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

John S. Smiarowski, MD

Individual provider Gastroenterology Physician · NPI 1568462851

John S. Smiarowski, MD is a Gastroenterology in Monroe, Louisiana. Graduated from Yale University School of Medicine in 1971, 55 years ago. Practices with Gastroenterology Clinic, a Professional Medical Corporation, a 14-clinician group and accepts Medicare assignment. Licensed in Louisiana.

Years since qualifying
55
Trained at
Yale University School of Medicine
Licensed in
LA
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 →

Practice location Address checks out

611 Grammont St
Monroe, LA 71201-7516
Phone: (318) 325-2634
Fax: (318) 812-1205
Show map & directions

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

Specialties & licences

Gastroenterology Physician (primary) Taxonomy 207RG0100X · Licence 05444R (LA)

Record details

NPI number1568462851
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 28, 2005
Last updated in NPPESJuly 13, 2026
Mailing address611 Grammont St, Monroe, LA 71201-7516

Medicare enrollment

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

Medicare specialtyGASTROENTEROLOGY
Medical schoolYALE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1971 (55 years in practice)
Group practice Gastroenterology Clinic, A Professional Medical Corporation — 14 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Monroe