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Edit this profileAt a glance
- 4212 N 16Th St, Phoenix, AZ 85016
About Dr. Warfield
John R. Warfield, MD. is a healthcare provider in Phoenix, AZ specializing in diagnostic radiology. John trained at University of Maryland School of Medicine, graduating in 1972. Medicare claims data shows John provided 725 services to 666 patients. The services billed most often include screening 3d breast mammography, screening mammography, and x-ray of chest, 2 views. This provider record is associated with NPI 1225118151.
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
- (602) 263-1200
- Email not available
Practice Locations
4212 N 16TH ST
Phoenix, AZ 85016
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
Abdominal imaging
Biopsies
Bone Density
Breast Imaging
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
725 services · 666 patients · 18 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Screening 3d breast mammography | Imaging | 77063 |
127 | Less often than most peers in Diagnostic Radiology |
| Screening mammography | Imaging | 77067 |
126 | Less often than most peers in Diagnostic Radiology |
| X-ray of chest, 2 views | Imaging | 71046 |
69 | Less often than most peers in Diagnostic Radiology |
| X-ray of foot, minimum of 3 views | Imaging | 73630 |
55 | As often as other peers in Diagnostic Radiology |
| X-ray of knee, 1-2 views | Imaging | 73560 |
38 | As often as other peers in Diagnostic Radiology |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
37 | As often as other peers in Diagnostic Radiology |
| Complete ultrasound scan of 1 breast | Imaging | 76641 |
33 | Less often than most peers in Diagnostic Radiology |
| X-ray of knee, 3 views | Imaging | 73562 |
33 | Less often than most peers in Diagnostic Radiology |
| X-ray of lower and sacral spine, 2-3 views | Imaging | 72100 |
30 | Less often than most peers in Diagnostic Radiology |
| Diagnostic mammography of 1 breast | Imaging | 77065 |
26 | Less often 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.
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 Phoenix 8
Same specialty, same city.
Trained at University of Maryland School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1972 at University of Maryland School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Screening 3d breast mammography 8
Providers in AZ who bill this service to Medicare most often.
Common questions
What is Dr. Warfield's specialty?
Dr. Warfield is a radiologist in Phoenix, AZ. 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. Warfield?
Dr. Warfield is listed at 4212 N 16Th St, Phoenix, AZ 85016. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Warfield?
The number on file is (602) 263-1200. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Warfield?
Dr. Warfield's National Provider Identifier is 1225118151. 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. Warfield's medical education?
Dr. Warfield attended University of Maryland School of Medicine, graduating in 1972. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Warfield have?
Dr. Warfield has 54 years experience. Calculated from a graduation year of 1972, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Warfield known for?
According to Medicare billing data, Dr. Warfield performs imaging including screening 3d breast mammography and screening mammography. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Warfield's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Warfield. If this is you, claiming it is free.
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