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

Mr. Ralph J Duda Jr., MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1356436406

Mr. Ralph J Duda Jr., MD is an Endocrinology, Diabetes & Metabolism Physician in Springfield, Missouri. Licensed in Missouri. Registered with an NPI since 2006.

Licensed in
MO
In the registry since
2006
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

909 E Republic Rd Ste D200
Springfield, MO 65807-6012
Phone: (417) 883-7889
Fax: (417) 890-6151
Show map & directions

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

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence R7G82 (MO)

Record details

NPI number1356436406
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 4, 2006
Last updated in NPPESApril 13, 2022
Certification dateApril 13, 2022

Other providers in Springfield