Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

TENNILLE CYBIL BAKER P.A.
Prescription History 1811001290
Physician Assistant - Medical in Bozeman, MT

Active since August 19, 2006PECOS EnrolledAccepts Medicare Assignment
80.8/100
CMS Quality Rating
931 HIGHLAND BLVD STE 3130, BOZEMAN, MT 59715(406) 414-5070 Get Directions

NPPES record last updated: June 22, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jan 23, 2026, Jul 22, 2021, Mar 12, 2020 (3 updates tracked since 2020).

Medicare Part D Prescription History

Explore the verified Medicare Part D prescription history, volume metrics, and calculated drug costs for TENNILLE CYBIL BAKER P.A., an active Medical specialist practicing in Bozeman, MT. Our medical registry currently tracks 6 unique pharmaceutical formulations prescribed by this provider, representing an estimated volume of 88 documented patient claims. Among these therapy options, the most frequently utilized medication is Dexamethasone, which accounts for 17 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.

6
Medications
88
Total Claims
138
30-Day Fills
Dexamethasone
Most Prescribed · 17 claims
View details
6 medications · 2023 Medicare Part D
Medicare Part D medications prescribed by TENNILLE CYBIL BAKER P.A. in 2023, with prescription volumes, average cost per fill, and MT state comparisons
Medication Prescriptions (2023)Rx (2023) Avg Cost per FillCost / Fill Vs. Other MT PrescribersVs. MT Avg

About Dexamethasone: Dexamethasone is used to treat conditions such as arthritis, blood/hormone disorders, allergic reactions, skin diseases, eye problems, breathing problems, bowel disorders, cancer, and immune system disorders. Show more ▾

It is also used as a test for an adrenal gland disorder (Cushing's syndrome). Dexamethasone belongs to a class of drugs known as corticosteroids. It decreases your immune system's response to various diseases to reduce symptoms such as swelling and allergic-type reactions. An anti-inflammatory 9-fluoro-glucocorticoid.

In 2023, this provider wrote 17 Medicare prescriptions for Dexamethasone, about 68% of the volume of the typical Montana prescriber of this medication (25). Medicare paid an average of $20.38 per fill, versus $17.74 statewide.

How often this provider prescribes it

This provider
17
MT average
25.0

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

What Medicare paid per fill

This provider
$20.38
MT average
$17.74

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

29.9
30-Day Fills
standardized to 30-day supplies
811
Days of Medication
total across all patients in 2023

About Prochlorperazine Maleate: This medication is used to treat severe nausea and vomiting from certain causes (for example, after surgery or cancer treatment). Show more ▾

Prochlorperazine belongs to a class of drugs known as phenothiazines. This medication is not recommended for use in children younger than 2 years or in children going through surgery. A phenothiazine antipsychotic used principally in the treatment of NAUSEA; VOMITING; and VERTIGO. It is more likely than CHLORPROMAZINE to cause EXTRAPYRAMIDAL DISORDERS. (From Martindale, The Extra Pharmacopoeia, 30th ed, p612)

In 2023, this provider wrote 17 Medicare prescriptions for Prochlorperazine Maleate, about half the volume of the typical Montana prescriber of this medication (29). Medicare paid an average of $13.03 per fill, versus $18.17 statewide.

How often this provider prescribes it

This provider
17
MT average
29.0

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

What Medicare paid per fill

This provider
$13.03
MT average
$18.17

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

17
30-Day Fills
standardized to 30-day supplies
146
Days of Medication
total across all patients in 2023

About Potassium Chloride: This medication is a mineral supplement used to treat or prevent low amounts of potassium in the blood. Show more ▾

A normal level of potassium in the blood is important. Potassium helps your cells, kidneys, heart, muscles, and nerves work properly. Most people get enough potassium by eating a well-balanced diet. Some conditions that can lower your body's potassium level include severe prolonged diarrhea and vomiting, hormone problems such as hyperaldosteronism, or treatment with water pills/diuretics. A white crystal or crystalline powder used in BUFFERS; FERTILIZERS; and EXPLOSIVES. It can be used to replenish ELECTROLYTES and restore WATER-ELECTROLYTE BALANCE in treating HYPOKALEMIA.

