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Treatment Tracker

PATHOLOGY AND LABORATORY

Magnesium level

Service Code: 83735

Total Paid

$21,451,224

Total Times Performed (or Units)

2,398,927

Rank Among All Services

138

Includes both office and facility visits.

Top States

Below are the top states in which this service was billed. Click a state for top providers there.


Times Performed State
301,502 California
213,612 New Jersey
208,516 Florida
186,679 Texas
139,448 North Carolina
139,271 New York
105,483 Illinois
90,180 Michigan
87,681 Pennsylvania
86,762 Ohio
83,514 Tennessee
76,972 Alabama
63,799 Arizona
63,356 Georgia
48,011 Kansas
44,346 Missouri
40,773 South Carolina
33,930 Maryland
32,102 Massachusetts
31,312 Indiana
26,928 Washington
25,521 Virginia
24,631 Wisconsin
23,562 Oklahoma
22,208 Arkansas
21,160 Connecticut
17,406 Kentucky
17,256 Louisiana
17,088 Colorado
16,098 Nevada
13,317 Nebraska
12,457 Oregon
12,099 West Virginia
11,761 Mississippi
11,027 Minnesota
8,057 Iowa
7,278 New Mexico
7,243 Hawaii
5,580 South Dakota
4,154 Rhode Island
3,498 Maine
2,920 Utah
2,688 North Dakota
2,621 Idaho
1,327 Montana
846 Washington, DC
803 Wyoming
463 Puerto Rico
419 Guam
382 Vermont
277 Virgin Islands
216 New Hampshire
214 Alaska
173 Delaware

Top Providers

Below are the top 30 providers who performed this service most often. A provider’s name may appear twice on this list if he/she performs this service in both an office setting and in a facility. Medicare reimburses differently based on place of service and breaks the data out accordingly. Sorting is limited to the top 30 overall providers.


Provider Name Times Performed (or Units) % of Patients Unique Visits Per Patient
LABORATORY CORPORATION OF AMERICA HOLDINGS

Burlington, N.C. 27215

Clinical Laboratory

4%

of this provider's 1,306,778 patients got this service
76,381

Performed in an office

4%

of this provider's 1,306,778 patients got this service
1.5
QUEST DIAGNOSTICS INCORPORATED

TETERBORO, N.J. 07608

Clinical Laboratory

6%

of this provider's 525,451 patients got this service
53,106

Performed in an office

6%

of this provider's 525,451 patients got this service
1.8
LABORATORY CORPORATION OF AMERICA HOLDINGS

Raritan, N.J. 08869

Clinical Laboratory

5%

of this provider's 696,585 patients got this service
51,249

Performed in an office

5%

of this provider's 696,585 patients got this service
1.6
LABORATORY CORPORATION OF AMERICA HOLDINGS

Birmingham, Ala. 35233

Clinical Laboratory

4%

of this provider's 669,554 patients got this service
40,134

Performed in an office

4%

of this provider's 669,554 patients got this service
1.5
SOLSTAS LAB PARTNERS GROUP, LLC

Greensboro, N.C. 27410

Clinical Laboratory

4%

of this provider's 596,770 patients got this service
37,004

Performed in an office

4%

of this provider's 596,770 patients got this service
1.5
LABORATORY CORPORATION OF AMERICA HOLDINGS

Dublin, Ohio 43016

Clinical Laboratory

4%

of this provider's 604,319 patients got this service
35,001

Performed in an office

4%

of this provider's 604,319 patients got this service
1.5
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

TAMPA, Fla. 33617

Clinical Laboratory

3%

of this provider's 627,606 patients got this service
34,365

Performed in an office

3%

of this provider's 627,606 patients got this service
1.7
UNILAB CORPORATION

WEST HILLS, Calif. 91304

Clinical Laboratory

5%

of this provider's 416,737 patients got this service
34,025

Performed in an office

5%

of this provider's 416,737 patients got this service
1.6
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

Tucker, Ga. 30084

Clinical Laboratory

4%

of this provider's 557,363 patients got this service
27,452

Performed in an office

4%

of this provider's 557,363 patients got this service
1.4
LITHOLINK CORPORATION

Chicago, Ill. 60612

Clinical Laboratory

100%

of this provider's 19,332 patients got this service
27,269

Performed in an office

100%

of this provider's 19,332 patients got this service
1.3
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

Horsham, Pa. 19044

Clinical Laboratory

5%

of this provider's 377,772 patients got this service
27,146

Performed in an office

5%

of this provider's 377,772 patients got this service
1.6
LABORATORY CORPORATION OF AMERICA

San Diego, Calif. 92128

Clinical Laboratory

4%

of this provider's 372,538 patients got this service
26,723

Performed in an office

4%

of this provider's 372,538 patients got this service
1.7
SONORA QUEST LABORATORIES, LLC.

