DR. FREDERICK O'NEAL GREGG D.O.
Prescription History 1952523607
Orthopaedic Surgery in Hattiesburg, MS

Active since May 03, 2007PECOS EnrolledAccepts Medicare Assignment
99.75/100
CMS Quality Rating
3688 VETERANS MEMORIAL DR, SUITE 200, HATTIESBURG, MS 39401(601) 554-7400(601) 554-7488 Get Directions

NPPES record last updated: July 27, 2010. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for DR. FREDERICK O'NEAL GREGG D.O., an active Orthopaedic Surgery specialist practicing in Hattiesburg, MS. Our medical registry currently tracks 14 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 1,276 documented patient claims. Among these therapy options, the most frequently utilized medication is Meloxicam, which accounts for 496 claims alone. Use the table below to sort by claims, cost, or utilization compared with the state average; select any medication for its full profile.

14
Medications
1,276
Total Claims
1,412
30-Day Fills
Meloxicam
Most Prescribed · 496 claims
View details
14 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by DR. FREDERICK O'NEAL GREGG D.O. in 2023, with prescription volumes, average cost per fill, and MS state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other MS PrescribersVs. MS Avg

About Meloxicam: Meloxicam is used to help relieve moderate to severe pain. Show more ▾

Meloxicam is known as a nonsteroidal anti-inflammatory drug (NSAID). It works by blocking your body's production of certain natural substances that cause inflammation. This effect helps to decrease swelling or pain. A benzothiazine and thiazole derivative that acts as a NSAID and cyclooxygenase-2 (COX-2) inhibitor. It is used in the treatment of RHEUMATOID ARTHRITIS; OSTEOARTHRITIS; and ANKYLOSING SPONDYLITIS.

In 2023, this provider wrote 496 Medicare prescriptions for Meloxicam, about 6.4 times the volume of the typical Mississippi prescriber of this medication (78). Medicare paid an average of $4.67 per fill, versus $6.19 statewide.

How often this provider prescribes it

This provider
496
MS average
78.0

This provider prescribes this medication more often than the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$4.67
MS average
$6.19

This provider's average cost per fill is below the MS average for this medication.

605.3
30-Day Fills
standardized to 30-day supplies
17,512
Days of Medication
total across all patients in 2023

About Tramadol Hcl: See also Warning section. Show more ▾

This medication is used to help relieve moderate to moderately severe pain. Tramadol belongs to a class of drugs known as opioid analgesics. It works in the brain to change how your body feels and responds to pain. A narcotic analgesic proposed for severe pain. It may be habituating.

In 2023, this provider wrote 265 Medicare prescriptions for Tramadol Hcl, about 4.3 times the volume of the typical Mississippi prescriber of this medication (61). Medicare paid an average of $3.92 per fill, versus $6.97 statewide.

How often this provider prescribes it

This provider
265
MS average
61.0

This provider prescribes this medication more often than the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$3.92
MS average
$6.97

This provider's average cost per fill is below the MS average for this medication.

265
30-Day Fills
standardized to 30-day supplies
2,286
Days of Medication
total across all patients in 2023

About Oxycodone Hcl: This medication is used to help relieve moderate to severe pain. Show more ▾

Oxycodone belongs to a class of drugs known as opioid analgesics. It works in the brain to change how your body feels and responds to pain. A semisynthetic derivative of CODEINE.

In 2023, this provider wrote 85 Medicare prescriptions for Oxycodone Hcl, about the same volume as the typical Mississippi prescriber of this medication (81). Medicare paid an average of $4.17 per fill, versus $23.84 statewide.

How often this provider prescribes it

This provider
85
MS average
81.0

This provider's prescribing volume for this medication is in line with the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$4.17
MS average
$23.84

This provider's average cost per fill is below the MS average for this medication.

85
30-Day Fills
standardized to 30-day supplies
426
Days of Medication
total across all patients in 2023

About Gabapentin: Gabapentin is used with other medications to prevent and control seizures. Show more ▾

It is also used to relieve nerve pain following shingles (a painful rash due to herpes zoster infection) in adults. Gabapentin is known as an anticonvulsant or antiepileptic drug. A cyclohexane-gamma-aminobutyric acid derivative that is used for the treatment of PARTIAL SEIZURES; NEURALGIA; and RESTLESS LEGS SYNDROME.

