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

Dr. Katharine T. Gregg, MD

Individual provider Geriatric Medicine (Internal Medicine) Physician · NPI 1194758854

Dr. Katharine T. Gregg, MD practises Geriatric Medicine in Jackson, Mississippi. Graduated from University of Mississippi School of Medicine in 1994, 32 years ago. Practices with State of Mississippi - University of Mississippi Medical Center, a 952-clinician group and accepts Medicare assignment. Licensed in Mississippi.

Years since qualifying
32
Trained at
University of Mississippi School of Medicine
Licensed in
MS
In the registry since
2006
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

2500 N State St Dept OF Medicine/division OF Geriatrics
Jackson, MS 39216-4500 Not confirmed with CMS for 12 years — call before visiting
Phone: (601) 984-5610
Fax: (601) 984-6439
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Geriatric Medicine (Internal Medicine) Physician (primary) Taxonomy 207RG0300X · Licence 14404 (MS)

Record details

NPI number1194758854
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 8, 2006
Last updated in NPPESApril 9, 2014

Medicare enrollment

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

Medicare specialtyGERIATRIC MEDICINE
Also practisesINTERNAL MEDICINE
Medical schoolUNIVERSITY OF MISSISSIPPI SCHOOL OF MEDICINE
Graduated 1994 (32 years in practice)
Group practice State Of Mississippi - University Of Mississippi Medical Center — 952 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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 patients321
Services billed 1,110 a service is one billed item, such as a visit, a test or a procedure
Average patient age81

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.

Colleagues at State of Mississippi - University of Mississippi Medical Center

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 952 clinicians in the practice; 12 are shown here.

Other providers in Jackson