In 2023, this provider wrote 16 Medicare prescriptions for Potassium Chloride, about a quarter of the volume of the typical Montana prescriber of this medication (67). Medicare paid an average of $19.73 per fill, versus $27.88 statewide.

How often this provider prescribes it

This provider
16
MT average
67.0

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

What Medicare paid per fill

This provider
$19.73
MT average
$27.88

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

20
30-Day Fills
standardized to 30-day supplies
501
Days of Medication
total across all patients in 2023

About Acyclovir: Acyclovir is used to treat infections caused by certain types of viruses. Show more ▾

It treats cold sores around the mouth (caused by herpes simplex), shingles (caused by herpes zoster), and chickenpox. This medication is also used to treat outbreaks of genital herpes. In people with frequent outbreaks, acyclovir is used to help reduce the number of future episodes. Acyclovir is an antiviral drug. However, it is not a cure for these infections. The viruses that cause these infections continue to live in the body even between outbreaks. Acyclovir decreases the severity and length of these outbreaks. It helps the sores heal faster, keeps new sores from forming, and decreases pain/itching. This medication may also help reduce how long pain remains after the sores heal. In addition, in people with a weakened immune system, acyclovir can decrease the risk of the virus spreading to other parts of the body and causing serious infections. A GUANOSINE analog that acts as an antimetabolite. Viruses are especially susceptible. Used especially against herpes.

In 2023, this provider wrote 14 Medicare prescriptions for Acyclovir, about 70% of the volume of the typical Montana prescriber of this medication (20). Medicare paid an average of $22.10 per fill, versus $17.61 statewide.

How often this provider prescribes it

This provider
14
MT average
20.0

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

What Medicare paid per fill

This provider
$22.10
MT average
$17.61

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

21
30-Day Fills
standardized to 30-day supplies
559
Days of Medication
total across all patients in 2023

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

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

In 2023, this provider wrote 13 Medicare prescriptions for Gabapentin, about 17% of the volume of the typical Montana prescriber of this medication (77). Medicare paid an average of $10.13 per fill, versus $17.93 statewide.

How often this provider prescribes it

This provider
13
MT average
77.0

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

What Medicare paid per fill

This provider
$10.13
MT average
$17.93

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

17
30-Day Fills
standardized to 30-day supplies
510
Days of Medication
total across all patients in 2023

About Hydroxyurea: This medication is used by people with sickle cell anemia to reduce the number of painful crises caused by the disease and to reduce the need for blood transfusions. Show more ▾

Some brands are also used to treat certain types of cancer (such as chronic myelogenous leukemia, squamous cell carcinomas). An antineoplastic agent that inhibits DNA synthesis through the inhibition of ribonucleoside diphosphate reductase.

In 2023, this provider wrote 11 Medicare prescriptions for Hydroxyurea, about a third of the volume of the typical Montana prescriber of this medication (31). Medicare paid an average of $34.48 per fill, versus $26.46 statewide.

How often this provider prescribes it

This provider
11
MT average
31.0

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

What Medicare paid per fill

This provider
$34.48
MT average
$26.46

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

33.1
30-Day Fills
standardized to 30-day supplies
992
Days of Medication
total across all patients in 2023
No medications match the current filters.
More than typical Typical Less than typical= prescription volume vs the average MT prescriber of the same medication; volume reflects practice size as well as clinical preference.Green cost= below the MT average cost per fill.

About this data. The prescription history for TENNILLE CYBIL BAKER P.A. is compiled from the Centers for Medicare & Medicaid Services (CMS) Medicare Part D Prescriber Public Use File for calendar year 2023, the most recent federal release. Figures cover prescriptions filled for Medicare Part D beneficiaries only; prescriptions under private insurance, Medicaid, or self-pay plans are not included. Because prescribing decisions are generally consistent across coverage types, this record offers a useful view of the overall Medical prescribing approach at this Bozeman, MT practice.

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