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Megan A Callahan
Neurologist
Overview Referral Sources Referral Destinations Practice Locations 1 Prescriptions Procedures Same Address Same Phone Medical Groups 1 Affl. Hospitals 1

Prescriptions made by Megan A Callahan

Data for 2018

3,075

Medicare Part D Prescriptions Filled, Including Refills

Rank: 42 out of 617 providers in this state and specialty

$868.3K

Total Retail Price of All Prescriptions

Rank: 78 out of 617 providers in this state and specialty

350

Patients Receiving at Least One Drug in Part D

Rank: 45 out of 617 providers in this state and specialty

72%

Patients 65 Years and Older

69

Average Age of Patients

Average age of patients for providers in this state and specialty is 66

Drug Categories

O

Opioid

An opioid drug. Prescription opioids (painkillers) can help alleviate certain kinds of pain in the short term but carry serious health risks.
A

Antibiotic

Used to treat bacterial infections but are often prescribed incorrectly to treat viral infections, such as chest colds or the flu.
P

Antipsychotic

Used to manage psychosis, principally in schizophrenia but also in a range of other psychotic disorders.

Prescription Data

The table below list this provider’s drugs, the number of prescriptions and how many went to seniors. Drugs are ranked by volume. Rank in State ranks all providers that have the self-identified specialty of Neurology in Massachusetts and ranks the number of prescriptions that have been made for the specific drug.

