MUHAMMAD NADEEM SHAMSI M.D.
Prescription History 1609843721
Psychiatry & Neurology - Psychiatry in Plymouth Meeting, PA
What does Dr. Shamsi prescribe?
In 2024, Dr. Shamsi wrote 8,072 Medicare prescriptions for 76 medications. The most prescribed was Quetiapine Fumarate, with 668 prescriptions for 90 patients.
Medicare Part D only. These are prescriptions filled by people with Medicare drug coverage in 2024, from the CMS data released in 2026, the most recent year available. CMS does not publish medications with fewer than 11 prescriptions, so this is not a full list of what Dr. Shamsi prescribes.
Medications 76 medications
Prescriptions filled under Medicare Part D in 2024. Select a medication to see what it is used for and how it compares with other Pennsylvania prescribers.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder, sudden episodes of mania or depression associated with bipolar disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 668 prescriptions for Quetiapine Fumarate, about 10 times as often as the typical Pennsylvania prescriber of it (66). Medicare paid $16.64 per fill, versus $15.84 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Clonazepam is used to prevent and control seizures.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 557 prescriptions for Clonazepam, about 10 times as often as the typical Pennsylvania prescriber of it (54). Medicare paid $4.48 per fill, versus $7.62 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat anxiety.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 527 prescriptions for Lorazepam, about 8.7 times as often as the typical Pennsylvania prescriber of it (61). Medicare paid $5.34 per fill, versus $6.77 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lamotrigine is used alone or with other medications to prevent and control seizures.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 466 prescriptions for Lamotrigine, about 8.8 times as often as the typical Pennsylvania prescriber of it (53). Medicare paid $7.44 per fill, versus $13.86 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 444 prescriptions for Olanzapine, about 8.1 times as often as the typical Pennsylvania prescriber of it (55). Medicare paid $13.92 per fill, versus $21.77 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder, irritability associated with autistic disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 437 prescriptions for Risperidone, about 7.5 times as often as the typical Pennsylvania prescriber of it (59). Medicare paid $8.87 per fill, versus $13.38 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Gabapentin is used with other medications to prevent and control seizures.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 301 prescriptions for Gabapentin, about 3 times as often as the typical Pennsylvania prescriber of it (100). Medicare paid $14.80 per fill, versus $14.77 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as bipolar disorder, schizophrenia, Tourette's syndrome, and irritability associated with autistic disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 239 prescriptions for Aripiprazole, about 4.8 times as often as the typical Pennsylvania prescriber of it (50). Medicare paid $66.49 per fill, versus $62.65 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 226 prescriptions for Fluoxetine Hcl, about 5.2 times as often as the typical Pennsylvania prescriber of it (44). Medicare paid $7.65 per fill, versus $11.98 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 217 prescriptions for Trazodone Hcl, about 3.2 times as often as the typical Pennsylvania prescriber of it (68). Medicare paid $8.71 per fill, versus $8.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 202 prescriptions for Mirtazapine, about 3.6 times as often as the typical Pennsylvania prescriber of it (56). Medicare paid $12.44 per fill, versus $17.20 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Alprazolam is used to treat anxiety and panic disorders.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 191 prescriptions for Alprazolam, about 2.9 times as often as the typical Pennsylvania prescriber of it (66). Medicare paid $4.18 per fill, versus $5.46 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Hydroxyzine is used to treat itching caused by allergies.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 179 prescriptions for Hydroxyzine Hcl, about 5.5 times as often as the typical Pennsylvania prescriber of it (33). Medicare paid $13.08 per fill, versus $14.22 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Diazepam is used to treat anxiety, alcohol withdrawal, and seizures.