109 | More than most peers in Diagnostic Radiology |
| Mri scan of leg joint without contrast | Imaging | 73721 |
98 | As often as other peers in Diagnostic Radiology |
| X-ray of knee, 1-2 views | Imaging | 73560 |
95 | More often than most peers in Diagnostic Radiology |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
92 | More than most peers in Diagnostic Radiology |
| X-ray of knee, 3 views | Imaging | 73562 |
76 | More often than most peers in Diagnostic Radiology |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
73 | More than most 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 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 radiologists in Chicago 8
Same specialty, same city.
More connections — 19 related providers in 3 groups
Trained at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 6
Other providers in the same specialty who trained at the same institution.
Class of 2006 at University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb) 7
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 6
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Chapa?
Dr. Chapa is a radiologist in Chicago, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
What is Dr. Chapa's address?
Dr. Chapa is listed at 676 N Saint Clair St Ste 800, 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. Chapa?
The number on file is (312) 695-5103. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Chapa?
Dr. Chapa's National Provider Identifier is 1689896441. 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. Chapa train?
Dr. Chapa attended University of Illinois College of Med (Chi/Peor/Rock/Chm-Urb), graduating in 2006. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Chapa have?
Dr. Chapa has 20 years experience. Calculated from a graduation year of 2006, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Chapa perform?
According to Medicare billing data, Dr. Chapa performs procedures including insertion of needle into vein for collection of blood sample and aspiration and/or injection of fluid from large joint; reads or performs imaging such as x-ray of abdomen, 1 view and x-ray of hip, 2-3 views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Chapa's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chapa. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.