Tempe, Ariz. 85281

Clinical Laboratory

5%

of this provider's 279,312 patients got this service
26,337

Performed in an office

5%

of this provider's 279,312 patients got this service
1.9
LABONE INC

LENEXA, Kan. 66219

Clinical Laboratory

4%

of this provider's 353,206 patients got this service
24,777

Performed in an office

4%

of this provider's 353,206 patients got this service
1.7
BIO-REFERENCE LABORATORIES, INC.

Elmwood Park, N.J. 07407

Clinical Laboratory

4%

of this provider's 326,629 patients got this service
23,233

Performed in an office

4%

of this provider's 326,629 patients got this service
2
UNILAB CORPORATION

SACRAMENTO, Calif. 95834

Clinical Laboratory

4%

of this provider's 288,243 patients got this service
23,051

Performed in an office

4%

of this provider's 288,243 patients got this service
2
VPA PC

Troy, Mich. 48084

Clinical Laboratory

33%

of this provider's 37,895 patients got this service
22,859

Performed in an office

33%

of this provider's 37,895 patients got this service
1.8
BIODIAGNOSTIC LABORATORY SERVICES,LLC.

Parsippany, N.J. 07054

Clinical Laboratory

83%

of this provider's 16,095 patients got this service
21,475

Performed in an office

83%

of this provider's 16,095 patients got this service
1.6
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

IRVING, Tex. 75063

Clinical Laboratory

3%

of this provider's 390,265 patients got this service
21,325

Performed in an office

3%

of this provider's 390,265 patients got this service
1.6
LABORATORY CORPORATION OF AMERICA

TAMPA, Fla. 33607

Clinical Laboratory

3%

of this provider's 444,355 patients got this service
20,756

Performed in an office

3%

of this provider's 444,355 patients got this service
1.6
QUEST DIAGNOSTICS INCORPORATED MI

Auburn Hills, Mich. 48326

Clinical Laboratory

6%

of this provider's 231,681 patients got this service
20,727

Performed in an office

6%

of this provider's 231,681 patients got this service
1.5
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

Houston, Tex. 77072

Clinical Laboratory

5%

of this provider's 247,005 patients got this service
19,803

Performed in an office

5%

of this provider's 247,005 patients got this service
1.6
CLINICAL PATHOLOGY LABORATORIES, INC.

Austin, Tex. 78754

Clinical Laboratory

3%

of this provider's 459,687 patients got this service
18,998

Performed in an office

3%

of this provider's 459,687 patients got this service
1.4
QUEST DIAGNOSTICS INCORPORATED MD

Baltimore, Md. 21227

Clinical Laboratory

4%

of this provider's 289,568 patients got this service
18,545

Performed in an office

4%

of this provider's 289,568 patients got this service
1.7
MEMPHIS PATHOLOGY LABORATORY

Memphis, Tenn. 38134

Clinical Laboratory

6%

of this provider's 200,728 patients got this service
18,531

Performed in an office

6%

of this provider's 200,728 patients got this service
1.7
LABORATORY CORPORATION OF AMERICA

Dallas, Tex. 75230

Clinical Laboratory

4%

of this provider's 337,196 patients got this service
18,222

Performed in an office

4%

of this provider's 337,196 patients got this service
1.4
LABORATORY CORPORATION OF AMERICA

Houston, Tex. 77040

Clinical Laboratory

4%

of this provider's 281,374 patients got this service
17,248

Performed in an office

4%

of this provider's 281,374 patients got this service
1.7
LABORATORY CORPORTION OF AMERICA

Phoenix, Ariz. 85040

Clinical Laboratory

4%

of this provider's 232,979 patients got this service
15,105

Performed in an office

4%

of this provider's 232,979 patients got this service
1.6
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

MIRAMAR, Fla. 33025

Clinical Laboratory

4%

of this provider's 228,036 patients got this service
14,536

Performed in an office

4%

of this provider's 228,036 patients got this service
1.5
SHIEL MEDICAL LABORATORY, INC

Brooklyn, N.Y. 11205

Clinical Laboratory

5%

of this provider's 141,534 patients got this service
14,060

Performed in an office

5%

of this provider's 141,534 patients got this service
1.9

Sources: Centers for Medicare and Medicaid Services, National Plan and Provider Enumeration System, American Medical Association

Services that begin with a letter come from CMS. All other codes and descriptions of the medical procedures are from the Current Procedural Terminology (CPT®) code set, copyright 2013 American Medical Association. All rights reserved. Where practical, AMA’s consumer friendly translation of the CPT descriptor was used. ProPublica has received permission from the AMA to use these codes on this site.