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

Dr. Christopher Mark John, DO

Individual provider Diagnostic Radiology Physician · NPI 1669679569

Dr. Christopher Mark John, DO is a Diagnostic Radiology in Orlando, Florida. Graduated from Midwestern University, Chicago College of Osteopathic Med in 2006, 20 years ago. Practices with Appalachian Regional Healthcare Inc, a 293-clinician group. Licensed in California, Florida and Texas.

Years since qualifying
20
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
CA, FL, TX
In the registry since
2007
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

See every abbreviation used in this directory →

Practice location Address checks out

52 Underwood St
Orlando, FL 32806-1110
Phone: (407) 481-7174
Fax: (321) 843-6080
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence OS15940 (FL)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence 20A20771 (CA)
Diagnostic Radiology Physician Taxonomy 2085R0202X · Licence P0069 (TX)

Record details

NPI number1669679569
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJuly 3, 2007
Last updated in NPPESSeptember 25, 2025
Certification dateSeptember 25, 2025

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Also practisesINTERVENTIONAL RADIOLOGY
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 2006 (20 years in practice)
Group practice Appalachian Regional Healthcare Inc — 293 clinicians
Accepts Medicare assignment Not indicated
Practice locations20 on file with Medicare

Other providers in Orlando