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Home > FL Providers > Internists & Internal Medicine Doctors

Dr. William M. Demarchi, MD

(10 Ratings)

Specializes in: Internal Medicine (Adult Medicine)

9878 Clint Moore Road Suite 202
Boca Raton, FL 33496

(561) 451-2454

Dr. William M. Demarchi, MD is an internist in Boca Raton, FL specializing in internal medicine (adult medicine).

Office Locations

9878 Clint Moore Road Suite 202
Boca Raton, FL 33496

(561) 451-2454

(561) 451-1223

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In The News

“PJPII will also be honoring two new inductees into its Alumni Hall of Fame: Stacie Nevadomski Berdan and William M DeMarchi, M.D. both of the Class of 1985.”—"Scalfanis named Honorary Chairpersons", South Florida Sun-Sentinel, November 2008

Noteworthy Medicare Patient Procedures Performed by Dr. William M. Demarchi, MD in 2023

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

Top 25%

By Volume:

nursing home care

In 2012, Dr. William M. Demarchi, MD performed more nursing home care procedures for Medicare patients than 75% of providers in related specialties within Florida.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL during 2012 were ultrasound (sonogram), blood draw, vascular procedures and cardiac procedures.

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

abdominal imaging	115
blood draw	199
cardiac procedures	115
doctor visit	1104
pelvic imaging	34
preventive care	13
stress testing	16
ultrasound (sonogram)	317
urologic procedures	16
vaccines	13
vascular procedures	137

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL during 2013 were ultrasound (sonogram), vascular procedures, cardiac procedures and blood draw.

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

abdominal imaging	64
blood draw	65
cardiac procedures	88
doctor visit	947
pelvic imaging	19
preventive care	24
ultrasound (sonogram)	233
vaccines	24
vascular procedures	100

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. William M. Demarchi, MD.

**Gender**
Male	151
Female	165

**Ethnicity**
Non-Hispanic White	288
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	165
From 75 to 84	88
85 and over	32
Less than 65	31

Conditions of Medicare patients treated by Dr. William M. Demarchi, MD in 2013

Hypertension	68
High Cholesterol	72
Stroke	4
Ischemic Heart Disease	46
Depression	19
Chronic Kidney Disease	16
Asthma	6
Osteoperosis	6
Atrial Fibrilation	7
Heart Failure	14
Chronic Obstructive Pulmonary Disease	9
Diabetes	28
Dementia	5
Cancer	10

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL during 2014 were ultrasound (sonogram), vascular procedures, cardiac procedures and abdominal imaging.

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

abdominal imaging	74
cardiac procedures	92
doctor visit	841
pelvic imaging	17
ultrasound (sonogram)	252
vascular procedures	103

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. William M. Demarchi, MD.

**Gender**
Male	145
Female	163

**Ethnicity**
Non-Hispanic White	276
Black	0
Hispanic	16
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	163
From 75 to 84	86
85 and over	26
Less than 65	33

Conditions of Medicare patients treated by Dr. William M. Demarchi, MD in 2014

Hypertension	67
High Cholesterol	72
Stroke	0
Ischemic Heart Disease	44
Depression	25
Chronic Kidney Disease	13
Asthma	5
Osteoperosis	6
Atrial Fibrilation	5
Heart Failure	10
Chronic Obstructive Pulmonary Disease	11
Diabetes	31
Dementia	6
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL during 2015 were ultrasound (sonogram), vascular procedures, cardiac procedures and abdominal imaging.

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

abdominal imaging	82
blood draw	31
cardiac procedures	95
doctor visit	881
pelvic imaging	26
ultrasound (sonogram)	276
vascular procedures	125

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. William M. Demarchi, MD.

**Gender**
Male	282
Female	310

**Ethnicity**
Non-Hispanic White	528
Black	0
Hispanic	26
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	338
From 75 to 84	132
85 and over	66
Less than 65	56

Conditions of Medicare patients treated by Dr. William M. Demarchi, MD in 2015

Hypertension	67
High Cholesterol	71
Stroke	0
Ischemic Heart Disease	42
Depression	24
Chronic Kidney Disease	21
Asthma	7
Osteoperosis	7
Atrial Fibrilation	5
Heart Failure	10
Chronic Obstructive Pulmonary Disease	9
Diabetes	38
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL during 2016 were ultrasound (sonogram), vascular procedures, abdominal imaging and cardiac procedures.

