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

William Clay Callicott VI, DO

Individual provider Internal Medicine Physician · NPI 1275162380

William Clay Callicott VI, DO is an Internal Medicine in Knoxville, Tennessee. Qualified in 2020, 6 years ago. Practices with Southeastern Physician Services PC, a 598-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
6
Licensed in
TN
In the registry since
2020
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

9352 Park West Blvd
Knoxville, TN 37923-4325
Phone: (865) 373-1000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 5317 (TN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 5317 (TN)
Critical Care Medicine (Internal Medicine) Physician Taxonomy 207RC0200X · Licence 5317 (TN)

Record details

NPI number1275162380
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 2, 2020
Last updated in NPPESJune 25, 2026
Certification dateJune 25, 2026

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2020 (6 years in practice)
Group practice Southeastern Physician Services Pc — 598 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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