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Home > MS Providers > Clinical Pathologists

Dr. Karla Perrizo, MD

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Specializes in: Clinical Pathology and Anatomic Pathology

5052 West 4th Street
Hattiesburg, MS 39402

(601) 261-2587

Dr. Karla Perrizo, MD is a clinical pathologist in Hattiesburg, MS specializing in clinical pathology and anatomic pathology. Dr. Karla Perrizo, MD is affiliated with Merit Health.

Office Locations

5052 West 4th Street
Hattiesburg, MS 39402

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Noteworthy Medicare Patient Procedures Performed by Dr. Karla Perrizo, MD in 2023

Click on any procedure below to see further details on volume and pricing among Medicare patients.

Top 25%

By Affordability:

lab tests

In 2012, Dr. Karla Perrizo, MD had a list price for lab tests that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Mississippi. Actual amounts paid by patients can vary widely depending on a number of factors, including insurance coverage. A lower list price, however, might mean lower fees when paying without insurance.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS during 2012 were lab tests and cytology.

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

cytology	360
lab tests	4276

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS during 2013 were lab tests and cytology.

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

cytology	367
lab tests	2454

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Karla Perrizo, MD.

**Gender**
Male	1783
Female	1954

**Ethnicity**
Non-Hispanic White	3206
Black	334
Hispanic	99
Asian	46
Other	0
Native American	0

**Age**
From 65 to 74	2017
From 75 to 84	985
85 and over	160
Less than 65	575

Conditions of Medicare patients treated by Dr. Karla Perrizo, MD in 2013

Hypertension	65
High Cholesterol	57
Stroke	4
Ischemic Heart Disease	34
Depression	19
Chronic Kidney Disease	16
Asthma	6
Osteoperosis	6
Atrial Fibrilation	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	29
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS during 2014 were lab tests and cytology.

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

cytology	2089
lab tests	2960

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Karla Perrizo, MD.

**Gender**
Male	2952
Female	2883

**Ethnicity**
Non-Hispanic White	4681
Black	867
Hispanic	154
Asian	39
Other	83
Native American	11

**Age**
From 65 to 74	3182
From 75 to 84	1507
85 and over	244
Less than 65	902

Conditions of Medicare patients treated by Dr. Karla Perrizo, MD in 2014

Hypertension	68
High Cholesterol	57
Stroke	3
Ischemic Heart Disease	34
Depression	18
Chronic Kidney Disease	19
Asthma	6
Osteoperosis	5
Atrial Fibrilation	8
Heart Failure	14
Chronic Obstructive Pulmonary Disease	14
Diabetes	30
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS during 2015 were lab tests and cytology.

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

cytology	1644
lab tests	3158

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Karla Perrizo, MD.

**Gender**
Male	6172
Female	5846

**Ethnicity**
Non-Hispanic White	9590
Black	1752
Hispanic	368
Asian	108
Other	160
Native American	40

**Age**
From 65 to 74	6484
From 75 to 84	3094
85 and over	564
Less than 65	1876

Conditions of Medicare patients treated by Dr. Karla Perrizo, MD in 2015

Hypertension	69
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	36
Depression	19
Chronic Kidney Disease	20
Asthma	10
Osteoperosis	6
Atrial Fibrilation	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	30
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS during 2016 were lab tests and cytology.

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

cytology	1681
lab tests	2481

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Karla Perrizo, MD.

**Gender**
Male	2565
Female	2353

**Ethnicity**
Non-Hispanic White	4074
Black	607
Hispanic	115
Asian	44
Other	65
Native American	13

**Age**
From 65 to 74	2659
From 75 to 84	1336
85 and over	240
Less than 65	683

Conditions of Medicare patients treated by Dr. Karla Perrizo, MD in 2016

Hypertension	70
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	36
Depression	19
Chronic Kidney Disease	26
Asthma	16
Osteoperosis	6
Atrial Fibrilation	8
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	30
Dementia	6
Cancer	17

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS during 2017 were lab tests and cytology.

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

cytology	4136
lab tests	4532

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Karla Perrizo, MD.

**Gender**
Male	4273
Female	2336

**Ethnicity**
Non-Hispanic White	5525
Black	617
Hispanic	201
Asian	99
Other	116
Native American	51

**Age**
From 65 to 74	3380
From 75 to 84	2140
85 and over	544
Less than 65	545

Conditions of Medicare patients treated by Dr. Karla Perrizo, MD in 2017

Hypertension	71
High Cholesterol	54
Stroke	4
Ischemic Heart Disease	38
Depression	17
Chronic Kidney Disease	30
Asthma	5
Osteoperosis	6
Atrial Fibrilation	11
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	8
Cancer	24

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS during 2018 were lab tests and cytology.

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

cytology	5189
lab tests	6862

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Karla Perrizo, MD.

