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Home > CA Providers > Internists & Internal Medicine Doctors

Dr. Michael Chai, MD

(Dr. Michael Chai, M.D.)

(6 Ratings)

Specializes in: Internal Medicine (Adult Medicine)

490 N. Mountain Avenue Suite B
Upland, CA 91786

(909) 920-6698

Dr. Michael Chai, MD is an internist in Upland, CA specializing in internal medicine (adult medicine). Dr. Michael Chai, MD is affiliated with Casa Colina Hospital and Centers for Healthcare.

Office Locations

Casa Colina Hospital and Centers for Healthcare

490 N. Mountain Avenue Suite B
Upland, CA 91786

(909) 920-6698

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Noteworthy Medicare Patient Procedures Performed by Dr. Michael Chai, MD in 2023

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

Top 5%

By Affordability:

ear procedures

ear wax removal

impacted ear wax removal

In 2023, Dr. Michael Chai, MD had a list price for ear procedures, ear wax removal, and impacted ear wax removal that was lower than the list prices billed to Medicare by 95% of providers in related specialties within California. 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. Michael Chai, MD treated as an internist in Upland, CA during 2012 were hospital care, inpatient care, nursing home care and blood draw.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

blood draw	200
cytology	12
doctor visit	3053
ear procedures	14
gynecologic pathology	12
hospital care	1880
inpatient care	1880
lab tests	13
musculoskeletal imaging	29
nursing home care	1042
preventive care	196
vaccines	184
X-rays	29

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA during 2013 were hospital care, inpatient care, nursing home care and preventive care.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

doctor visit	2811
hospital care	1617
inpatient care	1617
lab tests	40
musculoskeletal imaging	15
nursing home care	639
preventive care	73
vaccines	49
X-rays	15

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	365
Female	546

**Ethnicity**
Non-Hispanic White	572
Black	61
Hispanic	159
Asian	100
Other	0
Native American	0

**Age**
From 65 to 74	336
From 75 to 84	298
85 and over	167
Less than 65	110

Conditions of Medicare patients treated by Dr. Michael Chai, MD in 2013

Hypertension	75
High Cholesterol	69
Stroke	11
Ischemic Heart Disease	44
Depression	22
Chronic Kidney Disease	36
Asthma	10
Osteoperosis	18
Atrial Fibrilation	14
Heart Failure	30
Chronic Obstructive Pulmonary Disease	23
Diabetes	45
Dementia	19
Cancer	13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA during 2014 were hospital care, inpatient care, nursing home care and preventive care.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

diagnostic procedures	14
doctor visit	2114
ear procedures	33
hospital care	921
inpatient care	921
lab tests	40
musculoskeletal imaging	30
nursing home care	500
preventive care	128
vaccines	113
X-rays	30

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	321
Female	521

**Ethnicity**
Non-Hispanic White	521
Black	63
Hispanic	176
Asian	70
Other	0
Native American	0

**Age**
From 65 to 74	294
From 75 to 84	254
85 and over	196
Less than 65	98

Conditions of Medicare patients treated by Dr. Michael Chai, MD in 2014

Hypertension	75
High Cholesterol	72
Stroke	9
Ischemic Heart Disease	48
Depression	25
Chronic Kidney Disease	39
Asthma	10
Osteoperosis	16
Atrial Fibrilation	16
Heart Failure	36
Chronic Obstructive Pulmonary Disease	22
Diabetes	47
Dementia	22
Cancer	14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA during 2015 were hospital care, inpatient care, nursing home care and preventive care.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

doctor visit	1920
ear procedures	25
hospital care	1625
inpatient care	1625
lab tests	24
nursing home care	630
preventive care	84
vaccines	84

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	978
Female	1444

**Ethnicity**
Non-Hispanic White	1520
Black	198
Hispanic	482
Asian	184
Other	0
Native American	0

**Age**
From 65 to 74	884
From 75 to 84	728
85 and over	494
Less than 65	316

Conditions of Medicare patients treated by Dr. Michael Chai, MD in 2015

Hypertension	75
High Cholesterol	68
Stroke	11
Ischemic Heart Disease	54
Depression	27
Chronic Kidney Disease	45
Asthma	22
Osteoperosis	13
Atrial Fibrilation	16
Heart Failure	40
Chronic Obstructive Pulmonary Disease	27
Diabetes	43
Dementia	22
Cancer	14

