CHARLOTTE ROBERTSHAW NP
Prescription History 1780378406
Nurse Practitioner - Primary Care in Boston, MA

Active since June 06, 2023PECOS EnrolledAccepts Medicare Assignment
53 STATE ST, BOSTON, MA 02109(617) 903-5000(415) 252-7176 Get Directions

NPPES record last updated: March 14, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 14, 2025, Feb 19, 2025, Jun 6, 2023 (3 updates tracked since 2023).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for CHARLOTTE ROBERTSHAW NP, an active Primary Care specialist practicing in Boston, MA. Our medical registry currently tracks 9 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 162 documented patient claims. Among these therapy options, the most frequently utilized medication is Gabapentin, which accounts for 38 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.

9
Medications
162
Total Claims
311
30-Day Fills
Gabapentin
Most Prescribed · 38 claims
View details
9 medications · 2024 Medicare Part D
Medicare Part D medications prescribed by CHARLOTTE ROBERTSHAW NP in 2024, with prescription volumes, average cost per fill, and MA state comparisons
Medication Prescriptions (2024)Rx (2024) Avg Cost per FillCost / Fill Vs. Other MA PrescribersVs. MA Avg

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 2024, this provider wrote 38 Medicare prescriptions for Gabapentin, about half the volume of the typical Massachusetts prescriber of this medication (80.5). Medicare paid an average of $9.87 per fill, versus $14.49 statewide.

How often this provider prescribes it

This provider
38
MA average
80.5

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

What Medicare paid per fill

This provider
$9.87
MA average
$14.49

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

70.9
30-Day Fills
standardized to 30-day supplies
2,039
Days of Medication
total across all patients in 2024

About Atorvastatin Calcium: Atorvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood. Show more ▾

It belongs to a group of drugs known as "statins." It works by reducing the amount of cholesterol made by the liver. Lowering "bad" cholesterol and triglycerides and raising "good" cholesterol decreases the risk of heart disease and helps prevent strokes and heart attacks. In addition to eating a proper diet (such as a low-cholesterol/low-fat diet), other lifestyle changes that may help this medication work better include exercising, losing weight if overweight, and stopping smoking. Consult your doctor for more details. A pyrrole and heptanoic acid derivative, HYDROXYMETHYLGLUTARYL-COA REDUCTASE INHIBITOR (statin), and ANTICHOLESTEREMIC AGENT that is used to reduce serum levels of LDL-CHOLESTEROL; APOLIPOPROTEIN B; and TRIGLYCERIDES. It is used to increase serum levels of HDL-CHOLESTEROL in the treatment of HYPERLIPIDEMIAS, and for the prevention of CARDIOVASCULAR DISEASES in patients with multiple risk factors.

In 2024, this provider wrote 23 Medicare prescriptions for Atorvastatin Calcium, about 12% of the volume of the typical Massachusetts prescriber of this medication (188). Medicare paid an average of $5.05 per fill, versus $13.82 statewide.

How often this provider prescribes it

This provider
23
MA average
188.0

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

What Medicare paid per fill

This provider
$5.05
MA average
$13.82

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

69
30-Day Fills
standardized to 30-day supplies
2,070
Days of Medication
total across all patients in 2024

About Duloxetine Hcl: This medication is used to treat certain mental/mood disorders (such as depression, anxiety). Show more ▾

It is also used to help relieve nerve pain (peripheral neuropathy) in people with diabetes or ongoing pain due to medical conditions such as arthritis, chronic back pain, or fibromyalgia (a condition that causes widespread pain). Duloxetine belongs to a class of drugs known as serotonin-norepinephrine reuptake inhibitors (SNRIs). It works by helping to restore the balance of certain natural substances (serotonin and norepinephrine) in the brain. A thiophene derivative and selective NEUROTRANSMITTER UPTAKE INHIBITOR for SEROTONIN and NORADRENALINE (SNRI). It is an ANTIDEPRESSIVE AGENT and ANXIOLYTIC, and is also used for the treatment of pain in patients with DIABETES MELLITUS and FIBROMYALGIA.

In 2024, this provider wrote 17 Medicare prescriptions for Duloxetine Hcl, about a third of the volume of the typical Massachusetts prescriber of this medication (41.8). Medicare paid an average of $12.88 per fill, versus $26.82 statewide.

How often this provider prescribes it

This provider
17
MA average
41.8

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

What Medicare paid per fill

This provider
$12.88
MA average
$26.82

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

35
30-Day Fills
standardized to 30-day supplies
1,040
Days of Medication
total across all patients in 2024

About Losartan Potassium: Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes. Show more ▾

It is also used to lower the risk of strokes in patients with high blood pressure and an enlarged heart. Lowering high blood pressure helps prevent strokes, heart attacks, and kidney problems. Losartan belongs to a class of drugs called angiotensin receptor blockers (ARBs). It works by relaxing blood vessels so that blood can flow more easily. An antagonist of ANGIOTENSIN TYPE 1 RECEPTOR with antihypertensive activity due to the reduced pressor effect of ANGIOTENSIN II.

In 2024, this provider wrote 17 Medicare prescriptions for Losartan Potassium, about 19% of the volume of the typical Massachusetts prescriber of this medication (89.9). Medicare paid an average of $3.74 per fill, versus $11.50 statewide.

