Treatment Tracker

The Doctors and Services in Medicare Part B

PATHOLOGY AND LABORATORY

Magnesium level

Service Code: 83735, Service Type: Medical

Total Paid

$58,056.75

Total Times Performed (or Units)

2,937,102

Rank Among All Services

121

Includes both office and facility visits.

Services by State

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


Times Performed State
353,736 California
275,431 New Jersey
242,844 Florida
241,520 Texas
195,875 North Carolina
185,108 New York
133,061 Illinois
107,572 Alabama
100,376 Tennessee
100,166 Pennsylvania
98,060 Ohio
95,237 Michigan
79,068 Arizona
61,828 Georgia
51,821 South Carolina
49,857 Kansas
46,711 Massachusetts
40,821 Virginia
40,516 Indiana
40,425 Maryland
37,914 Missouri
37,712 Washington
37,407 Oklahoma
28,137 Arkansas
26,994 Wisconsin
23,266 Connecticut
21,506 Colorado
17,471 Louisiana
17,322 Nevada
16,943 Mississippi
16,475 Oregon
14,406 West Virginia
14,080 Nebraska
13,350 Kentucky
12,560 Minnesota
12,158 Iowa
10,574 Hawaii
8,426 New Mexico
5,894 Maine
5,167 Rhode Island
3,920 Idaho
3,540 Utah
3,174 South Dakota
2,598 North Dakota
1,099 Montana
1,060 Wyoming
805 Vermont
417 New Hampshire
224 Alaska
215 Delaware
109 Washington, DC

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

Laboratories, Clinical Medical Laboratory

5%

of this provider's 1,491,360 patients got this service
116,151

Performed in an office

5%

of this provider's 1,491,360 patients got this service
1.5
LABORATORY CORPORATION OF AMERICA HOLDINGS

RARITAN, N.J. 08869

Laboratories, Clinical Medical Laboratory

6%

of this provider's 831,784 patients got this service
88,572

Performed in an office

6%

of this provider's 831,784 patients got this service
1.7
LABORATORY CORPORATION OF AMERICA HOLDINGS

BIRMINGHAM, Ala. 35233

Laboratories, Clinical Medical Laboratory

6%

of this provider's 684,893 patients got this service
56,975

Performed in an office

6%

of this provider's 684,893 patients got this service
1.5
QUEST DIAGNOSTICS INCORPORATED

TETERBORO, N.J. 07608

Laboratories, Clinical Medical Laboratory

7%

of this provider's 448,515 patients got this service
52,956

Performed in an office

7%

of this provider's 448,515 patients got this service
1.6
LABORATORY CORPORATION OF AMERICA HOLDINGS

DUBLIN, Ohio 43016

Laboratories, Clinical Medical Laboratory

6%

of this provider's 607,320 patients got this service
50,830

Performed in an office

6%

of this provider's 607,320 patients got this service
1.5
UNILAB CORPORATION

WEST HILLS, Calif. 91304

Laboratories, Clinical Medical Laboratory

6%

of this provider's 485,682 patients got this service
48,942

Performed in an office

6%

of this provider's 485,682 patients got this service
1.7
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

TAMPA, Fla. 33617

Laboratories, Clinical Medical Laboratory

4%

of this provider's 701,126 patients got this service
44,863

Performed in an office

4%

of this provider's 701,126 patients got this service
1.6
SONORA QUEST LABORATORIES, LLC.

TEMPE, Ariz. 85281

Laboratories, Clinical Medical Laboratory

7%

of this provider's 317,090 patients got this service
41,262

Performed in an office

7%

of this provider's 317,090 patients got this service
1.9
VPA PC

TROY, Mich. 48084

Laboratories, Clinical Medical Laboratory

59%

of this provider's 33,931 patients got this service
39,861

Performed in an office

59%

of this provider's 33,931 patients got this service
2
SOLSTAS LAB PARTNERS GROUP, LLC

GREENSBORO, N.C. 27410

Laboratories, Clinical Medical Laboratory

5%

of this provider's 470,242 patients got this service
39,354

Performed in an office

5%

of this provider's 470,242 patients got this service
1.5
LABORATORY CORPORATION OF AMERICA

SAN DIEGO, Calif. 92128

Laboratories, Clinical Medical Laboratory

5%

of this provider's 418,130 patients got this service
37,059

Performed in an office

5%

of this provider's 418,130 patients got this service
1.6
LITHOLINK CORPORATION

CHICAGO, Ill. 60612

Laboratories, Clinical Medical Laboratory

99%

of this provider's 26,912 patients got this service
36,981

Performed in an office

99%

of this provider's 26,912 patients got this service
1.3
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

HORSHAM, Pa. 19044

Laboratories, Clinical Medical Laboratory

6%

of this provider's 345,147 patients got this service
31,981

Performed in an office

6%

of this provider's 345,147 patients got this service
1.6
BIO-REFERENCE LABORATORIES, INC.

