Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Kelsey Seger, DO

Individual provider Internal Medicine Physician · NPI 1356861264

Kelsey Seger, DO practises Internal Medicine in St. Louis, Missouri. Graduated from University of Missouri, Kansas City, School of Medicine in 2017, 9 years ago. Practices with Mercy Clinic East Communities, a 573-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Missouri.

Years since qualifying
9
Trained at
University of Missouri, Kansas City, School of Medicine
Licensed in
MO
In the registry since
2017
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

615 S New Ballas
St. Louis, MO 63131
Phone: (314) 509-5305
Fax: (314) 251-4454
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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 2017020336 (MO)

Record details

NPI number1356861264
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorYes
NPI enumeratedJune 21, 2017
Last updated in NPPESJuly 21, 2022

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MISSOURI, KANSAS CITY, SCHOOL OF MEDICINE
Graduated 2017 (9 years in practice)
Group practice Mercy Clinic East Communities — 573 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients189
Services billed 663 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Mercy Hospital Jefferson Hospital · Crystal City, MO
  • Mercy Hospital South Hospital · Saint Louis, MO
  • Mercy Hospital St Louis Hospital · Saint Louis, MO · listed as Mercy Hospitals East Communities Mercy Hospital St Louis
  • St Lukes Hospital Hospital · Chesterfield, MO
  • Mercy Hospital Washington Hospital · Washington, MO
  • Mercy Home Health Home health agency · Saint Louis, MO
  • Mercy Home Health Home health agency · Saint Louis, MO
  • Mercy Hospice Hospice · Saint Louis, MO

Also affiliated with 1 inpatient rehabilitation facility, which CMS identifies by certification number only.

Colleagues at Mercy Clinic East Communities

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 573 clinicians in the practice; 12 are shown here.

Other providers in St. Louis