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 172 prescriptions for Diazepam, about 6.6 times as often as the typical Pennsylvania prescriber of it (26). Medicare paid $3.00 per fill, versus $6.26 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, anxiety disorders, post-traumatic stress disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 166 prescriptions for Paroxetine Hcl, about 5.6 times as often as the typical Pennsylvania prescriber of it (30). Medicare paid $8.68 per fill, versus $12.73 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, panic attacks, obsessive compulsive disorder, post-traumatic stress disorder, social anxiety disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 159 prescriptions for Sertraline Hcl, about 1.9 times as often as the typical Pennsylvania prescriber of it (83). Medicare paid $9.94 per fill, versus $10.05 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat manic-depressive disorder (bipolar disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 156 prescriptions for Lithium Carbonate, about 4.8 times as often as the typical Pennsylvania prescriber of it (32). Medicare paid $8.61 per fill, versus $8.66 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat anxiety.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 143 prescriptions for Buspirone Hcl, about 2.7 times as often as the typical Pennsylvania prescriber of it (53). Medicare paid $11.88 per fill, versus $13.30 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 137 prescriptions for Duloxetine Hcl, about 2.2 times as often as the typical Pennsylvania prescriber of it (62). Medicare paid $19.83 per fill, versus $23.41 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Zolpidem is used for a short time to treat a certain sleep problem (insomnia) in adults.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 131 prescriptions for Zolpidem Tartrate, about 3.1 times as often as the typical Pennsylvania prescriber of it (42). Medicare paid $3.79 per fill, versus $5.45 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat seizure disorders, certain psychiatric conditions (manic phase of bipolar disorder), and to prevent migraine headaches.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 119 prescriptions for Divalproex Sodium, about 2.2 times as often as the typical Pennsylvania prescriber of it (55). Medicare paid $47.99 per fill, versus $35.25 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Oxcarbazepine is used alone or with other medications to treat seizure disorders (epilepsy).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 113 prescriptions for Oxcarbazepine, about 3.7 times as often as the typical Pennsylvania prescriber of it (30). Medicare paid $38.98 per fill, versus $43.50 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety, panic attacks, and social anxiety disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 107 prescriptions for Venlafaxine Hcl Er, about 2.5 times as often as the typical Pennsylvania prescriber of it (42). Medicare paid $12.25 per fill, versus $20.33 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 92 prescriptions for Escitalopram Oxalate, about 1.4 times as often as the typical Pennsylvania prescriber of it (67). Medicare paid $7.33 per fill, versus $12.00 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Benztropine is used to treat symptoms of Parkinson's disease or involuntary movements due to the side effects of certain psychiatric drugs (antipsychotics such as chlorpromazine/haloperidol).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 86 prescriptions for Benztropine Mesylate, about 1.6 times as often as the typical Pennsylvania prescriber of it (54). Medicare paid $14.25 per fill, versus $10.79 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 80 prescriptions for Bupropion Hcl, about 3.5 times as often as the typical Pennsylvania prescriber of it (23). Medicare paid $10.87 per fill, versus $20.99 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 79 prescriptions for Bupropion Xl, about 1.9 times as often as the typical Pennsylvania prescriber of it (41). Medicare paid $15.97 per fill, versus $25.57 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 78 prescriptions for Desvenlafaxine Succinate Er, about 3 times as often as the typical Pennsylvania prescriber of it (26). Medicare paid $37.71 per fill, versus $46.97 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a certain sleep problem (insomnia).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 76 prescriptions for Temazepam, about 3.2 times as often as the typical Pennsylvania prescriber of it (24). Medicare paid $9.14 per fill, versus $13.55 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 72 prescriptions for Citalopram Hbr, about 1.6 times as often as the typical Pennsylvania prescriber of it (46). Medicare paid $4.75 per fill, versus $7.50 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
