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

Ryan S Gilliand, PA-C

Individual provider Physician Assistant · NPI 1548348980

Ryan S Gilliand, PA-C is a Physician Assistant in Chattanooga, Tennessee. Qualified in 2001, 25 years ago. Practices with Chattanooga Diagnostic Associates LLC, a 28-clinician group and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
25
Licensed in
TN
In the registry since
2006
What do these letters mean?
PA-C — Physician Assistant, Certified
A physician assistant who holds current national certification.

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Practice location Address checks out

1510 Gunbarrel Rd Ste 120
Chattanooga, TN 37421-7252
Phone: (423) 697-8585
Fax: (423) 697-8586
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 1848 (TN)

Record details

NPI number1548348980
Entity typeIndividual (Type 1)
GenderMale
Credentials PA-C
Sole proprietorNo
NPI enumeratedNovember 2, 2006
Last updated in NPPESMay 14, 2026
Certification dateMay 14, 2026
Mailing address1510 Gunbarrel Rd Ste 120, Chattanooga, TN 37421-7252

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice Chattanooga Diagnostic Associates Llc — 28 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 on file with Medicare

Other providers in Chattanooga