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

Michael R Nannenga, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1922104975

Michael R Nannenga, MD is an Endocrinology in Kingsport, Tennessee. Graduated from Indiana University School of Medicine in 2005, 21 years ago. Practices with Holston Medical Group PC, a 242-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Tennessee.

Years since qualifying
21
Trained at
Indiana University School of Medicine
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 →

Practice location Address checks out

105 W Stone Dr Ste 5D
Kingsport, TN 37660-3365
Phone: (423) 857-2790
Fax: (423) 857-2791
Show map & directions

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

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence MD46522 (TN)
Internal Medicine Physician Taxonomy 207R00000X · Licence MD46522 (TN)

Record details

NPI number1922104975
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 16, 2006
Last updated in NPPESJuly 18, 2011

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Holston Medical Group Pc — 242 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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