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Home > MI Providers > Internists & Internal Medicine Doctors

Dr. Riad Robert Hajjar, MD

(1 Rating)

Specializes in: Internal Medicine (Adult Medicine)

University of Damascus Faculty of Medicine

1201 Stone Street Suite #5
Port Huron, MI 48060

(810) 966-9556

Dr. Riad Robert Hajjar, MD is an internist in Port Huron, MI specializing in internal medicine (adult medicine). He graduated from University of Damascus Faculty of Medicine. Dr. Riad Robert Hajjar, MD is affiliated with McLaren Health Care and Lake Huron Medical Center.

Office Locations

Lake Huron Medical Center

1201 Stone Street Suite #5
Port Huron, MI 48060

(810) 966-9556

(810) 966-4898

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Noteworthy Medicare Patient Procedures Performed by Dr. Riad Robert Hajjar, MD in 2023

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

Top 5%

By Volume:

blood draw

phlebotomy for lab tests

By Affordability:

blood draw

blood draw for lab tests

chronic care

phlebotomy for lab tests

venipuncture

In 2023, among providers in related specialties within Michigan, Dr. Riad Robert Hajjar, MD performed more blood draw, and phlebotomy for lab tests procedures for Medicare patients than 95% of them and he also had a list price for blood draw, blood draw for lab tests, chronic care, phlebotomy for lab tests, and venipuncture (phlebotomy) 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 10%

By Volume:

A1C test

inpatient hospital care

lab tests

In 2023, Dr. Riad Robert Hajjar, MD performed more A1C test, inpatient hospital care (for patient admitted to hospital), and lab tests procedures for Medicare patients than 90% of providers in related specialties within Michigan.

Top 25%

By Volume:

complete blood count

urinalysis

By Affordability:

A1C test

blood count tests

blood tests

carotid duplex ultrasound

carotid ultrasound

complete blood count

duplex ultrasound

glycated protein test

vascular ultrasound

In 2012, among providers in related specialties within Michigan, Dr. Riad Robert Hajjar, MD performed more complete blood count (CBC), and urinalysis procedures for Medicare patients than 75% of them and he also had a list price for A1C test, blood count tests, blood tests, carotid duplex ultrasound, carotid ultrasound, complete blood count (CBC), duplex ultrasound, glycated protein test, and vascular ultrasound that was lower than the list prices billed to Medicare by 75% 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. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI during 2012 were lab tests, hospital care, inpatient care and preventive care.

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

blood draw	797
breast exam	15
cardiac procedures	74
cytology	16
diabetes management	288
doctor visit	2625
ear procedures	15
gynecologic pathology	16
gynecologic procedures	15
hospital care	2946
inpatient care	2795
lab tests	4138
nursing home care	63
outpatient care	151
preventive care	1135
thyroid function tests	1054
ultrasound (sonogram)	156
vaccines	221
vascular procedures	82

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI during 2013 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

blood draw	889
cardiac procedures	51
diabetes management	193
doctor visit	2314
ear procedures	18
hospital care	2652
inpatient care	2533
lab tests	3392
nursing home care	78
outpatient care	119
preventive care	859
removal of lesion (e.g. growth)	17
skin procedures	17
thyroid function tests	775
ultrasound (sonogram)	86
vaccines	230
vascular procedures	46

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Riad Robert Hajjar, MD.

**Gender**
Male	342
Female	475

**Ethnicity**
Non-Hispanic White	754
Black	30
Hispanic	21
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	271
From 75 to 84	230
85 and over	124
Less than 65	192

Conditions of Medicare patients treated by Dr. Riad Robert Hajjar, MD in 2013

Hypertension	75
High Cholesterol	73
Stroke	7
Ischemic Heart Disease	51
Depression	32
Chronic Kidney Disease	21
Asthma	17
Osteoperosis	10
Atrial Fibrilation	16
Heart Failure	25
Chronic Obstructive Pulmonary Disease	31
Diabetes	37
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI during 2014 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

blood draw	1097
breast exam	19
cardiac procedures	83
cytology	18
diabetes management	124
doctor visit	2226
ear procedures	30
gynecologic pathology	18
gynecologic procedures	19
hospital care	1805
inpatient care	1617
lab tests	2350
nursing home care	69
outpatient care	161
preventive care	511
removal of lesion (e.g. growth)	15
skin procedures	15
thyroid function tests	263
ultrasound (sonogram)	145
vaccines	200
vascular procedures	77

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Riad Robert Hajjar, MD.