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA during 2016 were hospital care, inpatient care, preventive care and vaccines.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

doctor visit	1396
hospital care	3289
inpatient care	3289
preventive care	34
vaccines	34

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	831
Female	1270

**Ethnicity**
Non-Hispanic White	1174
Black	197
Hispanic	520
Asian	165
Other	0
Native American	0

**Age**
From 65 to 74	714
From 75 to 84	652
85 and over	443
Less than 65	292

Conditions of Medicare patients treated by Dr. Michael Chai, MD in 2016

Hypertension	75
High Cholesterol	67
Stroke	11
Ischemic Heart Disease	60
Depression	28
Chronic Kidney Disease	55
Asthma	31
Osteoperosis	13
Atrial Fibrilation	18
Heart Failure	45
Chronic Obstructive Pulmonary Disease	29
Diabetes	48
Dementia	25
Cancer	14

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA during 2017 were hospital care, inpatient care, nursing home care and ear procedures.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

doctor visit	1332
ear procedures	20
hospital care	473
inpatient care	473
nursing home care	53
preventive care	17
vaccines	17

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	88
Female	132

**Ethnicity**
Non-Hispanic White	172
Black	0
Hispanic	14
Asian	21
Other	0
Native American	0

**Age**
From 65 to 74	83
From 75 to 84	0
85 and over	65
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael Chai, MD in 2017

Hypertension	74
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	45
Depression	14
Chronic Kidney Disease	34
Asthma	5
Osteoperosis	13
Atrial Fibrilation	12
Heart Failure	26
Chronic Obstructive Pulmonary Disease	19
Diabetes	46
Dementia	21
Cancer	18

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA during 2018 were hospital care, inpatient care, preventive care and vaccines.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

doctor visit	1236
ear procedures	14
hospital care	499
inpatient care	499
preventive care	38
vaccines	38

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	86
Female	141

**Ethnicity**
Non-Hispanic White	183
Black	0
Hispanic	17
Asian	15
Other	0
Native American	0

**Age**
From 65 to 74	81
From 75 to 84	72
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael Chai, MD in 2018

Hypertension	72
High Cholesterol	75
Stroke	10
Ischemic Heart Disease	45
Depression	18
Chronic Kidney Disease	30
Asthma	7
Osteoperosis	15
Atrial Fibrilation	15
Heart Failure	29
Chronic Obstructive Pulmonary Disease	14
Diabetes	38
Dementia	27
Cancer	20

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA during 2019 were hospital care, inpatient care, nursing home care and ear procedures.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

doctor visit	1733
ear procedures	25
hospital care	410
inpatient care	410
nursing home care	42
preventive care	22
vaccines	22

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	211
Female	306

**Ethnicity**
Non-Hispanic White	346
Black	38
Hispanic	84
Asian	36
Other	13
Native American	0

**Age**
From 65 to 74	189
From 75 to 84	151
85 and over	129
Less than 65	48

Conditions of Medicare patients treated by Dr. Michael Chai, MD in 2019

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	52
Depression	25
Chronic Kidney Disease	47
Asthma	8
Osteoperosis	14
Atrial Fibrilation	17
Heart Failure	37
Chronic Obstructive Pulmonary Disease	24
Diabetes	46
Dementia	23
Cancer	16

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA during 2020 were hospital care, inpatient care, nursing home care and preventive care.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

doctor visit	4465
hospital care	342
inpatient care	342
nursing home care	53
preventive care	33
vaccines	33

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	809
Female	1097

**Ethnicity**
Non-Hispanic White	1076
Black	163
Hispanic	467
Asian	159
Other	0
Native American	0

**Age**
From 65 to 74	701
From 75 to 84	604
85 and over	349
Less than 65	252

Conditions of Medicare patients treated by Dr. Michael Chai, MD in 2020

Hypertension	75
High Cholesterol	66
Stroke	11
Ischemic Heart Disease	54
Depression	24
Chronic Kidney Disease	54
Asthma	9
Osteoperosis	11
Atrial Fibrilation	17
Heart Failure	40
Chronic Obstructive Pulmonary Disease	22
Diabetes	46
Dementia	25
Cancer	14

