Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > NC Providers > Clinical Pathologists

Dr. William A. Ahrens, MD

(No ratings)

Specializes in: Clinical Pathology and Pediatric Pathology

Stony Brook University Medical Center, School of Medicine (1999)

Professional interests include: gastrointestinal problems (digestive disorders), liver disease, pancreas problems

1000 Blythe Boulevard
Charlotte, NC 28203

(704) 355-2251

Dr. William A. Ahrens, MD is a clinical pathologist in Charlotte, NC specializing in clinical pathology and pediatric pathology. He graduated from Stony Brook University Medical Center, School of Medicine in 1999 and has 27 years of experience. Dr. William A. Ahrens, MD is affiliated with Carolinas Pathology, Spartanburg Regional Healthcare System and CAROLINAS PATHOLOGY GROUP PA.

Office Locations

1000 Blythe Boulevard
Charlotte, NC 28203

open_in_new

Some issues Dr. William A. Ahrens, MD can help you with:

Gastrointestinal Problems (Digestive Disorders)

The gastrointestinal system, or GI tract, is the name given to a collection of organs that work together to digest food. These organs fit together in a long tube, running from the mouth to the anus, and include the esophagus, stomach, and intestines, among others. With so many parts working together, complicated by today's busy lifestyles and diets, digestive problems are common. As many as 1 in 3 Americans have a digestive or GI disorder. There are a huge variety of digestive problems, but the most common are IBS, constipation, GERD, hemorrhoids, and ulcers.

IBS, or irritable bowel syndrome, happens when the muscles surrounding the colon contract too easily or frequently. The result is abdominal pain, cramps, diarrhea or constipation, gas and bloating. IBS attacks can often be brought on by specific triggers, so a key part of treatment is learning which foods trigger IBS attacks and avoiding them. Treatment also includes exercise, avoiding stress, and medications if needed.

Constipation, or large, hard, or infrequent stools, happens to everyone at some point. It can be caused by a disruption in routine or food, or by eating a diet without many fresh fruits and vegetables. Although it is uncomfortable, constipation is common and usually not serious, but it can sometimes become chronic. Adding fiber to the diet, exercising, and taking medications may help.

GERD, or gastroesophageal reflux disease, is a severe form of chronic heartburn where stomach acid spills back up into the esophagus. Left untreated, the acid may even eat away at the esophagus and cause serious damage. Treatment includes changing the diet to avoid trigger foods, losing weight if needed, medications, or even surgery.

Hemorrhoids are blood vessels around the rectum that become irritated, swollen or torn while straining during a bowel movement. They are most often caused by constipation, but can also be caused by pregnancy, diarrhea, or simply a genetic predisposition towards hemorrhoids. Treatment involves first treating any constipation issues, then keeping the area clean and soothed until it has healed. If these measures are ineffective, surgery is sometimes used.

Peptic ulcers are sores or spots of inflammation in the lining of the stomach or close to the stomach in the small intestine. Usually this area is coated with a protective lining that shields the tissue from the strong stomach acid, but a break in the lining can let acid in, causing the sores. It used to be thought that stress caused ulcers, but now it is known that is not the case. Most often, they are caused by an infection by H. pylori bacteria, but ulcers can also be caused by alcohol abuse or overuse of aspirin, ibuprofen, naproxen, or other NSAIDS. The symptoms of an ulcer are pain, hunger, nausea, and fatigue.

Gastrointestinal problems, perhaps more than any other area, are markedly affected by lifestyle. Many disorders can be prevented or treated at least in part by eating a healthy diet high in fiber, exercising regularly, drinking enough water, and limiting alcohol intake. Still, the frequency of digestive disorders means that even the healthiest person can be affected by them. Anyone who notices blood in their stool, experiences abdominal pain, unexplained weight loss, or any significant change in bowel movements should see a doctor.

Noteworthy Medicare Patient Procedures Performed by Dr. William A. Ahrens, MD in 2023

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

Top 5%

By Volume:

slide consultation

By Affordability:

second opinions

slide consultation

In 2023, among providers in related specialties within North Carolina, Dr. William A. Ahrens, MD performed more slide consultation procedures for Medicare patients than 95% of them and he also had a list price for second opinions, and slide consultation that was lower than the list prices billed to Medicare by 95% of them. 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.

Top 25%

By Volume:

lab tests

In 2012, Dr. William A. Ahrens, MD performed more lab tests procedures for Medicare patients than 75% of providers in related specialties within North Carolina.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC during 2012 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

consultation	120
lab tests	1865
second opinions	20

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC during 2013 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

consultation	147
lab tests	1836
second opinions	25

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Ahrens, MD.

