Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
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Dr. Frederick O'Neal Gregg, DO

Individual provider Orthopaedic Surgery Physician · NPI 1952523607

Dr. Frederick O'Neal Gregg, DO practises Orthopedic Surgery in Hattiesburg, Mississippi. Qualified in 2005, 21 years ago. Practices with Southern Bone and Joint Specialists, PA, a 53-clinician group and accepts Medicare assignment. Licensed in Georgia and Mississippi.

Years since qualifying
21
Licensed in
GA, MS
In the registry since
2007
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

3688 Veterans Memorial Dr Ste 200
Hattiesburg, MS 39401 Not confirmed with CMS for 16 years — call before visiting
Phone: (601) 554-7400
Fax: (601) 554-7488
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Orthopaedic Surgery Physician (primary) Taxonomy 207X00000X · Licence 20954 (MS)
Orthopaedic Surgery Physician Taxonomy 207X00000X · Licence 001226 (GA)

Record details

NPI number1952523607
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 3, 2007
Last updated in NPPESJuly 27, 2010

Medicare enrollment

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

Medicare specialtyORTHOPEDIC SURGERY
Medical schoolOTHER
Graduated 2005 (21 years in practice)
Group practice Southern Bone And Joint Specialists, Pa — 53 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Lower limb (leg) arthroscopy (minimally invasive joint repair) 27 times · 96th percentile
Knee replacement 75 times · 88th percentile
Hip replacement 18 times · 63rd percentile
Upper limb (arm) arthroscopy (minimally invasive joint repair) 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients1,177
Services billed 17,272 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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 Southern Bone and Joint Specialists, PA

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 53 clinicians in the practice; 12 are shown here.

Other providers in Hattiesburg