In 2023, this provider wrote 78 Medicare prescriptions for Gabapentin, about half the volume of the typical Mississippi prescriber of this medication (134). Medicare paid an average of $8.70 per fill, versus $19.33 statewide.

How often this provider prescribes it

This provider
78
MS average
134.0

This provider prescribes this medication less often than the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$8.70
MS average
$19.33

This provider's average cost per fill is below the MS average for this medication.

91.5
30-Day Fills
standardized to 30-day supplies
2,745
Days of Medication
total across all patients in 2023

About Famotidine: Famotidine is used to treat ulcers of the stomach and intestines and to prevent intestinal ulcers from coming back after they have healed. Show more ▾

This medication is also used to treat certain stomach and throat (esophagus) problems (such as erosive esophagitis, gastroesophageal reflux disease-GERD, Zollinger-Ellison syndrome). It works by decreasing the amount of acid your stomach makes. It relieves symptoms such as cough that doesn't go away, stomach pain, heartburn, and difficulty swallowing. Famotidine belongs to a class of drugs known as H2 blockers. This medication is also available without a prescription. It is used to prevent and treat heartburn and other symptoms caused by too much acid in the stomach (acid indigestion). If you are taking this medication for self-treatment, it is important to read the manufacturer's package instructions carefully so you know when to consult your doctor or pharmacist. A competitive histamine H2-receptor antagonist. Its main pharmacodynamic effect is the inhibition of gastric secretion.

In 2023, this provider wrote 69 Medicare prescriptions for Famotidine, about 4.9 times the volume of the typical Mississippi prescriber of this medication (14). Medicare paid an average of $0.70 per fill, versus $24.66 statewide.

How often this provider prescribes it

This provider
69
MS average
14.0

This provider prescribes this medication more often than the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$0.70
MS average
$24.66

This provider's average cost per fill is below the MS average for this medication.

69
30-Day Fills
standardized to 30-day supplies
110
Days of Medication
total across all patients in 2023

About Metoclopramide Hcl: Metoclopramide is used by diabetic patients who have poor emptying of their stomachs (gastroparesis). Show more ▾

Treating gastroparesis can decrease symptoms of nausea, vomiting, and stomach/abdominal fullness. Metoclopramide works by blocking a natural substance (dopamine). It speeds up stomach emptying and movement of the upper intestines. This drug is not recommended for use in children due to an increased risk of serious side effects (such as muscle spasms/uncontrolled muscle movements). Ask the doctor or pharmacist for details. A dopamine D2 antagonist that is used as an antiemetic.

In 2023, this provider wrote 69 Medicare prescriptions for Metoclopramide Hcl, about 2.4 times the volume of the typical Mississippi prescriber of this medication (29). Medicare paid an average of $0.59 per fill, versus $9.52 statewide.

How often this provider prescribes it

This provider
69
MS average
29.0

This provider prescribes this medication more often than the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$0.59
MS average
$9.52

This provider's average cost per fill is below the MS average for this medication.

69
30-Day Fills
standardized to 30-day supplies
115
Days of Medication
total across all patients in 2023

About Diclofenac Sodium: See also Warning section. Show more ▾

This medication is used to relieve joint pain from arthritis. Diclofenac belongs to a class of drugs known as nonsteroidal anti-inflammatory drugs (NSAIDs). If you are treating a chronic condition such as arthritis, ask your doctor about non-drug treatments and/or using other medications to treat your pain. A non-steroidal anti-inflammatory agent (NSAID) with antipyretic and analgesic actions. It is primarily available as the sodium salt.

In 2023, this provider wrote 62 Medicare prescriptions for Diclofenac Sodium, about the same volume as the typical Mississippi prescriber of this medication (54). Medicare paid an average of $29.00 per fill, versus $26.71 statewide.

How often this provider prescribes it

This provider
62
MS average
54.0

This provider's prescribing volume for this medication is in line with the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$29.00
MS average
$26.71

Gross Part D cost per fill; not the patient's out-of-pocket price.

