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

Dr. Timothy Graham Johnson, MD

Individual provider Surgery Physician · NPI 1538488648

Dr. Timothy Graham Johnson, MD is a Pulmonary Disease in Nashville, Tennessee. Qualified in 2010, 16 years ago. Practices with Williamson Medical Group, LLC, a 68-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
16
Licensed in
TN
In the registry since
2010
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

3601 The Vanderbilt Clinic
Nashville, TN 37232-0001
Phone: (615) 322-3000
Fax: (615) 936-0605
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 53854 (TN)

Record details

NPI number1538488648
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 28, 2010
Last updated in NPPESJune 10, 2016

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Medical schoolOTHER
Graduated 2010 (16 years in practice)
Group practice Williamson Medical Group, Llc — 68 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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