**Gender**
Male	4636
Female	1957

**Ethnicity**
Non-Hispanic White	5673
Black	395
Hispanic	224
Asian	100
Other	171
Native American	30

**Age**
From 65 to 74	3178
From 75 to 84	2375
85 and over	706
Less than 65	334

Conditions of Medicare patients treated by Dr. Karla Perrizo, MD in 2018

Hypertension	72
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	38
Depression	16
Chronic Kidney Disease	33
Asthma	5
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	8
Cancer	28

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS during 2019 were lab tests and cytology.

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

cytology	2124
lab tests	2715

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Karla Perrizo, MD.

**Gender**
Male	2096
Female	796

**Ethnicity**
Non-Hispanic White	2485
Black	183
Hispanic	98
Asian	0
Other	76
Native American	0

**Age**
From 65 to 74	1344
From 75 to 84	1092
85 and over	331
Less than 65	125

Conditions of Medicare patients treated by Dr. Karla Perrizo, MD in 2019

Hypertension	73
High Cholesterol	65
Stroke	4
Ischemic Heart Disease	41
Depression	18
Chronic Kidney Disease	38
Asthma	5
Osteoperosis	6
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	16
Diabetes	31
Dementia	9
Cancer	30

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS during 2020 were cytology and lab tests.

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

cytology	427
lab tests	425

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Karla Perrizo, MD.

**Gender**
Male	406
Female	96

**Ethnicity**
Non-Hispanic White	450
Black	27
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	242
From 75 to 84	180
85 and over	56
Less than 65	24

Conditions of Medicare patients treated by Dr. Karla Perrizo, MD in 2020

Hypertension	74
High Cholesterol	63
Stroke	3
Ischemic Heart Disease	43
Depression	16
Chronic Kidney Disease	35
Asthma	0
Osteoperosis	3
Atrial Fibrilation	12
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	31
Dementia	7
Cancer	29

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS during 2021 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

consultation	24
cytology	98
lab tests	126

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Karla Perrizo, MD.

**Gender**
Male	331
Female	261

**Ethnicity**
Non-Hispanic White	503
Black	40
Hispanic	29
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	329
From 75 to 84	202
85 and over	27
Less than 65	34

Conditions of Medicare patients treated by Dr. Karla Perrizo, MD in 2021

Hypertension	70
High Cholesterol	60
Stroke	3
Ischemic Heart Disease	34
Depression	19
Chronic Kidney Disease	30
Asthma	4
Osteoperosis	7
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	31
Dementia	6
Cancer	17

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS during 2022 were lab tests, cytology and consultation.

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

consultation	14
cytology	17
lab tests	334

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Karla Perrizo, MD.

**Gender**
Male	562
Female	672

**Ethnicity**
Non-Hispanic White	1052
Black	82
Hispanic	66
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	721
From 75 to 84	367
85 and over	72
Less than 65	74

Conditions of Medicare patients treated by Dr. Karla Perrizo, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	25
Depression	20
Chronic Kidney Disease	19
Asthma	8
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	13
Chronic Obstructive Pulmonary Disease	11
Diabetes	32
Dementia	5
Cancer	23

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Karla Perrizo, MD for Medicare patients.

The highest averages for the top procedures that Dr. Karla Perrizo, MD treated as a clinical pathologist in Hattiesburg, MS were lab tests, cytology and consultation.

consultation	19
cytology	1648
lab tests	2756

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Karla Perrizo, MD.

**Gender**
Male	2343
Female	1741

**Ethnicity**
Black / African American	445
Asian / Pacific Islander	39
Non-Hispanic White	3385
Native American / Alaskan Native	13
Hispanic	123
Other	63

**Age**
75 to 84	1207
85 and over	267
Less than 65	470
65 to 74	2139

Average of Total of Conditions of Medicare patients treated by Dr. Karla Perrizo, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Karla Perrizo, MD treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	64
High Cholesterol	55
Stroke	3
Ischemic Heart Disease	32
Depression	16
Chronic Kidney Disease	24
Asthma	5
Osteoporosis	5
Heart Failure	13
Chronic Obstructive Pulmonary Disease	12
Diabetes	27
Atrial Fibrillation	9
Dementia	6
Cancer	19

Education & Training

She completed residency at University of Mississippi Medical Center. She is certified by the American Board of Pathology Pathology and has a state license in Texas.

Residency: University of Mississippi Medical Center

Board Certification: American Board of Pathology Pathology

Licensed In: Texas

Affiliations & Hospitals

Dr. Karla Perrizo, MD is associated with these hospitals and organizations:

Merit Health

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General Payments

These charts describe general payments received by Dr. Karla Perrizo, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
Merck Sharp & Dohme LLC	$20 KEYTRUDA $20
Bayer HealthCare Pharmaceuticals Inc.	$12 Xofigo $12

**Types of Payments**
Food and Beverage	$31

Biography

Dr. Karla Perrizo's medical specialty is anatomic pathology and clinical pathology. She is affiliated with Merit Health. Dr. Perrizo studied medicine at the University of Texas Medical Branch School of Medicine. She trained at the University of Mississippi Medical Center for her residency.