**Gender**
Male	308
Female	421

**Ethnicity**
Non-Hispanic White	667
Black	37
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	242
From 75 to 84	202
85 and over	112
Less than 65	173

Conditions of Medicare patients treated by Dr. Riad Robert Hajjar, MD in 2014

Hypertension	75
High Cholesterol	72
Stroke	6
Ischemic Heart Disease	48
Depression	33
Chronic Kidney Disease	24
Asthma	17
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	25
Chronic Obstructive Pulmonary Disease	31
Diabetes	37
Dementia	14
Cancer	11

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI during 2015 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

blood draw	1030
breast exam	14
cardiac procedures	76
cytology	14
diabetes management	136
doctor visit	1940
ear procedures	21
gynecologic pathology	14
gynecologic procedures	14
hospital care	742
inpatient care	704
lab tests	1937
outpatient care	38
preventive care	328
removal of lesion (e.g. growth)	19
skin procedures	19
thyroid function tests	229
ultrasound (sonogram)	164
vaccines	178
vascular procedures	88

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Riad Robert Hajjar, MD.

**Gender**
Male	526
Female	692

**Ethnicity**
Non-Hispanic White	1122
Black	54
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	400
From 75 to 84	332
85 and over	186
Less than 65	300

Conditions of Medicare patients treated by Dr. Riad Robert Hajjar, MD in 2015

Hypertension	75
High Cholesterol	69
Stroke	7
Ischemic Heart Disease	46
Depression	36
Chronic Kidney Disease	23
Asthma	25
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	24
Chronic Obstructive Pulmonary Disease	31
Diabetes	34
Dementia	14
Cancer	12

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI during 2016 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

blood draw	1012
breast exam	18
cardiac procedures	69
cytology	18
diabetes management	305
doctor visit	1864
ear procedures	24
gynecologic pathology	18
gynecologic procedures	18
hospital care	1252
inpatient care	1123
lab tests	2504
outpatient care	112
preventive care	523
thyroid function tests	896
ultrasound (sonogram)	133
vaccines	189
vascular procedures	76

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Riad Robert Hajjar, MD.

**Gender**
Male	266
Female	386

**Ethnicity**
Non-Hispanic White	597
Black	30
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	208
From 75 to 84	177
85 and over	102
Less than 65	165

Conditions of Medicare patients treated by Dr. Riad Robert Hajjar, MD in 2016

Hypertension	75
High Cholesterol	70
Stroke	7
Ischemic Heart Disease	53
Depression	34
Chronic Kidney Disease	33
Asthma	37
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	25
Chronic Obstructive Pulmonary Disease	34
Diabetes	35
Dementia	18
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI during 2017 were lab tests, hospital care, inpatient care and preventive care.

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

blood draw	815
breast exam	18
cardiac procedures	58
chronic care	28
cytology	18
diabetes management	301
doctor visit	2027
gynecologic pathology	18
gynecologic procedures	18
hospital care	1504
inpatient care	1388
lab tests	3920
outpatient care	92
preventive care	1276
thyroid function tests	676
ultrasound (sonogram)	121
vaccines	165
vascular procedures	63

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Riad Robert Hajjar, MD.

**Gender**
Male	321
Female	429

**Ethnicity**
Non-Hispanic White	685
Black	39
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	250
From 75 to 84	222
85 and over	100
Less than 65	178

Conditions of Medicare patients treated by Dr. Riad Robert Hajjar, MD in 2017

Hypertension	75
High Cholesterol	73
Stroke	8
Ischemic Heart Disease	55
Depression	35
Chronic Kidney Disease	38
Asthma	17
Osteoperosis	7
Atrial Fibrilation	15
Heart Failure	26
Chronic Obstructive Pulmonary Disease	33
Diabetes	35
Dementia	19
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI during 2018 were lab tests, hospital care, inpatient care and thyroid function tests.

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

blood draw	634
breast exam	11
cardiac procedures	37
cytology	11
diabetes management	278
doctor visit	2211
ear procedures	21
gynecologic pathology	11
gynecologic procedures	11
hospital care	2023
inpatient care	1806
lab tests	4208
nursing home care	155
outpatient care	203
preventive care	1108
removal of lesion (e.g. growth)	15
skin procedures	15
thyroid function tests	1334
ultrasound (sonogram)	73
vaccines	138
vascular procedures	36

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Riad Robert Hajjar, MD.

