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Home > IL Providers > Endocrinologists

Dr. Tiffany A. Karas, MD

Accepting New Patients

(Tiffany A. Karas, MD)

(93 Ratings)

Specializes in: Physician and Endocrinology Diabetes & Metabolism

Southern Illinois University School of Medicine (2000)

1600 N Randall Road Suite 225
Elgin, IL 60123

(630) 208-6775

Dr. Tiffany A. Karas, MD is a physician provider in Elgin, IL specializing in physician and endocrinology diabetes & metabolism. She graduated from Southern Illinois University School of Medicine in 2000 and has 26 years of experience. Dr. Tiffany A. Karas, MD is affiliated with Northwestern Medicine and Northwestern Medicine Regional Medical Group.

Office Locations

1600 N Randall Road Suite 225
Elgin, IL 60123

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Noteworthy Medicare Patient Procedures Performed by Dr. Tiffany A. Karas, MD in 2024

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

Top 5%

By Volume:

A1C test

By Affordability:

hospital care

inpatient care

inpatient hospital care

In 2024, among providers in related specialties within Illinois, Dr. Tiffany A. Karas, MD performed more A1C test procedures for Medicare patients than 95% of them and she also had a list price for hospital care, inpatient care, and inpatient hospital care (for patient admitted to hospital) 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.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2012 were lab tests, preventive care, diabetes management and hospital care.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	185
doctor visit	817
hospital care	63
inpatient care	63
lab tests	185
preventive care	185

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2013 were lab tests, preventive care, diabetes management and hospital care.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	436
doctor visit	817
hospital care	121
inpatient care	121
lab tests	436
preventive care	436

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	137
Female	268

**Ethnicity**
Non-Hispanic White	380
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	199
From 75 to 84	116
85 and over	40
Less than 65	50

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2013

Hypertension	72
High Cholesterol	61
Stroke	6
Ischemic Heart Disease	37
Depression	19
Chronic Kidney Disease	30
Asthma	9
Osteoperosis	17
Atrial Fibrilation	13
Heart Failure	20
Chronic Obstructive Pulmonary Disease	12
Diabetes	65
Dementia	8
Cancer	7

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2014 were lab tests, preventive care, diabetes management and hospital care.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	414
doctor visit	743
hospital care	86
inpatient care	86
lab tests	414
preventive care	414

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	121
Female	263

**Ethnicity**
Non-Hispanic White	360
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	178
From 75 to 84	110
85 and over	37
Less than 65	59

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2014

Hypertension	69
High Cholesterol	61
Stroke	4
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	31
Asthma	6
Osteoperosis	16
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	10
Diabetes	64
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2015 were lab tests, preventive care, diabetes management and hospital care.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	397
doctor visit	703
hospital care	103
inpatient care	103
lab tests	397
preventive care	397

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	224
Female	508

**Ethnicity**
Non-Hispanic White	684
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	362
From 75 to 84	218
85 and over	60
Less than 65	92

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2015

Hypertension	72
High Cholesterol	64
Stroke	6
Ischemic Heart Disease	37
Depression	26
Chronic Kidney Disease	41
Asthma	9
Osteoperosis	17
Atrial Fibrilation	14
Heart Failure	21
Chronic Obstructive Pulmonary Disease	11
Diabetes	63
Dementia	7
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2016 were lab tests, preventive care, diabetes management and hospital care.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	382
doctor visit	638
hospital care	53
inpatient care	53
lab tests	382
preventive care	382

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	91
Female	223

**Ethnicity**
Non-Hispanic White	300
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	184
From 75 to 84	78
85 and over	19
Less than 65	33

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2016

Hypertension	70
High Cholesterol	57
Stroke	0
Ischemic Heart Disease	31
Depression	24
Chronic Kidney Disease	51
Asthma	15
Osteoperosis	15
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	12
Diabetes	63
Dementia	4
Cancer	9

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2017 were lab tests, preventive care, diabetes management and hospital care.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	423
doctor visit	677
hospital care	53
inpatient care	53
lab tests	423
preventive care	423

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	95
Female	236

**Ethnicity**
Non-Hispanic White	311
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	194
From 75 to 84	91
85 and over	18
Less than 65	28

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2017

Hypertension	69
High Cholesterol	48
Stroke	4
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	53
Asthma	5
Osteoperosis	16
Atrial Fibrilation	10
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	63
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2018 were lab tests, preventive care, diabetes management and hospital care.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	431
doctor visit	685
hospital care	52
inpatient care	52
lab tests	431
preventive care	431