How often this provider prescribes it

This provider
17
MA average
89.9

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

What Medicare paid per fill

This provider
$3.74
MA average
$11.50

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

31
30-Day Fills
standardized to 30-day supplies
927
Days of Medication
total across all patients in 2024

About Fentanyl: This medication is used to help relieve severe ongoing pain (such as due to cancer). Show more ▾

Fentanyl 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. Do not use the patch form of fentanyl to relieve pain that is mild or that will go away in a few days. This medication is not for occasional ("as needed") use. A potent narcotic analgesic, abuse of which leads to habituation or addiction. It is primarily a mu-opioid agonist. Fentanyl is also used as an adjunct to general anesthetics, and as an anesthetic for induction and maintenance. (From Martindale, The Extra Pharmacopoeia, 30th ed, p1078)

In 2024, this provider wrote 16 Medicare prescriptions for Fentanyl, about 68% of the volume of the typical Massachusetts prescriber of this medication (23.5). Medicare paid an average of $36.15 per fill, versus $105.83 statewide.

How often this provider prescribes it

This provider
16
MA average
23.5

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

What Medicare paid per fill

This provider
$36.15
MA average
$105.83

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

16
30-Day Fills
standardized to 30-day supplies
240
Days of Medication
total across all patients in 2024

About Venlafaxine Hcl Er: This medication is used to treat certain mental/mood disorders (such as depression, anxiety, panic attacks, and social anxiety disorder). Show more ▾

Venlafaxine belongs to a class of drugs known as serotonin-norepinephrine reuptake inhibitors (SNRIs). It works by helping to restore the balance of certain natural substances (serotonin and norepinephrine) in the brain. A cyclohexanol and phenylethylamine derivative that functions as a SEROTONIN AND NORADRENALINE REUPTAKE INHIBITOR (SNRI) and is used as an ANTIDEPRESSIVE AGENT.

In 2024, this provider wrote 15 Medicare prescriptions for Venlafaxine Hcl Er, about half the volume of the typical Massachusetts prescriber of this medication (34.2). Medicare paid an average of $12.49 per fill, versus $20.54 statewide.

How often this provider prescribes it

This provider
15
MA average
34.2

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

What Medicare paid per fill

This provider
$12.49
MA average
$20.54

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

25
30-Day Fills
standardized to 30-day supplies
747
Days of Medication
total across all patients in 2024

About Rosuvastatin Calcium: Rosuvastatin is used along with a proper diet to help lower "bad" cholesterol and fats (such as LDL, triglycerides) and raise "good" cholesterol (HDL) in the blood. Show more ▾

It belongs to a group of drugs known as "statins." It works by reducing the amount of cholesterol made by the liver. Lowering "bad" cholesterol and triglycerides and raising "good" cholesterol decreases the risk of heart disease and helps to prevent strokes and heart attacks. In addition to eating a proper diet (such as a low cholesterol/low-fat diet), other lifestyle changes that may help this medication work better include exercising, losing weight if overweight, and stopping smoking. Talk with your doctor for more details. A HYDROXYMETHYLGLUTARYL-COA-REDUCTASE INHIBITOR, or statin, that reduces the plasma concentrations of LDL-CHOLESTEROL; APOLIPOPROTEIN B, and TRIGLYCERIDES while increasing HDL-CHOLESTEROL levels in patients with HYPERCHOLESTEROLEMIA and those at risk for CARDIOVASCULAR DISEASES.

In 2024, this provider wrote 14 Medicare prescriptions for Rosuvastatin Calcium, about 18% of the volume of the typical Massachusetts prescriber of this medication (79.3). Medicare paid an average of $11.98 per fill, versus $28.16 statewide.

How often this provider prescribes it

This provider
14
MA average
79.3

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

What Medicare paid per fill

This provider
$11.98
MA average
$28.16

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

42
30-Day Fills
standardized to 30-day supplies
1,260
Days of Medication
total across all patients in 2024

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 2024, this provider wrote 11 Medicare prescriptions for Oxycodone Hcl, about a quarter of the volume of the typical Massachusetts prescriber of this medication (44.8). Medicare paid an average of $57.00 per fill, versus $12.16 statewide.

How often this provider prescribes it

This provider
11
MA average
44.8

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

What Medicare paid per fill

This provider
$57.00
MA average
$12.16

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

11
30-Day Fills
standardized to 30-day supplies
290
Days of Medication
total across all patients in 2024

About Tamsulosin Hcl: Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH). Show more ▾

It does not shrink the prostate, but it works by relaxing the muscles in the prostate and the bladder. This helps to relieve symptoms of BPH such as difficulty in beginning the flow of urine, weak stream, and the need to urinate often or urgently (including during the middle of the night). Tamsulosin belongs to a class of drugs known as alpha blockers. Do not use this medication to treat high blood pressure. A sulfonamide derivative and adrenergic alpha-1 receptor antagonist that is used to relieve symptoms of urinary obstruction caused by BENIGN PROSTATIC HYPERPLASIA.

In 2024, this provider wrote 11 Medicare prescriptions for Tamsulosin Hcl, about 14% of the volume of the typical Massachusetts prescriber of this medication (78). Medicare paid an average of $15.85 per fill, versus $17.30 statewide.

How often this provider prescribes it

This provider
11
MA average
78.0

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

What Medicare paid per fill

This provider
$15.85
MA average
$17.30

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

11
30-Day Fills
standardized to 30-day supplies
327
Days of Medication
total across all patients in 2024
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 MA prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the MA average cost per fill.

About this data. The prescription history for CHARLOTTE ROBERTSHAW NP 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 Primary Care prescribing approach at this Boston, MA 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 MA 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.