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

Stefan J Grenvik, MD

Individual provider Anesthesiology Physician · NPI 1770513913

Stefan J Grenvik, MD practises Anesthesiology in Bristol, Tennessee. Graduated from University of Pittsburgh School of Medicine in 1989, 37 years ago. Practices with Lafayette Health Ventures Inc, a 299-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
37
Trained at
University of Pittsburgh School of Medicine
Licensed in
TN
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

1 Medical Park Blvd
Bristol, TN 37620-7430
Phone: (423) 968-4540
Fax: (423) 968-5697
Show map & directions

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

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence MD024364 (TN)

Record details

NPI number1770513913
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 4, 2006
Last updated in NPPESMarch 7, 2023

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Lafayette Health Ventures Inc — 299 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 patients223
Services billed 288 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 Lafayette Health Ventures Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 299 clinicians in the practice; 12 are shown here.

Other providers in Bristol