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

Ralph Oiknine, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1255365581

Ralph Oiknine, MD is an Endocrinology in Chesterfield, Missouri. Qualified in 1999, 27 years ago. Practices with Diabetes and Endocrinology Specialists Inc, a 3-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
27
Licensed in
MO
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

222 S Woods Mill Rd
Chesterfield, MO 63017-3625
Phone: (314) 469-6224
Fax: (314) 469-0744
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 214732 (MO)

Record details

NPI number1255365581
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 11, 2006
Last updated in NPPESSeptember 30, 2011

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Medical schoolOTHER
Graduated 1999 (27 years in practice)
Group practice Diabetes And Endocrinology Specialists Inc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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