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

abdominal imaging	87
blood draw	25
cardiac procedures	68
doctor visit	708
pelvic imaging	31
ultrasound (sonogram)	230
vascular procedures	106

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. William M. Demarchi, MD.

**Gender**
Male	126
Female	155

**Ethnicity**
Non-Hispanic White	258
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	153
From 75 to 84	71
85 and over	32
Less than 65	25

Conditions of Medicare patients treated by Dr. William M. Demarchi, MD in 2016

Hypertension	73
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	48
Depression	21
Chronic Kidney Disease	26
Asthma	14
Osteoperosis	10
Atrial Fibrilation	6
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	51
Dementia	8
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL during 2017 were ultrasound (sonogram), vascular procedures, abdominal imaging and cardiac procedures.

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

abdominal imaging	95
blood draw	94
cardiac procedures	94
doctor visit	815
pelvic imaging	45
ultrasound (sonogram)	274
vascular procedures	130

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. William M. Demarchi, MD.

**Gender**
Male	127
Female	166

**Ethnicity**
Non-Hispanic White	271
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	167
From 75 to 84	78
85 and over	33
Less than 65	15

Conditions of Medicare patients treated by Dr. William M. Demarchi, MD in 2017

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	48
Depression	29
Chronic Kidney Disease	28
Asthma	4
Osteoperosis	8
Atrial Fibrilation	7
Heart Failure	12
Chronic Obstructive Pulmonary Disease	10
Diabetes	57
Dementia	9
Cancer	11

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL during 2018 were ultrasound (sonogram), vascular procedures, cardiac procedures and abdominal imaging.

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

abdominal imaging	35
cardiac procedures	52
doctor visit	762
pelvic imaging	23
ultrasound (sonogram)	118
vascular procedures	54

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. William M. Demarchi, MD.

**Gender**
Male	117
Female	153

**Ethnicity**
Non-Hispanic White	247
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	153
From 75 to 84	67
85 and over	33
Less than 65	17

Conditions of Medicare patients treated by Dr. William M. Demarchi, MD in 2018

Hypertension	73
High Cholesterol	75
Stroke	7
Ischemic Heart Disease	48
Depression	29
Chronic Kidney Disease	40
Asthma	5
Osteoperosis	9
Atrial Fibrilation	10
Heart Failure	14
Chronic Obstructive Pulmonary Disease	13
Diabetes	64
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL during 2019 were ultrasound (sonogram), cardiac procedures and vascular procedures.

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

cardiac procedures	34
doctor visit	659
ultrasound (sonogram)	62
vascular procedures	28

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. William M. Demarchi, MD.

**Gender**
Male	106
Female	142

**Ethnicity**
Non-Hispanic White	228
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	142
From 75 to 84	58
85 and over	31
Less than 65	17

Conditions of Medicare patients treated by Dr. William M. Demarchi, MD in 2019

Hypertension	71
High Cholesterol	75
Stroke	4
Ischemic Heart Disease	41
Depression	32
Chronic Kidney Disease	40
Asthma	4
Osteoperosis	10
Atrial Fibrilation	7
Heart Failure	13
Chronic Obstructive Pulmonary Disease	10
Diabetes	65
Dementia	12
Cancer	13

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL during 2020 were ultrasound (sonogram), vascular procedures and cardiac procedures.

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

cardiac procedures	20
doctor visit	450
ultrasound (sonogram)	45
vascular procedures	25

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. William M. Demarchi, MD.

**Gender**
Male	97
Female	124

**Ethnicity**
Non-Hispanic White	204
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	108
From 75 to 84	62
85 and over	38
Less than 65	13

Conditions of Medicare patients treated by Dr. William M. Demarchi, MD in 2020

Hypertension	71
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	36
Depression	30
Chronic Kidney Disease	43
Asthma	0
Osteoperosis	10
Atrial Fibrilation	8
Heart Failure	14
Chronic Obstructive Pulmonary Disease	9
Diabetes	48
Dementia	12
Cancer	16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL during 2021 were ultrasound (sonogram), cardiac procedures and vascular procedures.

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

cardiac procedures	18
doctor visit	445
ultrasound (sonogram)	33
vascular procedures	15

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. William M. Demarchi, MD.

