LIGAYA CASTILLO
Prescription History 1003940503
Nurse Practitioner in Los Angeles, CA
What does Ligaya Castillo prescribe?
In 2024, Ligaya Castillo wrote 1,573 Medicare prescriptions for 58 medications. The most prescribed was Atorvastatin Calcium, with 93 prescriptions for 25 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 Ligaya Castillo prescribes.
Medications 58 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 California prescribers.
What it is used for
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.
Compared with California prescribers
Ligaya Castillo wrote 93 prescriptions for Atorvastatin Calcium, about half as often as the typical California prescriber of it (202). Medicare paid $34.07 per fill, versus $10.47 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 California prescribers
Ligaya Castillo wrote 87 prescriptions for Quetiapine Fumarate, about 1.6 times as often as the typical California prescriber of it (55). Medicare paid $26.69 per fill, versus $19.69 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
Lisinopril is used to treat high blood pressure.
Compared with California prescribers
Ligaya Castillo wrote 80 prescriptions for Lisinopril, about 82% as often as the typical California prescriber of it (98). Medicare paid $15.20 per fill, versus $8.30 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
Apixaban is used to prevent serious blood clots from forming due to a certain irregular heartbeat (atrial fibrillation) or after hip/knee replacement surgery.
Compared with California prescribers
Ligaya Castillo wrote 67 prescriptions for Eliquis, about as often as the typical California prescriber of it (73). Medicare paid $570.39 per fill, versus $923.33 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
Amlodipine is used with or without other medications to treat high blood pressure.
Compared with California prescribers
Ligaya Castillo wrote 62 prescriptions for Amlodipine Besylate, about half as often as the typical California prescriber of it (141). Medicare paid $17.58 per fill, versus $7.08 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 California prescribers
Ligaya Castillo wrote 53 prescriptions for Gabapentin, about 66% as often as the typical California prescriber of it (80). Medicare paid $17.40 per fill, versus $15.63 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 California prescribers
Ligaya Castillo wrote 46 prescriptions for Escitalopram Oxalate, about as often as the typical California prescriber of it (48). Medicare paid $23.24 per fill, versus $11.14 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
Furosemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with California prescribers
Ligaya Castillo wrote 44 prescriptions for Furosemide, about 68% as often as the typical California prescriber of it (64). Medicare paid $4.82 per fill, versus $6.39 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
Losartan is used to treat high blood pressure (hypertension) and to help protect the kidneys from damage due to diabetes.
Compared with California prescribers
Ligaya Castillo wrote 44 prescriptions for Losartan Potassium, about 36% as often as the typical California prescriber of it (121). Medicare paid $21.38 per fill, versus $10.35 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
Tamsulosin is used by men to treat the symptoms of an enlarged prostate (benign prostatic hyperplasia-BPH).
Compared with California prescribers
Ligaya Castillo wrote 42 prescriptions for Tamsulosin Hcl, about half as often as the typical California prescriber of it (84). Medicare paid $22.96 per fill, versus $15.02 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 depression.
Compared with California prescribers
Ligaya Castillo wrote 42 prescriptions for Trazodone Hcl, about 74% as often as the typical California prescriber of it (57). Medicare paid $11.10 per fill, versus $9.93 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
Pantoprazole is used to treat certain stomach and esophagus problems (such as acid reflux).
Compared with California prescribers
Ligaya Castillo wrote 41 prescriptions for Pantoprazole Sodium, about 63% as often as the typical California prescriber of it (65). Medicare paid $34.02 per fill, versus $13.87 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 high blood pressure.
Compared with California prescribers
Ligaya Castillo wrote 40 prescriptions for Hydrochlorothiazide, about 65% as often as the typical California prescriber of it (62). Medicare paid $7.97 per fill, versus $5.71 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 California prescribers
Ligaya Castillo wrote 39 prescriptions for Donepezil Hcl, about 67% as often as the typical California prescriber of it (58). Medicare paid $60.40 per fill, versus $12.53 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
Metoprolol is used with or without other medications to treat high blood pressure (hypertension).
Compared with California prescribers
Ligaya Castillo wrote 37 prescriptions for Metoprolol Tartrate, about 65% as often as the typical California prescriber of it (57). Medicare paid $14.48 per fill, versus $7.82 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 a beta-blocker used to treat chest pain (angina), heart failure, and high blood pressure.