71.1
30-Day Fills
standardized to 30-day supplies
2,033
Days of Medication
total across all patients in 2023

About Hydrocodone-Acetaminophen: This combination medication is used to relieve moderate to severe pain. Show more ▾

It contains an opioid pain reliever (hydrocodone) and a non-opioid pain reliever (acetaminophen). Hydrocodone works in the brain to change how your body feels and responds to pain. Acetaminophen can also reduce a fever.

In 2023, this provider wrote 36 Medicare prescriptions for Hydrocodone-Acetaminophen, about a third of the volume of the typical Mississippi prescriber of this medication (118). Medicare paid an average of $6.70 per fill, versus $20.87 statewide.

How often this provider prescribes it

This provider
36
MS average
118.0

This provider prescribes this medication less often than the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$6.70
MS average
$20.87

This provider's average cost per fill is below the MS average for this medication.

36
30-Day Fills
standardized to 30-day supplies
171
Days of Medication
total across all patients in 2023

About Ondansetron Hcl: This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy. Show more ▾

It is also used to prevent and treat nausea and vomiting after surgery. It works by blocking one of the body's natural substances (serotonin) that causes vomiting.

In 2023, this provider wrote 28 Medicare prescriptions for Ondansetron Hcl, about 88% of the volume of the typical Mississippi prescriber of this medication (32). Medicare paid an average of $4.04 per fill, versus $21.22 statewide.

How often this provider prescribes it

This provider
28
MS average
32.0

This provider's prescribing volume for this medication is in line with the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$4.04
MS average
$21.22

This provider's average cost per fill is below the MS average for this medication.

28
30-Day Fills
standardized to 30-day supplies
115
Days of Medication
total across all patients in 2023

About Celecoxib: This medication is a nonsteroidal anti-inflammatory drug (NSAID), specifically a COX-2 inhibitor, which relieves pain and swelling (inflammation). Show more ▾

It is used to treat arthritis, acute pain, and menstrual pain and discomfort. The pain and swelling relief provided by this medication helps you perform more of your normal daily activities. If you are treating a chronic condition such as arthritis, ask your doctor about non-drug treatments and/or using other medications to treat your pain. See also Warning section. This drug works by blocking the enzyme in your body that makes prostaglandins. Decreasing prostaglandins helps to reduce pain and swelling. A pyrazole derivative and selective CYCLOOXYGENASE 2 INHIBITOR that is used to treat symptoms associated with RHEUMATOID ARTHRITIS; OSTEOARTHRITIS and JUVENILE ARTHRITIS, as well as the management of ACUTE PAIN.

In 2023, this provider wrote 25 Medicare prescriptions for Celecoxib, about 64% of the volume of the typical Mississippi prescriber of this medication (39). Medicare paid an average of $33.08 per fill, versus $45.00 statewide.

How often this provider prescribes it

This provider
25
MS average
39.0

This provider prescribes this medication less often than the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$33.08
MS average
$45.00

This provider's average cost per fill is below the MS average for this medication.

29
30-Day Fills
standardized to 30-day supplies
870
Days of Medication
total across all patients in 2023

About Ciprofloxacin Hcl: This medication is used to treat eye infections. Show more ▾

Ciprofloxacin belongs to a class of drugs called quinolone antibiotics. It works by stopping the growth of bacteria. This medication treats only bacterial eye infections. It will not work for other types of eye infections. Unnecessary use or overuse of any antibiotic can lead to its decreased effectiveness. A broad-spectrum antimicrobial carboxyfluoroquinoline.

In 2023, this provider wrote 23 Medicare prescriptions for Ciprofloxacin Hcl, about 74% of the volume of the typical Mississippi prescriber of this medication (31). Medicare paid an average of $10.82 per fill, versus $7.72 statewide.

How often this provider prescribes it

This provider
23
MS average
31.0

This provider prescribes this medication less often than the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$10.82
MS average
$7.72

Gross Part D cost per fill; not the patient's out-of-pocket price.

