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

Mary Marschner, MD

Individual provider Internal Medicine Physician · NPI 1801279476

Mary Marschner, MD practises Internal Medicine in Nashville, Tennessee. Graduated from University of South Alabama College of Medicine in 2015, 11 years ago. Practices with Vanderbilt University Medical Center, a 3,466-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Massachusetts and Tennessee.

Years since qualifying
11
Trained at
University of South Alabama College of Medicine
Licensed in
MA, TN
In the registry since
2015
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

3601 The Vanderbilt Clinic
Nashville, TN 37232-5502
Phone: (615) 322-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 330 Mount Auburn St, Cambridge, MA 02138-5502 — (617) 499-5571

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 68912 (TN)
General Acute Care Hospital Taxonomy 282N00000X · Licence 042103606 (MA)

Record details

NPI number1801279476
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorYes
NPI enumeratedJuly 1, 2015
Last updated in NPPESOctober 26, 2023
Certification dateOctober 26, 2023

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF SOUTH ALABAMA COLLEGE OF MEDICINE
Graduated 2015 (11 years in practice)
Group practice Vanderbilt University Medical Center — 3466 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 patients89
Services billed 259 a service is one billed item, such as a visit, a test or a procedure
Average patient age69

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 Vanderbilt University Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3466 clinicians in the practice; 12 are shown here.

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