**Gender**
Male	631
Female	698

**Ethnicity**
Non-Hispanic White	1018
Black	224
Hispanic	41
Asian	0
Other	23
Native American	0

**Age**
From 65 to 74	789
From 75 to 84	308
85 and over	34
Less than 65	198

Conditions of Medicare patients treated by Dr. William A. Ahrens, MD in 2013

Hypertension	62
High Cholesterol	55
Stroke	3
Ischemic Heart Disease	22
Depression	18
Chronic Kidney Disease	20
Asthma	6
Osteoperosis	6
Atrial Fibrilation	6
Heart Failure	8
Chronic Obstructive Pulmonary Disease	12
Diabetes	29
Dementia	4
Cancer	17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC during 2014 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

consultation	86
lab tests	1925
second opinions	13

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Ahrens, MD.

**Gender**
Male	674
Female	843

**Ethnicity**
Non-Hispanic White	1171
Black	278
Hispanic	32
Asian	0
Other	22
Native American	0

**Age**
From 65 to 74	839
From 75 to 84	376
85 and over	62
Less than 65	240

Conditions of Medicare patients treated by Dr. William A. Ahrens, MD in 2014

Hypertension	68
High Cholesterol	60
Stroke	3
Ischemic Heart Disease	28
Depression	23
Chronic Kidney Disease	24
Asthma	8
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	14
Diabetes	31
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC during 2015 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

consultation	77
lab tests	420
second opinions	14

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Ahrens, MD.

**Gender**
Male	1346
Female	1568

**Ethnicity**
Non-Hispanic White	2142
Black	606
Hispanic	84
Asian	46
Other	36
Native American	0

**Age**
From 65 to 74	1584
From 75 to 84	686
85 and over	136
Less than 65	508

Conditions of Medicare patients treated by Dr. William A. Ahrens, MD in 2015

Hypertension	69
High Cholesterol	59
Stroke	5
Ischemic Heart Disease	28
Depression	21
Chronic Kidney Disease	28
Asthma	14
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	13
Chronic Obstructive Pulmonary Disease	17
Diabetes	31
Dementia	7
Cancer	17

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC during 2016 were lab tests and consultation.

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

consultation	112
lab tests	347

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Ahrens, MD.

**Gender**
Male	686
Female	779

**Ethnicity**
Non-Hispanic White	1110
Black	286
Hispanic	30
Asian	0
Other	20
Native American	0

**Age**
From 65 to 74	829
From 75 to 84	352
85 and over	59
Less than 65	225

Conditions of Medicare patients treated by Dr. William A. Ahrens, MD in 2016

Hypertension	69
High Cholesterol	58
Stroke	4
Ischemic Heart Disease	28
Depression	22
Chronic Kidney Disease	31
Asthma	18
Osteoperosis	6
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	15
Diabetes	32
Dementia	7
Cancer	16

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC during 2017 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

consultation	113
lab tests	430
second opinions	15

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Ahrens, MD.

**Gender**
Male	828
Female	992

**Ethnicity**
Non-Hispanic White	1418
Black	308
Hispanic	32
Asian	0
Other	38
Native American	0

**Age**
From 65 to 74	1041
From 75 to 84	451
85 and over	66
Less than 65	262

Conditions of Medicare patients treated by Dr. William A. Ahrens, MD in 2017

Hypertension	70
High Cholesterol	52
Stroke	4
Ischemic Heart Disease	27
Depression	26
Chronic Kidney Disease	31
Asthma	8
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	12
Chronic Obstructive Pulmonary Disease	16
Diabetes	32
Dementia	8
Cancer	18

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC during 2018 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

consultation	89
lab tests	463
second opinions	19

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Ahrens, MD.

**Gender**
Male	865
Female	955

**Ethnicity**
Non-Hispanic White	0
Black	333
Hispanic	52
Asian	0
Other	39
Native American	0

**Age**
From 65 to 74	999
From 75 to 84	472
85 and over	78
Less than 65	271

Conditions of Medicare patients treated by Dr. William A. Ahrens, MD in 2018

Hypertension	71
High Cholesterol	62
Stroke	4
Ischemic Heart Disease	30
Depression	26
Chronic Kidney Disease	32
Asthma	8
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	15
Chronic Obstructive Pulmonary Disease	17
Diabetes	32
Dementia	8
Cancer	19

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC during 2019 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

consultation	74
lab tests	417
second opinions	22

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Ahrens, MD.

**Gender**
Male	846
Female	951

**Ethnicity**
Non-Hispanic White	1387
Black	282
Hispanic	45
Asian	0
Other	44
Native American	0

**Age**
From 65 to 74	1007
From 75 to 84	468
85 and over	81
Less than 65	241

Conditions of Medicare patients treated by Dr. William A. Ahrens, MD in 2019

Hypertension	69
High Cholesterol	59
Stroke	4
Ischemic Heart Disease	29
Depression	26
Chronic Kidney Disease	35
Asthma	7
Osteoperosis	8
Atrial Fibrilation	11
Heart Failure	16
Chronic Obstructive Pulmonary Disease	15
Diabetes	32
Dementia	8
Cancer	19

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC during 2020 were lab tests and consultation.

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

consultation	76
lab tests	443

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Ahrens, MD.

