Journalism in the Public Interest


Prescriber Checkup

Prescriber Checkup » DILTIAZEM 24HR ER


Diltiazem is used to treat high blood pressure and to control angina (chest pain). Diltiazem is in a class of medications called calcium-channel blockers. It works by relaxing the blood vessels so the heart does not have to pump as hard. It also increases the supply of blood and oxygen to the heart. More info »


Medicare Part D Claims
Retail Cost

Cost by state

State Claims Cost
Pennsylvania 177,834 $8.06M
New York 132,397 $6.91M
California 90,541 $4.27M
Ohio 89,770 $5.21M
North Carolina 71,088 $3.11M
Massachusetts 67,701 $3.09M
Georgia 56,639 $2.39M
Florida 50,386 $2.35M
New Jersey 48,269 $2.71M
Illinois 46,806 $2.23M
Michigan 45,351 $2.58M
Virginia 44,857 $2.09M
Indiana 41,941 $2.02M
Tennessee 40,491 $1.76M
South Carolina 35,912 $1.56M
Texas 29,480 $1.69M
Kentucky 29,458 $1.35M
Louisiana 27,442 $1.06M
Alabama 26,888 $1.17M
Connecticut 24,321 $1.2M
Missouri 22,637 $1.16M
Rhode Island 20,719 $841K
West Virginia 19,240 $863K
Maryland 18,374 $1.13M
Puerto Rico 17,703 $543K
Washington 15,288 $809K
Mississippi 12,617 $492K
Wisconsin 11,529 $579K
Iowa 8,461 $341K
Oregon 8,210 $417K
New Hampshire 8,057 $408K
Kansas 7,969 $402K
Arizona 7,268 $458K
Minnesota 7,267 $380K
Oklahoma 6,976 $377K
Maine 6,333 $391K
Arkansas 5,541 $261K
Vermont 5,269 $259K
North Dakota 5,045 $200K
Nebraska 4,653 $204K
Delaware 4,280 $303K
Colorado 3,531 $222K
Nevada 3,521 $175K
District of Columbia 3,230 $155K
Hawaii 3,065 $142K
Utah 2,787 $161K
Idaho 2,662 $138K
New Mexico 2,276 $168K
Montana 2,196 $98.7K
South Dakota 1,707 $70.6K
Alaska 530 $31.6K
Wyoming 401 $25.9K
About This Data

ProPublica obtained prescribing data from Medicare’s prescription drug benefit, known as Part D, under the Freedom of Information Act. The data for 2011 includes nearly 1.2 billion prescriptions written by 1.6 million doctors, nurses and other providers. This database lists about 364,000 of those providers who wrote 50 or more prescriptions for at least one drug that year. About three-fourths went to patients 65 and older; the rest were for disabled patients. Methodology »

Incorrect Info?

If you are a provider and you believe your address is incorrect, check the listing you created on the National Provider Identifier registry. If you change your listing, send a note to and we will update your information. If you have other questions about this data, send a note to

Top prescribers for DILTIAZEM 24HR ER

Provider Medicare Claims City State