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

John Calvin Perkins Jr., MD

Individual provider Emergency Medicine Physician · NPI 1841357860

John Calvin Perkins Jr., MD practises Emergency Medicine in Roanoke, Virginia. Graduated from Drexel University College of Medicine in 2002, 24 years ago. Practices with Carilion Medical Center, a 951-clinician group and accepts Medicare assignment. Licensed in Maryland and Virginia.

Years since qualifying
24
Trained at
Drexel University College of Medicine
Licensed in
MD, VA
In the registry since
2007
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

1906 Belleview Ave SE
Roanoke, VA 24014-1838
Phone: (540) 981-7000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 0101252196 (VA)
Emergency Medicine Physician Taxonomy 207P00000X · Licence D65458 (MD)

Record details

NPI number1841357860
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 2, 2007
Last updated in NPPESJuly 8, 2021
Certification dateJuly 8, 2021

Medicare enrollment

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

Medicare specialtyEMERGENCY MEDICINE
Medical schoolDREXEL UNIVERSITY COLLEGE OF MEDICINE
Graduated 2002 (24 years in practice)
Group practice Carilion Medical Center — 951 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients180
Services billed 196 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Colleagues at Carilion Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 951 clinicians in the practice; 12 are shown here.

Other providers in Roanoke