Drug Name Rank in State Total Prescriptions Filled with Refills Prescript. to 65+ Patients Receiving this Drug Patients 65+ OAP
1 GABAPENTIN290
of 4010
2950 prescriptions
Less than 1% of all prescriptions
2140730 patients
21% of all patients		570 patients
16% of all patients
2 MEMANTINE HCL210
of 2450
1680 prescriptions
Less than 1% of all prescriptions
1680290 patients
8% of all patients		290 patients
8% of all patients
3 DONEPEZIL HCL850
of 3080
1180 prescriptions
Less than 1% of all prescriptions
1180310 patients
9% of all patients		310 patients
9% of all patients
4 ZONISAMIDE80
of 1550
1270 prescriptions
Less than 1% of all prescriptions
720170 patients
5% of all patients		< 11
5 DULOXETINE HCL70
of 1550
1160 prescriptions
Less than 1% of all prescriptions
770260 patients
7% of all patients		< 11
6 ESCITALOPRAM OXALATE60
of 830
1000 prescriptions
Less than 1% of all prescriptions
890250 patients
7% of all patients		< 11
7 LEVETIRACETAM680
of 3470
1260 prescriptions
Less than 1% of all prescriptions
690190 patients
5% of all patients		< 11
8 LEVETIRACETAM ER
(LEVETIRACETAM)		30
of 650
1090 prescriptions
Less than 1% of all prescriptions
730200 patients
6% of all patients		< 11
9 TOPIRAMATE510
of 2950
970 prescriptions
Less than 1% of all prescriptions
190150 patients
4% of all patients		< 11O
10 CARBIDOPA-LEVODOPA
(CARBIDOPA/LEVODOPA)		1080
of 2640
670 prescriptions
Less than 1% of all prescriptions
560150 patients
4% of all patients		< 11
11 LAMOTRIGINE460
of 2550
950 prescriptions
Less than 1% of all prescriptions
370160 patients
5% of all patients		< 11
12 VENLAFAXINE HCL ER
(VENLAFAXINE HCL)		20
of 610
810 prescriptions
Less than 1% of all prescriptions
620120 patients
3% of all patients		< 11
13 RIVASTIGMINE60
of 1030
780 prescriptions
Less than 1% of all prescriptions
780170 patients
5% of all patients		170 patients
5% of all patients
14 PRIMIDONE330
of 1740
600 prescriptions
Less than 1% of all prescriptions
440130 patients
4% of all patients		< 11
15 CITALOPRAM HBR
(CITALOPRAM HYDROBROMIDE)		240
of 1360
540 prescriptions
Less than 1% of all prescriptions
120 patients
3% of all patients		< 11
16 SUMATRIPTAN SUCCINATE190
of 1590
900 prescriptions
Less than 1% of all prescriptions
400150 patients
4% of all patients		< 11
17 TRAZODONE HCL150
of 1490
640 prescriptions
Less than 1% of all prescriptions
160 patients
5% of all patients		< 11
18 MEMANTINE HCL ER
(MEMANTINE HCL)		370
of 950
400 prescriptions
Less than 1% of all prescriptions
400150 patients
4% of all patients		150 patients
4% of all patients
19 DIVALPROEX SODIUM ER
(DIVALPROEX SODIUM)		310
of 1480
440 prescriptions
Less than 1% of all prescriptions
140< 11< 11
20 CARBAMAZEPINE ER
(CARBAMAZEPINE)		280
of 1420
520 prescriptions
Less than 1% of all prescriptions
280< 11< 11
21 LYRICA
(PREGABALIN)		250
of 1850
570 prescriptions
Less than 1% of all prescriptions
420< 11< 11
22 NORTRIPTYLINE HCL220
of 1600
480 prescriptions
Less than 1% of all prescriptions
240< 11< 11
23 SERTRALINE HCL450
of 1590
350 prescriptions
Less than 1% of all prescriptions
< 11< 11
24 DIVALPROEX SODIUM330
of 1760
500 prescriptions
Less than 1% of all prescriptions
390< 11< 11
25 PHENOBARBITAL370
of 1290
380 prescriptions
Less than 1% of all prescriptions
00< 1100 patients
Less than 1% of all patients
26 CARBAMAZEPINE250
of 1390
440 prescriptions
Less than 1% of all prescriptions
< 11< 11
27 PHENYTOIN SODIUM EXTENDED370
of 1380
360 prescriptions
Less than 1% of all prescriptions
230< 11< 11
28 MIRTAZAPINE230
of 800
290 prescriptions
Less than 1% of all prescriptions
< 11< 11
29 BACLOFEN650
of 1770
260 prescriptions
Less than 1% of all prescriptions
< 11< 11
30 TRAMADOL HCL170
of 700
420 prescriptions
Less than 1% of all prescriptions
< 11< 11O
31 VIMPAT
(LACOSAMIDE)		430
of 1360
320 prescriptions
Less than 1% of all prescriptions
160< 11< 11
32 AMANTADINE
(AMANTADINE HCL)		460
of 1170
230 prescriptions
Less than 1% of all prescriptions
230< 11< 11
33 AMITRIPTYLINE HCL690
of 1830
140 prescriptions
Less than 1% of all prescriptions
< 11< 11
34 RASAGILINE MESYLATE450
of 940
260 prescriptions
Less than 1% of all prescriptions
130< 11< 11
35 OXCARBAZEPINE540
of 1710
230 prescriptions
Less than 1% of all prescriptions
00< 1100 patients
Less than 1% of all patients
36 COPAXONE
(GLATIRAMER ACETATE)		360
of 990
290 prescriptions
Less than 1% of all prescriptions
< 11< 11
37 APTIOM
(ESLICARBAZEPINE ACETATE)		50
of 150
250 prescriptions
Less than 1% of all prescriptions
250< 11< 11
38 MODAFINIL280
of 660
210 prescriptions
Less than 1% of all prescriptions
< 11< 11
39 PROPRANOLOL HCL480
of 1420
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
40 EXELON
(RIVASTIGMINE)		40
of 220
220 prescriptions
Less than 1% of all prescriptions
220< 11< 11
41 ROPINIROLE ER
(ROPINIROLE HCL)		230
of 460
160 prescriptions
Less than 1% of all prescriptions
160< 11< 11
42 CYCLOBENZAPRINE HCL240
of 790
230 prescriptions
Less than 1% of all prescriptions
< 11< 11
43 NAPROXEN120
of 220
110 prescriptions
Less than 1% of all prescriptions
< 11< 11
44 NAMENDA XR
(MEMANTINE HCL)		210
of 520
150 prescriptions
Less than 1% of all prescriptions
150< 11< 11
45 TECFIDERA
(DIMETHYL FUMARATE)		320
of 630
180 prescriptions
Less than 1% of all prescriptions
00< 1100 patients
Less than 1% of all patients
46 PHENYTOIN190
of 460
150 prescriptions
Less than 1% of all prescriptions
< 11< 11
47 TIZANIDINE HCL490
of 1150
120 prescriptions
Less than 1% of all prescriptions
00< 1100 patients
Less than 1% of all patients
48 VALPROIC ACID
(VALPROIC ACID (AS SODIUM SALT))		190
of 350
110 prescriptions
Less than 1% of all prescriptions
< 11< 11
49 VERAPAMIL ER PM
(VERAPAMIL HCL)		30
of 40
120 prescriptions
Less than 1% of all prescriptions
00< 1100 patients
Less than 1% of all patients
50 DEPAKOTE
(DIVALPROEX SODIUM)		120
of 210
130 prescriptions
Less than 1% of all prescriptions
00< 1100 patients
Less than 1% of all patients
51 DILANTIN
(PHENYTOIN SODIUM EXTENDED)		470
of 940
130 prescriptions
Less than 1% of all prescriptions
00< 1100 patients
Less than 1% of all patients
52 ZOLMITRIPTAN ODT
(ZOLMITRIPTAN)		30
of 40
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
53 ZOLPIDEM TARTRATE270
of 410
120 prescriptions
Less than 1% of all prescriptions
120< 11< 11
54 FENTANYL70
of 110
110 prescriptions
Less than 1% of all prescriptions
< 11< 11O
55 FYCOMPA
(PERAMPANEL)		70
of 100
110 prescriptions
Less than 1% of all prescriptions
< 11< 11
56 ONFI
(CLOBAZAM)		370
of 570
110 prescriptions
Less than 1% of all prescriptions
00< 1100 patients
Less than 1% of all patients
57 TOPAMAX
(TOPIRAMATE)		120
of 210
110 prescriptions
Less than 1% of all prescriptions
00< 1100 patients
Less than 1% of all patients
58 RIZATRIPTAN
(RIZATRIPTAN BENZOATE)		300
of 660
120 prescriptions
Less than 1% of all prescriptions
< 11< 11

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