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

Dr. William D Drinnon, MD

Individual provider Internal Medicine Physician · NPI 1831174168

Dr. William D Drinnon, MD practises Internal Medicine in Chattanooga, Tennessee. Graduated from University of Tennessee, Hsc, College of Medicine in 1989, 37 years ago. Practices with Beacon Health Alliance PC, an 11-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
37
Trained at
University of Tennessee, Hsc, College of Medicine
Licensed in
TN
In the registry since
2005
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

3370 Jenkins Rd
Chattanooga, TN 37421 Not confirmed with CMS for 17 years — call before visiting
Phone: (423) 648-8005
Fax: (423) 648-8006
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 22164 (TN)

Record details

NPI number1831174168
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedDecember 9, 2005
Last updated in NPPESJanuary 15, 2009

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TENNESSEE, HSC, COLLEGE OF MEDICINE
Graduated 1989 (37 years in practice)
Group practice Beacon Health Alliance Pc — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients354
Services billed 5,948 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 Beacon Health Alliance PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 11 clinicians in the practice; 7 are shown here.

Other providers in Chattanooga