Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Prof. John Ramsey Warfield, MD

Individual provider Diagnostic Radiology Physician · NPI 1225118151

Prof. John Ramsey Warfield, MD is a Diagnostic Radiology in Phoenix, Arizona. Graduated from University of Maryland School of Medicine in 1972, 54 years ago. Practices with Dhew Ind Hlth Sv Hlth Svs and Mntl Hlth Adm, a 223-clinician group and accepts Medicare assignment. Licensed in Pennsylvania.

Years since qualifying
54
Trained at
University of Maryland School of Medicine
Licensed in
PA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

4212 N 16th St
Phoenix, AZ 85016-5319
Phone: (602) 263-1200
Fax: (602) 200-5383
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence MD044853E (PA)

Record details

NPI number1225118151
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 16, 2006
Last updated in NPPESAugust 29, 2011
Mailing addressPo Box 31001-0698, Pasadena, CA 91110-0698

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF MARYLAND SCHOOL OF MEDICINE
Graduated 1972 (54 years in practice)
Group practice Dhew Ind Hlth Sv Hlth Svs And Mntl Hlth Adm — 223 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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