See also Warning section.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 67 prescriptions for Clozapine, about as often as the typical Pennsylvania prescriber of it (68). Medicare paid $39.46 per fill, versus $64.04 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat seizure disorders, mental/mood conditions (such as manic phase of bipolar disorder), and to prevent migraine headaches.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 64 prescriptions for Divalproex Sodium Er, about 1.7 times as often as the typical Pennsylvania prescriber of it (39). Medicare paid $90.11 per fill, versus $49.38 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder, sudden episodes of mania or depression associated with bipolar disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 64 prescriptions for Quetiapine Fumarate Er, about 2.6 times as often as the typical Pennsylvania prescriber of it (25). Medicare paid $47.56 per fill, versus $73.73 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 62 prescriptions for Nortriptyline Hcl, about 2.5 times as often as the typical Pennsylvania prescriber of it (24). Medicare paid $17.90 per fill, versus $13.89 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat the panic and anxiety symptoms associated with panic disorder.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 55 prescriptions for Alprazolam Er, about 3.4 times as often as the typical Pennsylvania prescriber of it (16). Medicare paid $23.34 per fill, versus $27.80 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, schizoaffective disorders).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 53 prescriptions for Haloperidol, about 1.4 times as often as the typical Pennsylvania prescriber of it (39). Medicare paid $31.97 per fill, versus $25.82 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, depression associated with bipolar disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 53 prescriptions for Lurasidone Hcl, about 1.8 times as often as the typical Pennsylvania prescriber of it (30). Medicare paid $107.60 per fill, versus $223.91 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to treat attention deficit hyperactivity disorder - ADHD.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 52 prescriptions for Dextroamphetamine-Amphetamine, about 1.7 times as often as the typical Pennsylvania prescriber of it (31). Medicare paid $25.10 per fill, versus $25.79 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat obsessive-compulsive disorder (OCD).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 52 prescriptions for Fluvoxamine Maleate Er, about 3.2 times as often as the typical Pennsylvania prescriber of it (16). Medicare paid $86.20 per fill, versus $188.49 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Hydroxyzine is used to treat itching caused by allergies.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 46 prescriptions for Hydroxyzine Pamoate, about 1.3 times as often as the typical Pennsylvania prescriber of it (34). Medicare paid $9.96 per fill, versus $11.62 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, schizoaffective disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 45 prescriptions for Invega Sustenna, about 1.2 times as often as the typical Pennsylvania prescriber of it (38). Medicare paid $2,850.81 per fill, versus $3,049.78 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is a beta blocker used to treat high blood pressure, irregular heartbeats, shaking (tremors), and other conditions.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 44 prescriptions for Propranolol Hcl, about 1.7 times as often as the typical Pennsylvania prescriber of it (25). Medicare paid $10.30 per fill, versus $16.91 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Carbamazepine is used to prevent and control seizures.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 42 prescriptions for Carbamazepine, about 1.7 times as often as the typical Pennsylvania prescriber of it (25). Medicare paid $41.18 per fill, versus $45.75 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used alone or with other medications to treat high blood pressure (hypertension).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 42 prescriptions for Clonidine Hcl, about 1.5 times as often as the typical Pennsylvania prescriber of it (29). Medicare paid $5.48 per fill, versus $7.12 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat manic-depressive disorder (bipolar disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 40 prescriptions for Lithium Carbonate Er, about 1.4 times as often as the typical Pennsylvania prescriber of it (28). Medicare paid $8.73 per fill, versus $14.75 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat attention deficit hyperactivity disorder - ADHD.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 39 prescriptions for Methylphenidate Hcl, about 1.9 times as often as the typical Pennsylvania prescriber of it (21). Medicare paid $12.19 per fill, versus $20.33 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, manic phase of bipolar disorder, schizoaffective disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 38 prescriptions for Perphenazine, about 1.2 times as often as the typical Pennsylvania prescriber of it (30). Medicare paid $46.59 per fill, versus $45.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to prevent people who have been addicted to certain drugs (opiates) from taking them again.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 37 prescriptions for Naltrexone Hcl, about 1.8 times as often as the typical Pennsylvania prescriber of it (21). Medicare paid $29.11 per fill, versus $45.65 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Donepezil is used to treat confusion (dementia) related to Alzheimer's disease.