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

Nathan Iyer Krishnan, MD

Individual provider Internal Medicine Physician · NPI 1770937542

Nathan Iyer Krishnan, MD is a Hospitalist in Nashville, Tennessee. Qualified in 2016, 10 years ago. Practices with Vanderbilt University Medical Center, a 3,466-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Tennessee.

Years since qualifying
10
Licensed in
TN
In the registry since
2016
Specialties on file
3
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
Phone: (615) 322-3000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (2)

  • 1161 21st Ave S, Nashville, TN 37232-0011 — (615) 875-5568
  • 1161 21st Ave S, Nashville, TN 37232-0011 — (615) 875-5568

Specialties & licences

Hospitalist Physician (primary) Taxonomy 208M00000X · Licence 58678 (TN)
Internal Medicine Physician Taxonomy 207R00000X · Licence 58678 (TN)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1770937542
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 19, 2016
Last updated in NPPESMarch 25, 2022
Certification dateMarch 25, 2022

Medicare enrollment

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

Medicare specialtyHOSPITALIST
Medical schoolOTHER
Graduated 2016 (10 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 patients149
Services billed 196 a service is one billed item, such as a visit, a test or a procedure
Average patient age71

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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