Compared with California prescribers
Ligaya Castillo wrote 36 prescriptions for Metoprolol Succinate, about 42% as often as the typical California prescriber of it (86). Medicare paid $17.15 per fill, versus $14.23 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with California prescribers
Ligaya Castillo wrote 34 prescriptions for Metformin Hcl, about 34% as often as the typical California prescriber of it (100). Medicare paid $20.63 per fill, versus $9.26 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
Metformin is used with a proper diet and exercise program and possibly with other medications to control high blood sugar.
Compared with California prescribers
Ligaya Castillo wrote 33 prescriptions for Metformin Hcl Er, about 60% as often as the typical California prescriber of it (55). Medicare paid $13.02 per fill, versus $9.99 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 a mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with California prescribers
Ligaya Castillo wrote 29 prescriptions for Potassium Chloride, about 61% as often as the typical California prescriber of it (48). Medicare paid $11.50 per fill, versus $24.00 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
Levothyroxine is used to treat an underactive thyroid (hypothyroidism).
Compared with California prescribers
Ligaya Castillo wrote 26 prescriptions for Levothyroxine Sodium, about 21% as often as the typical California prescriber of it (125). Medicare paid $10.50 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
Memantine is used to treat moderate to severe confusion (dementia) related to Alzheimer's disease.
Compared with California prescribers
Ligaya Castillo wrote 26 prescriptions for Memantine Hcl, about half as often as the typical California prescriber of it (56). Medicare paid $118.02 per fill, versus $29.89 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
Omeprazole is used to treat certain stomach and esophagus problems (such as acid reflux, ulcers).
Compared with California prescribers
Ligaya Castillo wrote 26 prescriptions for Omeprazole, about 33% as often as the typical California prescriber of it (78). Medicare paid $43.53 per fill, versus $11.26 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 schizophrenia, bipolar disorder, irritability associated with autistic disorder).
Compared with California prescribers
Ligaya Castillo wrote 26 prescriptions for Risperidone, about half as often as the typical California prescriber of it (49). Medicare paid $24.77 per fill, versus $13.84 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
This combination medication is used to relieve moderate to severe pain.
Compared with California prescribers
Ligaya Castillo wrote 25 prescriptions for Hydrocodone-Acetaminophen, about 33% as often as the typical California prescriber of it (76). Medicare paid $15.23 per fill, versus $21.39 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
Carvedilol is used to treat high blood pressure and heart failure.
Compared with California prescribers
Ligaya Castillo wrote 24 prescriptions for Carvedilol, about half as often as the typical California prescriber of it (56). Medicare paid $25.29 per fill, versus $8.98 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 seizure disorders, certain psychiatric conditions (manic phase of bipolar disorder), and to prevent migraine headaches.
Compared with California prescribers
Ligaya Castillo wrote 22 prescriptions for Divalproex Sodium, about half as often as the typical California prescriber of it (48). Medicare paid $28.44 per fill, versus $38.94 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
Finasteride is used to shrink an enlarged prostate (benign prostatic hyperplasia or BPH) in adult men.
Compared with California prescribers
Ligaya Castillo wrote 21 prescriptions for Finasteride, about 38% as often as the typical California prescriber of it (56). Medicare paid $33.90 per fill, versus $13.71 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 California prescribers
Ligaya Castillo wrote 19 prescriptions for Sertraline Hcl, about 41% as often as the typical California prescriber of it (46). Medicare paid $29.79 per fill, versus $9.59 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
Digoxin is used to treat heart failure, usually along with other medications.
Compared with California prescribers
Ligaya Castillo wrote 18 prescriptions for Digoxin, about 61% as often as the typical California prescriber of it (29). Medicare paid $16.84 per fill, versus $22.84 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
Nifedipine is used alone or in combination with other drugs to treat high blood pressure (hypertension).
Compared with California prescribers
Ligaya Castillo wrote 18 prescriptions for Nifedipine Er, about half as often as the typical California prescriber of it (32). Medicare paid $24.75 per fill, versus $28.64 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 anxiety.
Compared with California prescribers
Ligaya Castillo wrote 17 prescriptions for Lorazepam, about 39% as often as the typical California prescriber of it (43). Medicare paid $7.78 per fill, versus $6.52 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
Simvastatin 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.