**Gender**
Male	350
Female	512

**Ethnicity**
Non-Hispanic White	782
Black	48
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	280
From 75 to 84	250
85 and over	117
Less than 65	215

Conditions of Medicare patients treated by Dr. Riad Robert Hajjar, MD in 2018

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	55
Depression	35
Chronic Kidney Disease	40
Asthma	17
Osteoperosis	7
Atrial Fibrilation	14
Heart Failure	27
Chronic Obstructive Pulmonary Disease	34
Diabetes	39
Dementia	20
Cancer	13

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI during 2019 were lab tests, hospital care, inpatient care and thyroid function tests.

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

abdominal imaging	18
blood draw	505
breast exam	15
cardiac procedures	46
cytology	15
diabetes management	344
doctor visit	2396
ear procedures	21
gynecologic pathology	15
gynecologic procedures	15
hospital care	2334
inpatient care	2082
lab tests	5303
nursing home care	337
outpatient care	237
pelvic imaging	18
preventive care	1318
thyroid function tests	1621
ultrasound (sonogram)	123
vaccines	99
vascular procedures	77

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Riad Robert Hajjar, MD.

**Gender**
Male	301
Female	415

**Ethnicity**
Non-Hispanic White	655
Black	32
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	252
From 75 to 84	203
85 and over	114
Less than 65	147

Conditions of Medicare patients treated by Dr. Riad Robert Hajjar, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	54
Depression	32
Chronic Kidney Disease	45
Asthma	16
Osteoperosis	9
Atrial Fibrilation	16
Heart Failure	28
Chronic Obstructive Pulmonary Disease	35
Diabetes	38
Dementia	20
Cancer	12

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI during 2020 were lab tests, hospital care, inpatient care and thyroid function tests.

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

blood draw	570
cardiac procedures	29
diabetes management	306
doctor visit	1718
ear procedures	16
hospital care	1358
inpatient care	1247
lab tests	3163
nursing home care	132
outpatient care	98
preventive care	874
thyroid function tests	921
ultrasound (sonogram)	58
vaccines	116
vascular procedures	29

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Riad Robert Hajjar, MD.

**Gender**
Male	255
Female	330

**Ethnicity**
Non-Hispanic White	532
Black	26
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	221
From 75 to 84	153
85 and over	98
Less than 65	113

Conditions of Medicare patients treated by Dr. Riad Robert Hajjar, MD in 2020

Hypertension	75
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	49
Depression	32
Chronic Kidney Disease	44
Asthma	13
Osteoperosis	6
Atrial Fibrilation	12
Heart Failure	23
Chronic Obstructive Pulmonary Disease	26
Diabetes	38
Dementia	19
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI during 2021 were lab tests, hospital care, inpatient care and thyroid function tests.

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

blood draw	574
breast exam	11
cardiac procedures	38
cytology	11
diabetes management	287
doctor visit	1470
ear procedures	17
gynecologic pathology	11
gynecologic procedures	11
hospital care	1533
inpatient care	1454
lab tests	2958
nursing home care	107
outpatient care	67
preventive care	757
thyroid function tests	954
ultrasound (sonogram)	77
vascular procedures	39

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Riad Robert Hajjar, MD.

**Gender**
Male	217
Female	270

**Ethnicity**
Non-Hispanic White	450
Black	15
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	185
From 75 to 84	141
85 and over	84
Less than 65	77

Conditions of Medicare patients treated by Dr. Riad Robert Hajjar, MD in 2021

Hypertension	75
High Cholesterol	75
Stroke	5
Ischemic Heart Disease	54
Depression	30
Chronic Kidney Disease	41
Asthma	13
Osteoperosis	6
Atrial Fibrilation	16
Heart Failure	25
Chronic Obstructive Pulmonary Disease	28
Diabetes	40
Dementia	19
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI during 2022 were lab tests, hospital care, inpatient care and blood draw.

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

blood draw	723
cardiac procedures	15
chronic care	21
diabetes management	158
doctor visit	1178
hospital care	1174
inpatient care	1066
lab tests	1580
nursing home care	110
outpatient care	108
preventive care	467
thyroid function tests	591
ultrasound (sonogram)	32
vascular procedures	17

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Riad Robert Hajjar, MD.