**Gender**
Male	92
Female	120

**Ethnicity**
Non-Hispanic White	194
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	107
From 75 to 84	71
85 and over	22
Less than 65	12

Conditions of Medicare patients treated by Dr. William M. Demarchi, MD in 2021

Hypertension	68
High Cholesterol	75
Stroke	0
Ischemic Heart Disease	36
Depression	29
Chronic Kidney Disease	43
Asthma	6
Osteoperosis	16
Atrial Fibrilation	8
Heart Failure	11
Chronic Obstructive Pulmonary Disease	8
Diabetes	39
Dementia	9
Cancer	14

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL during 2022 were nursing home care.

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

doctor visit	408
nursing home care	603

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. William M. Demarchi, MD.

**Gender**
Male	244
Female	305

**Ethnicity**
Non-Hispanic White	386
Black	146
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	177
85 and over	111
Less than 65	56

Conditions of Medicare patients treated by Dr. William M. Demarchi, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	22
Ischemic Heart Disease	33
Depression	48
Chronic Kidney Disease	52
Asthma	7
Osteoperosis	19
Atrial Fibrilation	21
Heart Failure	30
Chronic Obstructive Pulmonary Disease	22
Diabetes	47
Dementia	38
Cancer	15

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. William M. Demarchi, MD for Medicare patients.

The highest averages for the top procedures that Dr. William M. Demarchi, MD treated as an internist in Boca Raton, FL were nursing home care, ultrasound (sonogram), blood draw and vascular procedures.

abdominal imaging	78
blood draw	82
cardiac procedures	67
doctor visit	729
nursing home care	603
pelvic imaging	27
preventive care	18
stress testing	16
ultrasound (sonogram)	184
urologic procedures	16
vaccines	18
vascular procedures	82

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. William M. Demarchi, MD.

**Gender**
Female	163
Male	135

**Ethnicity**
Black / African American	13
Asian / Pacific Islander	0
Non-Hispanic White	261
Hispanic	5
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	38
75 to 84	80
Less than 65	25
65 to 74	154

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

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

Hypertension	64
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	38
Depression	26
Chronic Kidney Disease	29
Asthma	5
Osteoporosis	9
Heart Failure	13
Chronic Obstructive Pulmonary Disease	10
Diabetes	42
Atrial Fibrillation	7
Dementia	10
Cancer	11

Education & Training

He has a state license in Florida.

Licensed In: Florida

Ratings & Reviews

Dr. William M. Demarchi, MD has a good overall rating with an average of 2.5 out of 5 stars based on 10 ratings. We collect ratings and reviews of Dr. William M. Demarchi, MD from all over the web to help you find the right in Boca Raton, FL.

2.5

Overall Rating

(10 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 1.0 2024-05-14

This office is a disaster. There is no follow through with referrals, prescriptions, bloodwork voicemails. You have to literally show up and stand at the desk for them to answer you. Dr. Perez used to be amazing but unfortunately passed away. Dr. Aroyo took his place and it’s worse than ever. My whole family is leaving the practice.

Overall Rating: 1.0 2016-12-07

The office is beautiful, the staff is friendly, the doctor is not good.  He does not take the time to speak with you. Once you get into the exam room it is as if you do not exist as a person.  Without even re-checking your blood pressure, he sits down and starts writing refill prescriptions for whatever you were currently taking. He dresses very disheveled. His dog is running back and forth. He pays more attention to his dog than to the patient. Then its "bye" and he's on the way to the next person.

I would never recommend him. I am looking for a new doctor.

General Payments

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

**Payments by Company**
Novo Nordisk Inc	$2,954 Tresiba $861	Ozempic $709	Victoza $555	RYBELSUS $451	Xultophy 100/3.6 $140	Other $238
Janssen Pharmaceuticals, Inc	$1,593 XARELTO $943	INVOKANA $523	SPRAVATO $71	INVOKAMET $40	No Product $16
AstraZeneca Pharmaceuticals LP	$1,337 FARXIGA $589	SYMBICORT $453	BEVESPI AEROSPHERE $91	BREZTRI $51	MOVANTIK $34	Other $118
Lilly USA, LLC	$895 TRULICITY $320	JARDIANCE $269	BASAGLAR $180	MOUNJARO $50	TRADJENTA $39	Other $37
Amarin Pharma Inc.	$780 Vascepa $780
Other	$6,025 VRAYLAR $654	Repatha $354	XIFAXAN $326	TRELEGY ELLIPTA $257	PRALUENT $249	Other $4,184

**Types of Payments**
Food and Beverage	$13,390
Education	$194

Biography

Dr. William Demarchi practices family medicine. His average rating from his patients is 2.5 stars (out of 5). He studied medicine at New York Medical College.