ELMWOOD PARK, N.J. 07407

Laboratories, Clinical Medical Laboratory

5%

of this provider's 361,248 patients got this service
31,590

Performed in an office

5%

of this provider's 361,248 patients got this service
1.9
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

TUCKER, Ga. 30084

Laboratories, Clinical Medical Laboratory

5%

of this provider's 494,683 patients got this service
29,941

Performed in an office

5%

of this provider's 494,683 patients got this service
1.3
QUEST DIAGNOSTICS LLC IL

WOOD DALE, Ill. 60191

Laboratories, Clinical Medical Laboratory

5%

of this provider's 427,860 patients got this service
27,836

Performed in an office

5%

of this provider's 427,860 patients got this service
1.4
LABORATORY CORPORATION OF AMERICA

DALLAS, Tex. 75230

Laboratories, Clinical Medical Laboratory

4%

of this provider's 426,714 patients got this service
27,549

Performed in an office

4%

of this provider's 426,714 patients got this service
1.5
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

IRVING, Tex. 75063

Laboratories, Clinical Medical Laboratory

4%

of this provider's 370,247 patients got this service
26,779

Performed in an office

4%

of this provider's 370,247 patients got this service
1.6
UNILAB CORPORATION

SACRAMENTO, Calif. 95834

Laboratories, Clinical Medical Laboratory

4%

of this provider's 300,702 patients got this service
25,935

Performed in an office

4%

of this provider's 300,702 patients got this service
2
CLINICAL PATHOLOGY LABORATORIES, INC.

AUSTIN, Tex. 78754

Laboratories, Clinical Medical Laboratory

4%

of this provider's 468,459 patients got this service
25,832

Performed in an office

4%

of this provider's 468,459 patients got this service
1.4
LABONE LLC

LENEXA, Kan. 66219

Laboratories, Clinical Medical Laboratory

4%

of this provider's 361,166 patients got this service
25,409

Performed in an office

4%

of this provider's 361,166 patients got this service
1.6
QUEST DIAGNOSTICS INCORPORATED MD

BALTIMORE, Md. 21227

Laboratories, Clinical Medical Laboratory

5%

of this provider's 276,049 patients got this service
24,502

Performed in an office

5%

of this provider's 276,049 patients got this service
1.7
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

HOUSTON, Tex. 77072

Laboratories, Clinical Medical Laboratory

6%

of this provider's 228,806 patients got this service
23,545

Performed in an office

6%

of this provider's 228,806 patients got this service
1.7
LABORATORY CORPORATION OF AMERICA

TAMPA, Fla. 33607

Laboratories, Clinical Medical Laboratory

4%

of this provider's 396,965 patients got this service
23,167

Performed in an office

4%

of this provider's 396,965 patients got this service
1.6
LABORATORY CORPORATION OF AMERICA

HOUSTON, Tex. 77040

Laboratories, Clinical Medical Laboratory

5%

of this provider's 252,794 patients got this service
21,907

Performed in an office

5%

of this provider's 252,794 patients got this service
1.7
MEMPHIS PATHOLOGY LABORATORY

MEMPHIS, Tenn. 38134

Laboratories, Clinical Medical Laboratory

6%

of this provider's 202,119 patients got this service
20,834

Performed in an office

6%

of this provider's 202,119 patients got this service
1.6
LABORATORY CORPORATION OF AMERICA

PHOENIX, Ariz. 85040

Laboratories, Clinical Medical Laboratory

5%

of this provider's 261,848 patients got this service
20,813

Performed in an office

5%

of this provider's 261,848 patients got this service
1.6
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

MIRAMAR, Fla. 33025

Laboratories, Clinical Medical Laboratory

5%

of this provider's 242,008 patients got this service
19,645

Performed in an office

5%

of this provider's 242,008 patients got this service
1.6
ATHEROTECH, INC.

BIRMINGHAM, Ala. 35211

Laboratories, Clinical Medical Laboratory

15%

of this provider's 103,570 patients got this service
18,854

Performed in an office

15%

of this provider's 103,570 patients got this service
1.2
SHIEL HOLDINGS LLC

BROOKLYN, N.Y. 11205

Laboratories, Clinical Medical Laboratory

7%

of this provider's 138,713 patients got this service
17,442

Performed in an office

7%

of this provider's 138,713 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 2015 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.

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