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

Thishara Merza, MD

Individual provider Hospitalist Physician · NPI 1073773347

Thishara Merza, MD is an Internal Medicine in Saint Louis, Missouri. Qualified in 2005, 21 years ago. Practices with Physician Groups Lc, a 524-clinician group and accepts Medicare assignment. Licensed in Maine and Missouri.

Years since qualifying
21
Licensed in
ME, MO
In the registry since
2008
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

3015 N Ballas Rd
Saint Louis, MO 63131-2329
Phone: (314) 996-5772
Fax: (314) 996-7691
Show map & directions

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

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 2013032872 (MO)
Hospitalist Physician Taxonomy 208M00000X · Licence 17949 (ME)

Record details

NPI number1073773347
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 11, 2008
Last updated in NPPESFebruary 11, 2021
Certification dateFebruary 11, 2021

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Physician Groups Lc — 524 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Saint Louis