Compared with California prescribers
Ligaya Castillo wrote 17 prescriptions for Simvastatin, about 27% as often as the typical California prescriber of it (63). Medicare paid $44.01 per fill, versus $9.03 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 symptoms of Parkinson's disease or Parkinson-like symptoms (such as shakiness, stiffness, difficulty moving).
Compared with California prescribers
Ligaya Castillo wrote 15 prescriptions for Carbidopa-Levodopa, about 22% as often as the typical California prescriber of it (68). Medicare paid $46.26 per fill, versus $38.14 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 California prescribers
Ligaya Castillo wrote 15 prescriptions for Duloxetine Hcl, about 37% as often as the typical California prescriber of it (40). Medicare paid $113.65 per fill, versus $24.72 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 California prescribers
Ligaya Castillo wrote 15 prescriptions for Hydroxyzine Hcl, about half as often as the typical California prescriber of it (28). Medicare paid $32.57 per fill, versus $13.85 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
Insulin glargine is used with a proper diet and exercise program to control high blood sugar in people with diabetes.
Compared with California prescribers
Ligaya Castillo wrote 15 prescriptions for Lantus Solostar, about 41% as often as the typical California prescriber of it (36). Medicare paid $72.65 per fill, versus $110.37 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
Levetiracetam is used to treat seizures (epilepsy).
Compared with California prescribers
Ligaya Castillo wrote 15 prescriptions for Levetiracetam, about 32% as often as the typical California prescriber of it (47). Medicare paid $111.11 per fill, versus $37.33 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 depression.
Compared with California prescribers
Ligaya Castillo wrote 15 prescriptions for Mirtazapine, about 37% as often as the typical California prescriber of it (40). Medicare paid $39.02 per fill, versus $19.05 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 an antibiotic used to treat bladder infections (acute cystitis).
Compared with California prescribers
Ligaya Castillo wrote 15 prescriptions for Nitrofurantoin Mono-Macro, about half as often as the typical California prescriber of it (26). Medicare paid $30.29 per fill, versus $13.21 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 Parkinson's disease.
Compared with California prescribers
Ligaya Castillo wrote 15 prescriptions for Ropinirole Hcl, about half as often as the typical California prescriber of it (27). Medicare paid $10.84 per fill, versus $15.64 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
Icosapent ethyl is used along with certain other cholesterol medications ("statins" such as atorvastatin, simvastatin) to reduce the risk of heart attack, stroke, and certain types of heart problems that require treatment in a hospital.
Compared with California prescribers
Ligaya Castillo wrote 14 prescriptions for Icosapent Ethyl, about 23% as often as the typical California prescriber of it (61). Medicare paid $113.89 per fill, versus $209.56 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
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.
Compared with California prescribers
Ligaya Castillo wrote 14 prescriptions for Rosuvastatin Calcium, about 14% as often as the typical California prescriber of it (101). Medicare paid $9.35 per fill, versus $15.64 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
Torsemide is used to reduce extra fluid in the body (edema) caused by conditions such as heart failure, liver disease, and kidney disease.
Compared with California prescribers
Ligaya Castillo wrote 14 prescriptions for Torsemide, about half as often as the typical California prescriber of it (30). Medicare paid $5.53 per fill, versus $18.74 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
Alprazolam is used to treat anxiety and panic disorders.
Compared with California prescribers
Ligaya Castillo wrote 13 prescriptions for Alprazolam, about 26% as often as the typical California prescriber of it (50). Medicare paid $15.50 per fill, versus $5.37 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
Latanoprost is used to treat high pressure inside the eye due to glaucoma (open angle type) or other eye diseases (such as ocular hypertension).
Compared with California prescribers
Ligaya Castillo wrote 13 prescriptions for Latanoprost, about 8% as often as the typical California prescriber of it (159). Medicare paid $31.98 per fill, versus $12.02 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
Albuterol (also known as salbutamol) is used to prevent and treat wheezing and shortness of breath caused by breathing problems (such as asthma, chronic obstructive pulmonary disease).
Compared with California prescribers
Ligaya Castillo wrote 12 prescriptions for Albuterol Sulfate Hfa, about 21% as often as the typical California prescriber of it (58). Medicare paid $44.93 per fill, versus $28.70 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
Enalapril is used to treat high blood pressure.
