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Treatment Tracker

PATHOLOGY AND LABORATORY

Thyroxine (thyroid chemical) measurement

Service Code: 84439, Service Type: Medical

Total Paid

$124,635

Total Times Performed (or Units)

4,694,674

Rank Among All Services

87

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
517,664 California
485,069 Florida
477,560 New Jersey
411,511 Texas
367,041 New York
322,093 North Carolina
193,836 Alabama
171,027 Ohio
142,514 Michigan
137,881 Pennsylvania
133,269 Arizona
119,723 Georgia
114,527 Tennessee
101,649 Illinois
90,445 Virginia
83,473 Maryland
71,029 Kansas
61,685 Washington
54,632 Missouri
53,795 Massachusetts
44,625 Indiana
43,614 Connecticut
39,915 Kentucky
39,224 Oklahoma
38,517 South Carolina
36,906 Oregon
35,842 Wisconsin
32,472 Colorado
31,873 Nevada
29,750 Arkansas
25,387 Nebraska
23,876 Louisiana
19,634 Iowa
18,330 Hawaii
15,242 Utah
15,114 Mississippi
14,081 New Mexico
12,658 Minnesota
10,438 South Dakota
10,009 West Virginia
9,008 Idaho
7,417 Rhode Island
6,466 Maine
4,431 North Dakota
1,885 Montana
1,833 Wyoming
1,105 New Hampshire
844 Washington, DC
321 Vermont
157 Alaska
38 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

Laboratories, Clinical Medical Laboratory

8%

of this provider's 1,350,844 patients got this service
161,004

Performed in an office

8%

of this provider's 1,350,844 patients got this service
1.4
LABORATORY CORPORATION OF AMERICA HOLDINGS

RARITAN, N.J. 08869

Laboratories, Clinical Medical Laboratory

13%

of this provider's 770,923 patients got this service
138,602

Performed in an office

13%

of this provider's 770,923 patients got this service
1.4
QUEST DIAGNOSTICS INCORPORATED

TETERBORO, N.J. 07608

Laboratories, Clinical Medical Laboratory

19%

of this provider's 472,469 patients got this service
131,027

Performed in an office

19%

of this provider's 472,469 patients got this service
1.4
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

TAMPA, Fla. 33617

Laboratories, Clinical Medical Laboratory

13%

of this provider's 664,741 patients got this service
116,257

Performed in an office

13%

of this provider's 664,741 patients got this service
1.4
LABORATORY CORPORATION OF AMERICA HOLDINGS

BIRMINGHAM, Ala. 35233

Laboratories, Clinical Medical Laboratory

10%

of this provider's 699,573 patients got this service
96,100

Performed in an office

10%

of this provider's 699,573 patients got this service
1.4
LABORATORY CORPORATION OF AMERICA HOLDINGS

DUBLIN, Ohio 43016

Laboratories, Clinical Medical Laboratory

11%

of this provider's 624,507 patients got this service
91,799

Performed in an office

11%

of this provider's 624,507 patients got this service
1.4
BIO-REFERENCE LABORATORIES, INC.

ELMWOOD PARK, N.J. 07407

Laboratories, Clinical Medical Laboratory

17%

of this provider's 352,168 patients got this service
89,000

Performed in an office

17%

of this provider's 352,168 patients got this service
1.5
SOLSTAS LAB PARTNERS GROUP, LLC

GREENSBORO, N.C. 27410

Laboratories, Clinical Medical Laboratory

10%

of this provider's 594,160 patients got this service
78,768

Performed in an office

10%

of this provider's 594,160 patients got this service
1.4
UNILAB CORPORATION

WEST HILLS, Calif. 91304

Laboratories, Clinical Medical Laboratory

13%

of this provider's 442,569 patients got this service
76,722

Performed in an office

13%

of this provider's 442,569 patients got this service
1.3
LABORATORY CORPORATION OF AMERICA

SAN DIEGO, Calif. 92128

Laboratories, Clinical Medical Laboratory

13%

of this provider's 411,357 patients got this service
71,066

Performed in an office

13%

of this provider's 411,357 patients got this service
1.3
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

TUCKER, Ga. 30084

Laboratories, Clinical Medical Laboratory

10%

of this provider's 508,264 patients got this service
70,677

Performed in an office

10%

of this provider's 508,264 patients got this service
1.4
CLINICAL PATHOLOGY LABORATORIES, INC.