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 36 prescriptions for Donepezil Hcl, about half as often as the typical Pennsylvania prescriber of it (63). Medicare paid $6.98 per fill, versus $13.34 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as bipolar disorder, depression, schizophrenia).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 36 prescriptions for Vraylar, about 1.2 times as often as the typical Pennsylvania prescriber of it (31). Medicare paid $1,411.46 per fill, versus $1,397.66 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, bipolar disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 36 prescriptions for Ziprasidone Hcl, about as often as the typical Pennsylvania prescriber of it (32). Medicare paid $33.20 per fill, versus $50.18 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat obsessive-compulsive disorder (OCD).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 32 prescriptions for Fluvoxamine Maleate, about 1.2 times as often as the typical Pennsylvania prescriber of it (27). Medicare paid $26.08 per fill, versus $36.98 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 31 prescriptions for Trintellix, about 1.2 times as often as the typical Pennsylvania prescriber of it (25). Medicare paid $478.87 per fill, versus $551.59 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 30 prescriptions for Bupropion Hcl Sr, about as often as the typical Pennsylvania prescriber of it (31). Medicare paid $10.88 per fill, versus $18.85 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as depression, anxiety).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 29 prescriptions for Doxepin Hcl, about as often as the typical Pennsylvania prescriber of it (27). Medicare paid $34.97 per fill, versus $42.26 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Buprenorphine is used to treat opioid use disorder.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 26 prescriptions for Buprenorphine Hcl, about 66% as often as the typical Pennsylvania prescriber of it (39). Medicare paid $12.86 per fill, versus $40.13 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 26 prescriptions for Fluphenazine Hcl, about as often as the typical Pennsylvania prescriber of it (25). Medicare paid $75.04 per fill, versus $137.49 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 23 prescriptions for Amitriptyline Hcl, about 86% as often as the typical Pennsylvania prescriber of it (27). Medicare paid $3.69 per fill, versus $13.48 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Atomoxetine is used to treat attention-deficit hyperactivity disorder (ADHD) as part of a total treatment plan, including psychological, social, and other treatments.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 21 prescriptions for Atomoxetine Hcl, about as often as the typical Pennsylvania prescriber of it (22). Medicare paid $39.13 per fill, versus $71.24 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat depression.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 19 prescriptions for Vilazodone Hcl, about 86% as often as the typical Pennsylvania prescriber of it (22). Medicare paid $103.72 per fill, versus $90.74 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Deutetrabenazine is used to decrease involuntary movements (chorea) caused by Huntington's disease.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 18 prescriptions for Austedo Xr, about 87% as often as the typical Pennsylvania prescriber of it (21). Medicare paid $8,242.90 per fill, versus $7,155.38 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Prazosin is used with or without other medications to treat high blood pressure.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 16 prescriptions for Prazosin Hcl, about half as often as the typical Pennsylvania prescriber of it (35). Medicare paid $18.52 per fill, versus $14.42 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat sleeplessness (insomnia).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 16 prescriptions for Ramelteon, about 82% as often as the typical Pennsylvania prescriber of it (20). Medicare paid $55.46 per fill, versus $90.33 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Carbamazepine is used to prevent and control seizures.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 14 prescriptions for Carbamazepine Er, about half as often as the typical Pennsylvania prescriber of it (24). Medicare paid $171.61 per fill, versus $99.02 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a certain sleep problem (insomnia).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 14 prescriptions for Quviviq, about 85% as often as the typical Pennsylvania prescriber of it (17). Medicare paid $445.65 per fill, versus $465.04 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Deutetrabenazine is used to decrease involuntary movements (chorea) caused by Huntington's disease.