23
30-Day Fills
standardized to 30-day supplies
422
Days of Medication
total across all patients in 2023

About Acetaminophen-Codeine: See also Warning section. Show more ▾

This combination medication is used to help relieve mild to moderate pain. It contains an opioid pain reliever (codeine) and a non-opioid pain reliever (acetaminophen). Codeine works in the brain to change how your body feels and responds to pain. Acetaminophen can also reduce a fever.

In 2023, this provider wrote 14 Medicare prescriptions for Acetaminophen-Codeine, about a third of the volume of the typical Mississippi prescriber of this medication (34). Medicare paid an average of $5.29 per fill, versus $14.21 statewide.

How often this provider prescribes it

This provider
14
MS average
34.0

This provider prescribes this medication less often than the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$5.29
MS average
$14.21

This provider's average cost per fill is below the MS average for this medication.

14
30-Day Fills
standardized to 30-day supplies
98
Days of Medication
total across all patients in 2023

About Amoxicillin: Amoxicillin is used to treat a wide variety of bacterial infections. Show more ▾

This medication is a penicillin-type antibiotic. It works by stopping the growth of bacteria. This antibiotic treats only bacterial infections. It will not work for viral infections (such as common cold, flu). Using any antibiotic when it is not needed can cause it to not work for future infections. Amoxicillin is also used with other medications to treat stomach/intestinal ulcers caused by the bacteria H. pylori and to prevent the ulcers from returning. A broad-spectrum semisynthetic antibiotic similar to AMPICILLIN except that its resistance to gastric acid permits higher serum levels with oral administration.

In 2023, this provider wrote 13 Medicare prescriptions for Amoxicillin, about a third of the volume of the typical Mississippi prescriber of this medication (38). Medicare paid an average of $1.07 per fill, versus $4.30 statewide.

How often this provider prescribes it

This provider
13
MS average
38.0

This provider prescribes this medication less often than the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$1.07
MS average
$4.30

This provider's average cost per fill is below the MS average for this medication.

13
30-Day Fills
standardized to 30-day supplies
19
Days of Medication
total across all patients in 2023

About Ondansetron Odt: This medication is used alone or with other medications to prevent nausea and vomiting caused by cancer drug treatment (chemotherapy) and radiation therapy. Show more ▾

It is also used to prevent and treat nausea and vomiting after surgery. Ondansetron works by blocking one of the body's natural substances (serotonin) that causes vomiting. A competitive serotonin type 3 receptor antagonist. It is effective in the treatment of nausea and vomiting caused by cytotoxic chemotherapy drugs, including cisplatin, and has reported anxiolytic and neuroleptic properties.

In 2023, this provider wrote 13 Medicare prescriptions for Ondansetron Odt, about half the volume of the typical Mississippi prescriber of this medication (27). Medicare paid an average of $9.48 per fill, versus $21.51 statewide.

How often this provider prescribes it

This provider
13
MS average
27.0

This provider prescribes this medication less often than the average MS prescriber. Utilization reflects practice size as well as clinical preference.

What Medicare paid per fill

This provider
$9.48
MS average
$21.51

This provider's average cost per fill is below the MS average for this medication.

13
30-Day Fills
standardized to 30-day supplies
80
Days of Medication
total across all patients in 2023
No medications match the current filters.
= the 5 medications this provider prescribes most. More than typical Typical Less than typical= prescription volume vs the average MS prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the MS average cost per fill.

About this data. The prescription history for DR. FREDERICK O'NEAL GREGG D.O. is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2023, the most recent federal release. Figures cover prescriptions filled for Medicare Part D beneficiaries only; prescriptions under private insurance, Medicaid, or self-pay plans are not included. Because prescribing decisions are generally consistent across coverage types, this record offers a useful view of the overall Orthopaedic Surgery prescribing approach at this Hattiesburg, MS practice.

Reading the costs. Drug costs are gross amounts paid to pharmacies under Part D, including both plan and beneficiary payments. They are not the price a patient pays at the pharmacy counter. Medications with fewer than 11 claims are excluded from the federal source data, and state comparisons use the average volume among MS prescribers of the same medication. Always confirm current medications and costs directly with the provider and your plan.