**Gender**
Male	718
Female	764

**Ethnicity**
Non-Hispanic White	1127
Black	276
Hispanic	35
Asian	0
Other	32
Native American	0

**Age**
From 65 to 74	823
From 75 to 84	409
85 and over	68
Less than 65	182

Conditions of Medicare patients treated by Dr. William A. Ahrens, MD in 2020

Hypertension	70
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	33
Depression	23
Chronic Kidney Disease	37
Asthma	7
Osteoperosis	8
Atrial Fibrilation	12
Heart Failure	19
Chronic Obstructive Pulmonary Disease	14
Diabetes	33
Dementia	10
Cancer	21

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC during 2021 were lab tests and consultation.

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

consultation	107
lab tests	597

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Ahrens, MD.

**Gender**
Male	863
Female	952

**Ethnicity**
Non-Hispanic White	1445
Black	252
Hispanic	44
Asian	0
Other	47
Native American	0

**Age**
From 65 to 74	947
From 75 to 84	584
85 and over	89
Less than 65	195

Conditions of Medicare patients treated by Dr. William A. Ahrens, MD in 2021

Hypertension	69
High Cholesterol	63
Stroke	3
Ischemic Heart Disease	33
Depression	24
Chronic Kidney Disease	37
Asthma	7
Osteoperosis	9
Atrial Fibrilation	12
Heart Failure	16
Chronic Obstructive Pulmonary Disease	15
Diabetes	30
Dementia	9
Cancer	21

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC during 2022 were lab tests, consultation and second opinions.

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

consultation	107
lab tests	491
second opinions	22

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William A. Ahrens, MD.

**Gender**
Male	864
Female	915

**Ethnicity**
Non-Hispanic White	1402
Black	263
Hispanic	36
Asian	0
Other	50
Native American	0

**Age**
From 65 to 74	929
From 75 to 84	580
85 and over	88
Less than 65	182

Conditions of Medicare patients treated by Dr. William A. Ahrens, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	27
Depression	23
Chronic Kidney Disease	24
Asthma	10
Osteoperosis	12
Atrial Fibrilation	19
Heart Failure	15
Chronic Obstructive Pulmonary Disease	15
Diabetes	32
Dementia	5
Cancer	22

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. William A. Ahrens, MD for Medicare patients.

The highest averages for the top procedures that Dr. William A. Ahrens, MD treated as a clinical pathologist in Charlotte, NC were lab tests, consultation and second opinions.

consultation	100
lab tests	839
second opinions	18

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. William A. Ahrens, MD.

**Gender**
Male	756
Female	856

**Ethnicity**
Black / African American	282
Asian / Pacific Islander	4
Non-Hispanic White	1110
Hispanic	39
Native American / Alaskan Native	0
Other	31

**Age**
75 to 84	426
85 and over	69
Less than 65	227
65 to 74	889

Average of Total of Conditions of Medicare patients treated by Dr. William A. Ahrens, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. William A. Ahrens, MD treated were hypertension, high cholesterol, diabetes and chronic kidney disease.

Hypertension	62
High Cholesterol	54
Stroke	3
Ischemic Heart Disease	25
Depression	21
Chronic Kidney Disease	27
Asthma	8
Osteoporosis	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	13
Diabetes	28
Atrial Fibrillation	9
Cancer	16
Dementia	6

Education & Training

Dr. William A. Ahrens, MD graduated from Stony Brook University Medical Center, School of Medicine in 1999. He completed residency at Yale University Affiliated Hospitals. He is certified by the Licensure : American Board of Pathology Board Certification : Anatomic Pathology & Clinical Pathology and has a state license in South Carolina.

Medical School: Stony Brook University Medical Center, School of Medicine (1999)

Residency: Yale University Affiliated Hospitals

Board Certification: Licensure : American Board of Pathology Board Certification : Anatomic Pathology & Clinical Pathology

Licensed In: South Carolina

Affiliations & Hospitals

Dr. William A. Ahrens, MD is associated with these hospitals and organizations:

Carolinas Pathology

Spartanburg Regional Healthcare System

CAROLINAS PATHOLOGY GROUP PA

Ratings & Reviews

Dr. William A. Ahrens, MD does not have any reviews yet, be the first to leave a review of Dr. William A. Ahrens, MD here: Leave a Review

(No ratings)

Leave a Review

General Payments

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

**Payments by Company**
Ventana Medical Systems, Inc.	$1,136 RTD Primary Staining Instrument or Assays $1,136
Abbott Laboratories	$13 Molecular Diagnostics $13

**Types of Payments**
Travel and Lodging	$1,109
Food and Beverage	$39

Biography

Dr. William Ahrens works as a clinical pathology and pediatric pathology. His areas of expertise include gastrointestinal problems (digestive disorders), pancreas problems, and liver disease. He is affiliated with Spartanburg Regional Healthcare System and Carolinas Pathology. Dr. Ahrens's education and training includes medical school at Stony Brook University Medical Center, School of Medicine and residency at a hospital affiliated with Yale University.