**Gender**
Male	178
Female	244

**Ethnicity**
Non-Hispanic White	389
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	155
From 75 to 84	127
85 and over	78
Less than 65	62

Conditions of Medicare patients treated by Dr. Riad Robert Hajjar, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	36
Depression	26
Chronic Kidney Disease	18
Asthma	15
Osteoperosis	9
Atrial Fibrilation	24
Heart Failure	20
Chronic Obstructive Pulmonary Disease	32
Diabetes	36
Dementia	10
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. Riad Robert Hajjar, MD for Medicare patients.

The highest averages for the top procedures that Dr. Riad Robert Hajjar, MD treated as an internist in Port Huron, MI were lab tests, hospital care, inpatient care and thyroid function tests.

abdominal imaging	18
blood draw	786
breast exam	15
cardiac procedures	52
chronic care	24
cytology	15
diabetes management	247
doctor visit	1997
ear procedures	20
gynecologic pathology	15
gynecologic procedures	15
hospital care	1756
inpatient care	1619
lab tests	3223
nursing home care	131
outpatient care	126
pelvic imaging	18
preventive care	832
removal of lesion (e.g. growth)	16
skin procedures	16
thyroid function tests	846
ultrasound (sonogram)	106
vaccines	170
vascular procedures	57

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. Riad Robert Hajjar, MD.

**Gender**
Male	278
Female	379

**Ethnicity**
Black / African American	28
Asian / Pacific Islander	0
Non-Hispanic White	603
Native American / Alaskan Native	0
Hispanic	5
Other	0

**Age**
75 to 84	185
85 and over	101
Less than 65	147
65 to 74	224

Average of Total of Conditions of Medicare patients treated by Dr. Riad Robert Hajjar, MD From 2012 - 2022

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

Hypertension	68
High Cholesterol	66
Stroke	6
Ischemic Heart Disease	45
Depression	29
Chronic Kidney Disease	29
Asthma	17
Osteoporosis	7
Heart Failure	22
Chronic Obstructive Pulmonary Disease	28
Diabetes	33
Atrial Fibrillation	14
Dementia	15
Cancer	10

Education & Training

Dr. Riad Robert Hajjar, MD graduated from University of Damascus Faculty of Medicine. He completed residency at Hurley Medical Center. He is certified by the Board Certification: Internal Medicine and has a state license in Michigan.

Medical School: University of Damascus Faculty of Medicine

Residency: Hurley Medical Center (1997)

Board Certification: Board Certification: Internal Medicine

Licensed In: Michigan

Affiliations & Hospitals

Dr. Riad Robert Hajjar, MD is associated with these hospitals and organizations:

McLaren Health Care

Lake Huron Medical Center

Ratings & Reviews

Dr. Riad Robert Hajjar, MD has an exceptional overall rating with an average of 5.0 out of 5 stars based on 1 ratings. We collect ratings and reviews of Dr. Riad Robert Hajjar, MD from all over the web to help you find the right in Port Huron, MI.

Overall Rating

(1 Rating)

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Reviews Left On DocSpot

Overall Rating: 5.0 2025-02-19

He does blood work on me every 3 months

General Payments

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

**Payments by Company**
Boehringer Ingelheim Pharmaceuticals, Inc.	$1,088 Pradaxa $470	JARDIANCE $448	TRADJENTA $39	TRIJARDY XR $34	GLYXAMBI $24	Other $73
SANOFI-AVENTIS U.S. LLC	$988 TOUJEO $457	SOLIQUA 100/33 $266	SOLIQUA $126	LANTUS $111	PRALUENT $29
Pfizer Inc.	$938 ELIQUIS $298	COLOGUARD $262	NURTEC ODT $122	LYRICA $88	COLOGUARD DNA CAPTURE REAGENTS $44	Other $124
Janssen Pharmaceuticals, Inc	$791 XARELTO $357	INVOKANA $232	INVOKAMET $196	$6
Amgen Inc.	$766 Repatha $403	Prolia $122	Otezla $121	Aimovig $121
Other	$5,627 ENTRESTO $520	ELIQUIS $352	MOVANTIK $284	FARXIGA $247	TRELEGY ELLIPTA $199	Other $4,025

**Types of Payments**
Food and Beverage	$9,938
Education	$260

Biography

Dr. Riad Hajjar is professionally affiliated with Lake Huron Medical Center and McLaren Health Care. He studied medicine at the University of Damascus Faculty of Medicine. Dr. Hajjar's training includes a residency program at Hurley Medical Center.