AUSTIN, Tex. 78754

Laboratories, Clinical Medical Laboratory

10%

of this provider's 462,305 patients got this service
62,755

Performed in an office

10%

of this provider's 462,305 patients got this service
1.3
LABORATORY CORPORATION OF AMERICA

TAMPA, Fla. 33607

Laboratories, Clinical Medical Laboratory

10%

of this provider's 423,489 patients got this service
59,409

Performed in an office

10%

of this provider's 423,489 patients got this service
1.3
LABORATORY CORPORATION OF AMERICA

DALLAS, Tex. 75230

Laboratories, Clinical Medical Laboratory

10%

of this provider's 441,387 patients got this service
55,216

Performed in an office

10%

of this provider's 441,387 patients got this service
1.3
SHIEL MEDICAL LABORATORY, INC

BROOKLYN, N.Y. 11205

Laboratories, Clinical Medical Laboratory

28%

of this provider's 133,820 patients got this service
54,136

Performed in an office

28%

of this provider's 133,820 patients got this service
1.5
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

HORSHAM, Pa. 19044

Laboratories, Clinical Medical Laboratory

11%

of this provider's 361,064 patients got this service
53,365

Performed in an office

11%

of this provider's 361,064 patients got this service
1.3
SONORA QUEST LABORATORIES, LLC.

TEMPE, Ariz. 85281

Laboratories, Clinical Medical Laboratory

12%

of this provider's 303,775 patients got this service
50,660

Performed in an office

12%

of this provider's 303,775 patients got this service
1.3
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

IRVING, Tex. 75063

Laboratories, Clinical Medical Laboratory

11%

of this provider's 341,942 patients got this service
49,430

Performed in an office

11%

of this provider's 341,942 patients got this service
1.4
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

MIRAMAR, Fla. 33025

Laboratories, Clinical Medical Laboratory

14%

of this provider's 239,663 patients got this service
47,517

Performed in an office

14%

of this provider's 239,663 patients got this service
1.4
UNILAB CORPORATION

SACRAMENTO, Calif. 95834

Laboratories, Clinical Medical Laboratory

12%

of this provider's 303,766 patients got this service
47,385

Performed in an office

12%

of this provider's 303,766 patients got this service
1.3
LABORATORY CORPORATION OF AMERICA

PHOENIX, Ariz. 85040

Laboratories, Clinical Medical Laboratory

13%

of this provider's 265,813 patients got this service
46,639

Performed in an office

13%

of this provider's 265,813 patients got this service
1.3
QUEST DIAGNOSTICS INCORPORATED MD

BALTIMORE, Md. 21227

Laboratories, Clinical Medical Laboratory

12%

of this provider's 276,799 patients got this service
43,502

Performed in an office

12%

of this provider's 276,799 patients got this service
1.4
QUEST DIAGNOSTICS CLINICAL LABORATORIES INC

HOUSTON, Tex. 77072

Laboratories, Clinical Medical Laboratory

14%

of this provider's 226,856 patients got this service
42,951

Performed in an office

14%

of this provider's 226,856 patients got this service
1.4
LABONE LLC

LENEXA, Kan. 66219

Laboratories, Clinical Medical Laboratory

10%

of this provider's 328,938 patients got this service
42,543

Performed in an office

10%

of this provider's 328,938 patients got this service
1.3
ATHEROTECH, INC.

BIRMINGHAM, Ala. 35211

Laboratories, Clinical Medical Laboratory

29%

of this provider's 119,178 patients got this service
42,488

Performed in an office

29%

of this provider's 119,178 patients got this service
1.2
QUEST DIAGNOSTICS LLC IL

WOOD DALE, Ill. 60191

Laboratories, Clinical Medical Laboratory

10%

of this provider's 332,457 patients got this service
42,342

Performed in an office

10%

of this provider's 332,457 patients got this service
1.2
LABORATORY CORPORATION OF AMERICA

HOUSTON, Tex. 77040

Laboratories, Clinical Medical Laboratory

11%

of this provider's 260,159 patients got this service
40,961

Performed in an office

11%

of this provider's 260,159 patients got this service
1.4
HEALTH DIAGNOSTIC LABORATORY, INCORPORATED

RICHMOND, Va. 23219

Laboratories, Clinical Medical Laboratory

22%

of this provider's 142,242 patients got this service
39,360

Performed in an office

22%

of this provider's 142,242 patients got this service
1.3
QUEST DIAGNOSTICS INCORPORATED MI

TROY, Mich. 48083

Laboratories, Clinical Medical Laboratory

14%

of this provider's 184,474 patients got this service
33,100

Performed in an office

14%

of this provider's 184,474 patients got this service
1.3
SUNRISE MEDICAL LABORATORIES, INC.

HICKSVILLE, N.Y. 11801

Laboratories, Clinical Medical Laboratory

14%

of this provider's 151,605 patients got this service
31,532

Performed in an office

14%

of this provider's 151,605 patients got this service
1.5

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.

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