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

Dr. Rebecca Roelofs Hartog, MD

Individual provider Internal Medicine Physician · NPI 1417375791

Dr. Rebecca Roelofs Hartog, MD practises Pediatric Medicine in Saint Louis, Missouri. Graduated from University of Pittsburgh School of Medicine in 2014, 12 years ago. Practices with Washington University, a 2,986-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
12
Trained at
University of Pittsburgh School of Medicine
Licensed in
MO
In the registry since
2014
Specialties on file
5
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

1 Childrens Pl Div Ped Cardiology
Saint Louis, MO 63110-1002
Phone: (314) 454-6095
Fax: (314) 884-6008
Show map & directions

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

Specialties & licences

Pediatric Cardiology Physician (primary) Taxonomy 2080P0202X · Licence 2021018955 (MO)
Internal Medicine Physician Taxonomy 207R00000X · Licence 2021018955 (MO)
Adult Congenital Heart Disease Physician Taxonomy 207RA0002X · Licence 2021018955 (MO)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence 2021018955 (MO)
Pediatrics Physician Taxonomy 208000000X · Licence 2021018955 (MO)

Record details

NPI number1417375791
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 3, 2014
Last updated in NPPESFebruary 9, 2026
Certification dateSeptember 17, 2021

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Also practisesCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolUNIVERSITY OF PITTSBURGH SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Washington University — 2986 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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 patients17
Services billed 60 a service is one billed item, such as a visit, a test or a procedure
Average patient age38

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.

Colleagues at Washington University

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2986 clinicians in the practice; 12 are shown here.

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