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	99
Female	259

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

**Age**
From 65 to 74	199
From 75 to 84	90
85 and over	22
Less than 65	47

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2018

Hypertension	72
High Cholesterol	66
Stroke	5
Ischemic Heart Disease	30
Depression	21
Chronic Kidney Disease	50
Asthma	7
Osteoperosis	16
Atrial Fibrilation	9
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	63
Dementia	5
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2019 were lab tests, preventive care, diabetes management and hospital care.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	468
doctor visit	771
hospital care	84
inpatient care	84
lab tests	468
preventive care	468

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	102
Female	277

**Ethnicity**
Non-Hispanic White	354
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	208
From 75 to 84	105
85 and over	27
Less than 65	39

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2019

Hypertension	74
High Cholesterol	68
Stroke	0
Ischemic Heart Disease	33
Depression	25
Chronic Kidney Disease	48
Asthma	6
Osteoperosis	16
Atrial Fibrilation	12
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	64
Dementia	7
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2020 were lab tests, preventive care and diabetes management.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	330
doctor visit	586
lab tests	330
preventive care	330

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	102
Female	275

**Ethnicity**
Non-Hispanic White	345
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	210
From 75 to 84	97
85 and over	27
Less than 65	43

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2020

Hypertension	71
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	32
Depression	24
Chronic Kidney Disease	47
Asthma	5
Osteoperosis	16
Atrial Fibrilation	10
Heart Failure	15
Chronic Obstructive Pulmonary Disease	11
Diabetes	64
Dementia	6
Cancer	9

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2021 were preventive care, lab tests, diabetes management and hospital care.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	414
doctor visit	663
hospital care	55
inpatient care	55
lab tests	414
preventive care	425
vaccines	11

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	105
Female	268

**Ethnicity**
Non-Hispanic White	335
Black	0
Hispanic	11
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	207
From 75 to 84	100
85 and over	24
Less than 65	42

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2021

Hypertension	71
High Cholesterol	73
Stroke	5
Ischemic Heart Disease	33
Depression	22
Chronic Kidney Disease	46
Asthma	5
Osteoperosis	17
Atrial Fibrilation	13
Heart Failure	16
Chronic Obstructive Pulmonary Disease	9
Diabetes	65
Dementia	6
Cancer	10

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2022 were preventive care, lab tests, diabetes management and vaccines.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	373
doctor visit	629
lab tests	373
preventive care	386
vaccines	13

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	99
Female	268

**Ethnicity**
Non-Hispanic White	333
Black	0
Hispanic	0
Asian	0
Other	11
Native American	0

**Age**
From 65 to 74	190
From 75 to 84	113
85 and over	32
Less than 65	32

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	31
Depression	20
Chronic Kidney Disease	28
Asthma	7
Osteoperosis	26
Atrial Fibrilation	19
Heart Failure	18
Chronic Obstructive Pulmonary Disease	14
Diabetes	64
Dementia	4
Cancer	17

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2023 were lab tests, preventive care, diabetes management and hospital care.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	319
doctor visit	550
hospital care	58
inpatient care	58
lab tests	319
preventive care	319

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	96
Female	258

**Ethnicity**
Non-Hispanic White	323
Black	0
Hispanic	0
Asian	0
Other	13
Native American	0

**Age**
From 65 to 74	183
From 75 to 84	112
85 and over	28
Less than 65	31

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	29
Depression	21
Chronic Kidney Disease	31
Asthma	9
Osteoperosis	24
Atrial Fibrilation	18
Heart Failure	16
Chronic Obstructive Pulmonary Disease	12
Diabetes	66
Dementia	5
Cancer	16

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL during 2024 were preventive care, lab tests, diabetes management and hospital care.

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

diabetes management	329
doctor visit	574
hospital care	21
inpatient care	21
lab tests	329
preventive care	344
vaccines	15

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	90
Female	236

**Ethnicity**
Non-Hispanic White	298
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	161
From 75 to 84	111
85 and over	29
Less than 65	25

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2024

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	30
Depression	23
Chronic Kidney Disease	34
Asthma	11
Osteoperosis	25
Atrial Fibrilation	18
Heart Failure	17
Chronic Obstructive Pulmonary Disease	14
Diabetes	63
Dementia	6
Cancer	16

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Tiffany A. Karas, MD for Medicare patients.

