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

Richard J Kozeny Jr., MD

Individual provider Internal Medicine Physician · NPI 1255319810

Richard J Kozeny Jr., MD is an Internal Medicine in Chesterfield, Missouri. Graduated from Medical College of Wisconsin in 1995, 31 years ago. Practices with Chesterfield Internal Medicine and Rheumatology, LLC, a 7-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Iowa and Missouri.

Years since qualifying
31
Trained at
Medical College of Wisconsin
Licensed in
IA, MO
In the registry since
2006
Specialties on file
2
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

226 S Woods Mill Rd Ste 43 W
Chesterfield, MO 63017-3662
Phone: (314) 205-6444
Fax: (314) 205-6433
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 2012037325 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 34243 (IA)

Record details

NPI number1255319810
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 4, 2006
Last updated in NPPESJune 5, 2013

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolMEDICAL COLLEGE OF WISCONSIN
Graduated 1995 (31 years in practice)
Group practice Chesterfield Internal Medicine And Rheumatology, Llc — 7 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

Other providers in Chesterfield