Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

John David Mayfield, MD

Individual provider Diagnostic Radiology Physician · NPI 1669030722

John David Mayfield, MD is a Diagnostic Radiology in Boston, Massachusetts. Graduated from University of Florida College of Medicine in 2019, 7 years ago. Practices with Massachusetts General Physicians Organization Inc, a 3,484-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Massachusetts, New Hampshire and South Carolina.

Years since qualifying
7
Trained at
University of Florida College of Medicine
Licensed in
MA, NH, SC
In the registry since
2019
Specialties on file
3
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

55 Fruit St
Boston, MA 02114-2621
Phone: (617) 726-8323
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1 Medical Center Dr, Lebanon, NH 03756-0001 — (603) 650-5000
  • 701 Grove Rd, Greenville, SC 29605-4210 — (864) 455-7882

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence LL82596 (SC)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 1017847 (MA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 33181 (NH)

Record details

NPI number1669030722
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 4, 2019
Last updated in NPPESJune 11, 2026
Certification dateJune 11, 2026
Mailing address701 Grove Rd, Greenville, SC 29605-4210

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolUNIVERSITY OF FLORIDA COLLEGE OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Massachusetts General Physicians Organization Inc — 3484 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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