ROBERT A. UNDERWOOD M.D.
Prescription History 1063570521
Surgery in Marietta, GA

Active since December 05, 2006PECOS Enrolled
598 NANCY ST NW STE 250, MARIETTA, GA 30060(770) 428-3713(770) 426-0730 Get Directions

NPPES record last updated: November 1, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for ROBERT A. UNDERWOOD M.D., an active Surgery specialist practicing in Marietta, GA. Our medical registry currently tracks 3 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 67 documented patient claims. Among these therapy options, the most frequently utilized medication is Tramadol Hcl, which accounts for 33 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.

3
Medications
67
Total Claims
91
30-Day Fills
Tramadol Hcl
Most Prescribed · 33 claims
View details
3 medications · 2024 Medicare Part D
Medicare Part D medications prescribed by ROBERT A. UNDERWOOD M.D. in 2024, with prescription volumes, average cost per fill, and GA state comparisons
Medication Prescriptions (2024)Rx (2024) Avg Cost per FillCost / Fill Vs. Other GA PrescribersVs. GA Avg
Tramadol Hcl33$1.75▼ below GA avg▼ Less than typical

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 2024, this provider wrote 33 Medicare prescriptions for Tramadol Hcl, about half the volume of the typical Georgia prescriber of this medication (70.5). Medicare paid an average of $1.75 per fill, versus $6.30 statewide.

How often this provider prescribes it

This provider
33
GA average
70.5

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

What Medicare paid per fill

This provider
$1.75
GA average
$6.30

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

33
30-Day Fills
standardized to 30-day supplies
124
Days of Medication
total across all patients in 2024
Promethazine Hcl22$2.09▼ below GA avg▼ Less than typical

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

Promethazine is used to prevent and treat nausea and vomiting related to certain conditions (such as before/after surgery, motion sickness). It is also used to treat allergy symptoms such as rash, itching, and runny nose. It may be used to help you feel sleepy/relaxed before and after surgery or to help certain opioid pain relievers (such as meperidine) work better. It may also be used for a short time to treat a runny nose due to the common cold. Promethazine is an antihistamine and works by blocking a certain natural substance (histamine) that your body makes during an allergic reaction. Its other effects (such as anti-nausea, calming, pain relief) may work by affecting other natural substances (such as acetylcholine) and by acting directly on certain parts of the brain. Cough-and-cold products have not been shown to be safe or effective in children younger than 6 years. Do not use this product to treat cold symptoms in children younger than 6 years unless specifically directed by the doctor. Some products (such as long-acting tablets/capsules) are not recommended for use in children younger than 12 years. Ask your doctor or pharmacist for more details about using your product safely. These products do not cure or shorten the length of the common cold and may cause serious side effects. To decrease the risk for serious side effects, carefully follow all dosage directions. Do not give other cough-and-cold medication that might contain the same or similar ingredients (see also Drug Interactions section). Ask the doctor or pharmacist about other ways to relieve cough and cold symptoms (such as drinking enough fluids, using a humidifier or saline nose drops/spray). A phenothiazine derivative with histamine H1-blocking, antimuscarinic, and sedative properties. It is used as an antiallergic, in pruritus, for motion sickness and sedation, and also in animals.

In 2024, this provider wrote 22 Medicare prescriptions for Promethazine Hcl, about 74% of the volume of the typical Georgia prescriber of this medication (29.6). Medicare paid an average of $2.09 per fill, versus $9.04 statewide.

How often this provider prescribes it

This provider
22
GA average
29.6

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

What Medicare paid per fill

This provider
$2.09
GA average
$9.04

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

22
30-Day Fills
standardized to 30-day supplies
52
Days of Medication
total across all patients in 2024
Levothyroxine Sodium12$10.96▼ Less than typical

About Levothyroxine Sodium: Levothyroxine is used to treat an underactive thyroid (hypothyroidism). Show more ▾

It replaces or provides more thyroid hormone, which is normally produced by the thyroid gland. Low thyroid hormone levels can occur naturally or when the thyroid gland is injured by radiation/medications or removed by surgery. Having enough thyroid hormone is important for maintaining normal mental and physical activity. In children, having enough thyroid hormone is important for normal mental and physical development. This medication is also used to treat other types of thyroid disorders (such as thyroid cancer). This medication should not be used to treat infertility unless it is caused by low thyroid hormone levels. The major hormone derived from the thyroid gland. Thyroxine is synthesized via the iodination of tyrosines (MONOIODOTYROSINE) and the coupling of iodotyrosines (DIIODOTYROSINE) in the THYROGLOBULIN. Thyroxine is released from thyroglobulin by proteolysis and secreted into the blood. Thyroxine is peripherally deiodinated to form TRIIODOTHYRONINE which exerts a broad spectrum of stimulatory effects on cell metabolism.

In 2024, this provider wrote 12 Medicare prescriptions for Levothyroxine Sodium, about 7% of the volume of the typical Georgia prescriber of this medication (164). Medicare paid an average of $10.96 per fill, versus $9.49 statewide.

How often this provider prescribes it

This provider
12
GA average
164.0

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

What Medicare paid per fill

This provider
$10.96
GA average
$9.49

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

36
30-Day Fills
standardized to 30-day supplies
1,080
Days of Medication
total across all patients in 2024
No medications match the current filters.
▲ More than typical≈ Typical▼ Less than typical= prescription volume vs the average GA prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the GA average cost per fill.

About this data. The prescription history for ROBERT A. UNDERWOOD M.D. is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2024, 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 Surgery prescribing approach at this Marietta, GA 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 among GA prescribers of the same medication and form, shown only when at least five prescribers contribute. Always confirm current medications and costs directly with the provider and your plan.

About the medication summaries. Drug use descriptions come from the CMS Medicare Part D Drug Spending Dashboard (2024), and substance definitions from Medical Subject Headings (MeSH) 2026, U.S. National Library of Medicine. They are summaries that do not contain all possible information about a medication and are not individual medical advice. Ask a health care professional about any medication and your specific health needs.