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 13 prescriptions for Austedo, about half as often as the typical Pennsylvania prescriber of it (23). Medicare paid $7,223.91 per fill, versus $6,628.34 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, episodes of depression associated with bipolar disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 13 prescriptions for Caplyta, about 65% as often as the typical Pennsylvania prescriber of it (20). Medicare paid $1,463.03 per fill, versus $1,599.45 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This combination medication is used to treat attention deficit hyperactivity disorder - ADHD.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 13 prescriptions for Dextroamphetamine-Amphet Er, about half as often as the typical Pennsylvania prescriber of it (22). Medicare paid $23.43 per fill, versus $51.40 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a certain sleep problem (insomnia).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 12 prescriptions for Dayvigo, about 72% as often as the typical Pennsylvania prescriber of it (17). Medicare paid $332.19 per fill, versus $334.64 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat a certain sleep problem (insomnia).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 12 prescriptions for Eszopiclone, about 64% as often as the typical Pennsylvania prescriber of it (19). Medicare paid $9.04 per fill, versus $19.59 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, schizoaffective disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 12 prescriptions for Invega, about 88% as often as the typical Pennsylvania prescriber of it (14). Medicare paid $361.68 per fill, versus $462.68 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 12 prescriptions for Levothyroxine Sodium, about 7% as often as the typical Pennsylvania prescriber of it (175). Medicare paid $16.81 per fill, versus $10.98 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
This medication is used to treat certain mental/mood disorders (such as schizophrenia, schizoaffective disorder).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 12 prescriptions for Paliperidone Er, about half as often as the typical Pennsylvania prescriber of it (26). Medicare paid $60.38 per fill, versus $201.10 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Progesterone is a type of hormone (progestin).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 12 prescriptions for Progesterone, about half as often as the typical Pennsylvania prescriber of it (28). Medicare paid $133.01 per fill, versus $37.53 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Lisdexamfetamine is used to treat attention deficit hyperactivity disorder (ADHD) as part of a total treatment plan, including psychological, social, and other treatments.
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 12 prescriptions for Vyvanse, about 73% as often as the typical Pennsylvania prescriber of it (16). Medicare paid $377.22 per fill, versus $395.48 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
What it is used for
Modafinil reduces extreme sleepiness due to narcolepsy and other sleep disorders, such as periods of stopped breathing during sleep (obstructive sleep apnea).
Compared with Pennsylvania prescribers
Dr. Shamsi wrote 11 prescriptions for Modafinil, about half as often as the typical Pennsylvania prescriber of it (22). Medicare paid $8.59 per fill, versus $65.98 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Dr. Shamsi’s prescriptions
What does Dr. Shamsi prescribe most?
In 2024 Medicare Part D data, Dr. Shamsi's most prescribed medications were Quetiapine Fumarate (668), Clonazepam (557) and Lorazepam (527).
How does Dr. Shamsi's prescribing compare with other Pennsylvania prescribers?
Of the 76 medications with a state comparison, Dr. Shamsi prescribes 45 more often than the typical Pennsylvania prescriber, 17 about as often and 14 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Dr. Shamsi prescribes?
No. It covers prescriptions filled by people with Medicare Part D drug coverage in 2024, and CMS leaves out any medication with fewer than 11 prescriptions.
About this data
This page shows one provider’s slice of public Medicare files. NPI Profile does not receive prescriptions or patient records.
| Source | What it provides here | Data year |
|---|---|---|
| CMS Medicare Part D Prescribers by Provider and Drug | Each medication, prescriptions, patients, 30-day fills, days of medication and cost. State comparisons average the Pennsylvania prescribers of the same medication and form, where at least five wrote it. | 2024 (released 2026, the most recent available) |
| CMS Medicare Part D Drug Spending Dashboard | What each medication is used for. | 2024 |
- Only prescriptions filled by people with Medicare Part D drug coverage are counted. Private insurance, Medicaid and cash purchases are not.
- CMS leaves out medications with fewer than 11 prescriptions and hides patient counts under 11.
- Cost per fill is what the plan and the patient paid the pharmacy together, not what you pay at the counter.
- Medication descriptions are summaries from CMS. They are not medical advice; ask a health care professional about any medication.