Compared with California prescribers
Ligaya Castillo wrote 12 prescriptions for Enalapril Maleate, about half as often as the typical California prescriber of it (25). Medicare paid $58.82 per fill, versus $16.17 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
Levocetirizine is an antihistamine used to relieve allergy symptoms such as watery eyes, runny nose, itching eyes/nose, and sneezing.
Compared with California prescribers
Ligaya Castillo wrote 12 prescriptions for Levocetirizine Dihydrochloride, about 22% as often as the typical California prescriber of it (54). Medicare paid $36.81 per fill, versus $10.77 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
Montelukast is used to control and prevent symptoms caused by asthma (such as wheezing and shortness of breath).
Compared with California prescribers
Ligaya Castillo wrote 12 prescriptions for Montelukast Sodium, about 25% as often as the typical California prescriber of it (49). Medicare paid $59.92 per fill, versus $10.71 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
Pravastatin 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.
Compared with California prescribers
Ligaya Castillo wrote 12 prescriptions for Pravastatin Sodium, about 32% as often as the typical California prescriber of it (38). Medicare paid $38.52 per fill, versus $13.25 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
Prednisone is used to treat conditions such as arthritis, blood disorders, breathing problems, severe allergies, skin diseases, cancer, eye problems, and immune system disorders.
Compared with California prescribers
Ligaya Castillo wrote 12 prescriptions for Prednisone, about 30% as often as the typical California prescriber of it (40). Medicare paid $4.37 per fill, versus $5.64 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
Budesonide is used to control and prevent symptoms (wheezing and shortness of breath) caused by asthma.
Compared with California prescribers
Ligaya Castillo wrote 12 prescriptions for Pulmicort Flexhaler, about 83% as often as the typical California prescriber of it (14). Medicare paid $279.14 per fill, versus $301.93 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 California prescribers
Ligaya Castillo wrote 12 prescriptions for Tramadol Hcl, about 27% as often as the typical California prescriber of it (44). Medicare paid $63.51 per fill, versus $6.24 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
Dorzolamide is used to treat high pressure inside the eye due to glaucoma (open angle-type) or other eye diseases (such as ocular hypertension).
Compared with California prescribers
Ligaya Castillo wrote 11 prescriptions for Dorzolamide Hcl, about 22% as often as the typical California prescriber of it (51). Medicare paid $22.91 per fill, versus $20.46 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
Hydralazine is used with or without other medications to treat high blood pressure.
Compared with California prescribers
Ligaya Castillo wrote 11 prescriptions for Hydralazine Hcl, about 25% as often as the typical California prescriber of it (43). Medicare paid $36.82 per fill, versus $14.35 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 mineral supplement used to treat or prevent low amounts of potassium in the blood.
Compared with California prescribers
Ligaya Castillo wrote 11 prescriptions for Klor-Con M20, about 67% as often as the typical California prescriber of it (16). Medicare paid $9.10 per fill, versus $16.38 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
Pioglitazone is a diabetes drug (thiazolidinedione-type, also called "glitazones") used along with a proper diet and exercise program to control high blood sugar in patients with type 2 diabetes.
Compared with California prescribers
Ligaya Castillo wrote 11 prescriptions for Pioglitazone Hcl, about 27% as often as the typical California prescriber of it (41). Medicare paid $104.91 per fill, versus $13.99 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
Semaglutide is used with a proper diet and exercise program to control high blood sugar in people with type 2 diabetes.
Compared with California prescribers
Ligaya Castillo wrote 11 prescriptions for Rybelsus, about 35% as often as the typical California prescriber of it (32). Medicare paid $997.14 per fill, versus $1,419.22 statewide.
Volume reflects how many Medicare patients a practice sees as well as prescribing habits. It is not a measure of quality.
Questions about Ligaya Castillo’s prescriptions
What does Ligaya Castillo prescribe most?
In 2024 Medicare Part D data, Ligaya Castillo's most prescribed medications were Atorvastatin Calcium (93), Quetiapine Fumarate (87) and Lisinopril (80).
How does Ligaya Castillo's prescribing compare with other California prescribers?
Of the 58 medications with a state comparison, Ligaya Castillo prescribes 1 more often than the typical California prescriber, 4 about as often and 53 less often. Volume reflects practice size as well as prescribing habits.
Does this list show every medication Ligaya Castillo 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 California 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.
