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

Dr. William Gregory Mullinax, MD

Individual provider Hospice and Palliative Medicine (Family Medicine) Physician · NPI 1972551364

Dr. William Gregory Mullinax, MD is a Hospice/Palliative Care in Collierville, Tennessee. Graduated from University of Tennessee, Hsc, College of Medicine in 1999, 27 years ago. Practices with Baptist Memorial Medical Group, Inc, a 571-clinician group, works from 4 locations and accepts Medicare assignment. Licensed in Mississippi and Tennessee.

Years since qualifying
27
Trained at
University of Tennessee, Hsc, College of Medicine
Licensed in
MS, TN
In the registry since
2006
Specialties on file
2
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

1500 W Poplar Ave
Collierville, TN 38017-0601
Phone: (901) 226-2800
Fax: (901) 226-2802
Show map & directions

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

Additional practice locations (3)

  • 7601 Southcrest Pkwy, Southaven, MS 38671-4739 — (901) 226-2800
  • 6225 Humphreys Blvd, Memphis, TN 38120-2373 — (901) 226-2800
  • 6027 Walnut Grove Rd, Memphis, TN 38120-2145 — (901) 226-2800

Specialties & licences

Hospice and Palliative Medicine (Family Medicine) Physician (primary) Taxonomy 207QH0002X · Licence 36834 (TN)
Hospice and Palliative Medicine (Family Medicine) Physician Taxonomy 207QH0002X · Licence 31104 (MS)

Record details

NPI number1972551364
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 5, 2006
Last updated in NPPESFebruary 9, 2023
Certification dateFebruary 9, 2023

Medicare enrollment

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

Medicare specialtyHOSPICE/PALLIATIVE CARE
Medical schoolUNIVERSITY OF TENNESSEE, HSC, COLLEGE OF MEDICINE
Graduated 1999 (27 years in practice)
Group practice Baptist Memorial Medical Group, Inc. — 571 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount