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 »

Totals only include the 50 U.S. States and Washington D.C.

Medicare Part D Claims
Retail Cost

Cost by state

State Claims Cost
Pennsylvania 192,626 $8.8M
California 162,838 $7.25M
New York 161,961 $9.06M
Ohio 121,798 $6.93M
Florida 110,046 $5.32M
North Carolina 77,551 $3.62M
Massachusetts 74,276 $3.38M
Michigan 68,969 $3.95M
Georgia 67,745 $2.84M
Illinois 67,357 $3.31M
New Jersey 66,294 $4.12M
Texas 57,267 $3.02M
Indiana 53,066 $2.47M
Virginia 50,725 $2.39M
Tennessee 49,283 $2.14M
Kentucky 41,006 $1.9M
South Carolina 38,209 $1.71M
Missouri 36,655 $1.81M
Louisiana 35,655 $1.39M
Alabama 34,329 $1.43M
Connecticut 30,041 $1.69M
Arizona 24,506 $1.4M
Washington 24,495 $1.32M
Wisconsin 24,259 $1.25M
West Virginia 22,798 $1.01M
Maryland 21,295 $1.41M
Rhode Island 21,136 $844K
Minnesota 19,254 $1.14M
Oregon 18,793 $901K
Kansas 18,024 $761K
Mississippi 15,243 $623K
Iowa 13,227 $542K
Oklahoma 12,606 $618K
Colorado 10,755 $556K
Arkansas 10,072 $417K
Nevada 10,042 $480K
Hawaii 9,967 $492K
New Hampshire 9,176 $498K
Nebraska 8,985 $334K
Maine 8,110 $527K
North Dakota 7,514 $253K
New Mexico 6,413 $412K
Idaho 6,173 $300K
Utah 6,083 $318K
Vermont 5,939 $329K
Montana 4,639 $187K
Delaware 4,384 $356K
South Dakota 3,676 $144K
District of Columbia 3,475 $200K
Wyoming 1,096 $55.5K
Alaska 829 $63.5K
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 2012 includes more than 1.2 billion prescriptions written by nearly 1.5 million doctors, nurses and other providers. This database lists about 382,000 of those providers who wrote 50 or more prescriptions for at least one drug that year. Almost 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