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

Dr. Christopher Martin Blackwell, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1740740125

Dr. Christopher Martin Blackwell, MD practises Diagnostic Radiology in San Diego, California. Qualified in 2019, 7 years ago. Practices with John Muir Magnetic Imaging Center, a 55-clinician group and works from 6 locations. Licensed in California.

Years since qualifying
7
Licensed in
CA
In the registry since
2019
Specialties on file
2
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

Student / training record This NPI belongs to someone enrolled in a health care training programme. It carries no licence and no practice of its own, so no address or phone number is published for it.

San Diego, CA

No coordinates on file. Search this address in Google Maps

Additional practice locations (5)

  • 9300 Campus Point Dr, La Jolla, CA 92037-1300 — (800) 926-8273
  • 9400 Campus Point Dr, La Jolla, CA 92093-1336 — (800) 926-8273
  • 330 Lewis St, San Diego, CA 92103-2108 — (800) 926-8273
  • 6655 Alvarado Rd, San Diego, CA 92120-5208 — (800) 926-8273
  • 21 Dartmouth Rd, Mountain Lakes, NJ 07046-1336 — (352) 333-5173

Specialties & licences

Diagnostic Radiology Physician (primary) Taxonomy 2085R0202X · Licence A195432 (CA)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1740740125
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 22, 2019
Last updated in NPPESJune 4, 2024
Certification dateJune 4, 2024

Medicare enrollment

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

Medicare specialtyDIAGNOSTIC RADIOLOGY
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice John Muir Magnetic Imaging Center — 55 clinicians
Accepts Medicare assignment Not indicated
Practice locations17 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients261
Services billed 349 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Colleagues at John Muir Magnetic Imaging Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 55 clinicians in the practice; 12 are shown here.

Other providers in San Diego