The highest averages for the top procedures that Dr. Tiffany A. Karas, MD treated as a physician provider in Elgin, IL were preventive care, lab tests, diabetes management and hospital care.

diabetes management	377
doctor visit	681
hospital care	68
inpatient care	68
lab tests	377
preventive care	380
vaccines	13

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Tiffany A. Karas, MD.

**Gender**
Male	104
Female	256

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	335
Native American / Alaskan Native	0
Hispanic	0
Other	2

**Age**
75 to 84	103
85 and over	27
Less than 65	40
65 to 74	190

Average of Total of Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD From 2012 - 2024

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

Hypertension	66
High Cholesterol	60
Stroke	4
Ischemic Heart Disease	29
Depression	20
Chronic Kidney Disease	37
Asthma	7
Osteoporosis	17
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	59
Atrial Fibrillation	12
Dementia	5
Cancer	10

Education & Training

Dr. Tiffany A. Karas, MD graduated from Southern Illinois University School of Medicine in 2000. She completed residency at Loyola University Medical Center. She is certified by the American Board of Internal Medicine/Endocrinology, Diabetes and Metabolism - Endocrinology, Diabetes & Metabolism (Certified) and has a state license in Illinois.

Medical School: Southern Illinois University School of Medicine (2000)

Residency: Loyola University Medical Center (2003)

Board Certification: American Board of Internal Medicine/Endocrinology, Diabetes and Metabolism - Endocrinology, Diabetes & Metabolism (Certified)

Licensed In: Illinois

Affiliations & Hospitals

Dr. Tiffany A. Karas, MD is associated with these hospitals and organizations:

Northwestern Medicine

Northwestern Medicine Regional Medical Group

Ratings & Reviews

Dr. Tiffany A. Karas, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 93 ratings. We collect ratings and reviews of Dr. Tiffany A. Karas, MD from all over the web to help you find the right in Elgin, IL.

Overall Rating

(93 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 5.0 2022-04-01

I have been seeing Dr. Karas for a few years now and I love her. Great Dr. Always takes time for and listens well to my concerns. And great staff too.

General Payments

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

**Payments by Company**
Novo Nordisk Inc	$417 Ozempic $115	Victoza $71	Saxenda $42	Levemir $40	Tresiba $24	Other $125
Amgen Inc.	$220 EVENITY $118	Prolia $68	Repatha $34
SANOFI-AVENTIS U.S. LLC	$198 TOUJEO $98	LANTUS $68	AFREZZA $21	APIDRA $12
AstraZeneca Pharmaceuticals LP	$128 BYDUREON PEN $64	FARXIGA $25	BYDUREON WEEKLY $18	$22
Valeritas, Inc.	$107 V-GO $107
Other	$704 TRADJENTA $69	DC ACCU-CHEK Aviva Connect Kits and Accessories $66	Dexcom G4 Platinum $59	FreeStyle Lite system $50	meters $47	Other $413

**Types of Payments**
Food and Beverage	$1,654
Education	$120

Ownership and Interest Payments

This table describes ownership payments received by Dr. Tiffany A. Karas, MD.

CCPA Purchasing Partners, L.P.	2013	$203.79	Physician Covered Recipient	Limited partnership interest
CCPA Purchasing Partners, L.P.	2016	$15.78	Physician Covered Recipient	Limited Partnership Interest
CCPA Purchasing Partners, L.P.	2014	$15.78	Physician Covered Recipient	Limited Partnership Interest
CCPA Purchasing Partners, L.P.	2015	$15.78	Physician Covered Recipient	Limited Partnership Interest

Biography

Dr. Tiffany Karas' areas of specialization are endocrinology and physician. On average, patients gave her a rating of 5.0 stars (out of 5). Dr. Karas graduated from Southern Illinois University School of Medicine. She trained at a hospital affiliated with Loyola University for residency. Dr. Karas is professionally affiliated with Northwestern Medicine Regional Medical Group and Delnor Hospital. Yext reports that she is accepting new patients at her office in Elgin, IL.

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Dr. Tiffany A. Karas, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Tiffany A. Karas, MD in 2024

By Volume:

By Affordability:

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

2013 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD in 2024

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Average Medicare Patient Data From 2012 - 2024

Average of Total of Conditions of Medicare patients treated by Dr. Tiffany A. Karas, MD From 2012 - 2024

Education & Training

Affiliations & Hospitals

Ratings & Reviews

General Payments

Ownership and Interest Payments

Biography

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