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

Howard R Mertz, MD

Individual provider Gastroenterology Physician · NPI 1649278474

Howard R Mertz, MD is a Gastroenterology in Nashville, Tennessee. Graduated from Baylor College of Medicine in 1986, 40 years ago. Practices with Advanced Diagnostic Imaging PC, a 529-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Tennessee.

Years since qualifying
40
Trained at
Baylor 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.

See every abbreviation used in this directory →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

4230 Harding Rd Ste 309 Medical Plaza West
Nashville, TN 37205-2013
Phone: (615) 383-0165
Fax: (615) 292-4657
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence MD0000025618 (TN)

Record details

NPI number1649278474
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 14, 2005
Last updated in NPPESDecember 16, 2015

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolBAYLOR COLLEGE OF MEDICINE
Graduated 1986 (40 years in practice)
Group practice Advanced Diagnostic Imaging Pc — 529 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Nashville