Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

John Allan Barwise, MD

Individual provider Anesthesiology Physician · NPI 1427132547

John Allan Barwise, MD practises Anesthesiology in Nashville, Tennessee. Qualified in 1983, 43 years ago. Practices with Vanderbilt University Medical Center, a 3,466-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
43
Licensed in
TN
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3601 Tvc
Nashville, TN 37232-0001
Phone: (615) 322-3000
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Critical Care Medicine (Anesthesiology) Physician (primary) Taxonomy 207LC0200X · Licence MD0000030740 (TN)
Anesthesiology Physician Taxonomy 207L00000X · Licence MD30740 (TN)

Record details

NPI number1427132547
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 25, 2006
Last updated in NPPESMarch 22, 2022
Certification dateMarch 22, 2022

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Group practice Vanderbilt University Medical Center — 3466 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients71
Services billed 84 a service is one billed item, such as a visit, a test or a procedure
Average patient age68

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 Vanderbilt University Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3466 clinicians in the practice; 12 are shown here.

Other providers in Nashville