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA during 2021 were hospital care, inpatient care, preventive care and vaccines.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

aspiration	12
doctor visit	4180
ear procedures	12
hospital care	239
injections	12
inpatient care	239
preventive care	32
vaccines	32

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	867
Female	1098

**Ethnicity**
Non-Hispanic White	1123
Black	159
Hispanic	471
Asian	155
Other	0
Native American	0

**Age**
From 65 to 74	782
From 75 to 84	604
85 and over	353
Less than 65	226

Conditions of Medicare patients treated by Dr. Michael Chai, MD in 2021

Hypertension	75
High Cholesterol	69
Stroke	11
Ischemic Heart Disease	50
Depression	23
Chronic Kidney Disease	53
Asthma	8
Osteoperosis	11
Atrial Fibrilation	16
Heart Failure	38
Chronic Obstructive Pulmonary Disease	18
Diabetes	47
Dementia	22
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA during 2022 were hospital care, inpatient care, preventive care and vaccines.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

aspiration	25
doctor visit	4640
ear procedures	16
hospital care	150
injections	25
inpatient care	150
preventive care	29
vaccines	29

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	958
Female	1322

**Ethnicity**
Non-Hispanic White	1272
Black	165
Hispanic	588
Asian	190
Other	0
Native American	0

**Age**
From 65 to 74	855
From 75 to 84	711
85 and over	456
Less than 65	258

Conditions of Medicare patients treated by Dr. Michael Chai, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	20
Ischemic Heart Disease	40
Depression	24
Chronic Kidney Disease	40
Asthma	11
Osteoperosis	17
Atrial Fibrilation	27
Heart Failure	34
Chronic Obstructive Pulmonary Disease	22
Diabetes	48
Dementia	17
Cancer	18

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA during 2023 were hospital care, inpatient care, ear procedures and aspiration.

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

aspiration	20
doctor visit	1401
ear procedures	28
hospital care	154
injections	20
inpatient care	154
preventive care	16
vaccines	16

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	147
Female	193

**Ethnicity**
Non-Hispanic White	284
Black	0
Hispanic	16
Asian	29
Other	0
Native American	0

**Age**
From 65 to 74	141
From 75 to 84	118
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Michael Chai, MD in 2023

Hypertension	75
High Cholesterol	75
Stroke	12
Ischemic Heart Disease	32
Depression	14
Chronic Kidney Disease	17
Asthma	9
Osteoperosis	14
Atrial Fibrilation	20
Heart Failure	19
Chronic Obstructive Pulmonary Disease	12
Diabetes	44
Dementia	10
Cancer	22

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2023

Volume of procedures performed by Dr. Michael Chai, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael Chai, MD treated as an internist in Upland, CA were inpatient care, hospital care, nursing home care and blood draw.

aspiration	19
blood draw	200
cytology	12
diagnostic procedures	14
doctor visit	2523
ear procedures	20
gynecologic pathology	12
hospital care	966
injections	19
inpatient care	966
lab tests	29
musculoskeletal imaging	24
nursing home care	422
preventive care	58
vaccines	54
X-rays	24

Average Medicare Patient Data From 2012 - 2023

Information about Medicare patients treated by Dr. Michael Chai, MD.

**Gender**
Male	471
Female	672

**Ethnicity**
Black / African American	87
Asian / Pacific Islander	93
Non-Hispanic White	686
Hispanic	249
Native American / Alaskan Native	0
Other	1

**Age**
75 to 84	349
85 and over	221
Less than 65	133
65 to 74	421

Average of Total of Conditions of Medicare patients treated by Dr. Michael Chai, MD From 2012 - 2023

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

Hypertension	68
High Cholesterol	65
Stroke	10
Ischemic Heart Disease	43
Depression	20
Chronic Kidney Disease	37
Asthma	10
Osteoporosis	12
Heart Failure	31
Chronic Obstructive Pulmonary Disease	19
Diabetes	41
Atrial Fibrillation	15
Cancer	14
Dementia	19

Education & Training

He has a state license in California.

Licensed In: California

Affiliations & Hospitals

Dr. Michael Chai, MD is associated with these hospitals and organizations:

Casa Colina Hospital and Centers for Healthcare

Ratings & Reviews

Dr. Michael Chai, MD has a high overall rating with an average of 4.33 out of 5 stars based on 6 ratings. We collect ratings and reviews of Dr. Michael Chai, MD from all over the web to help you find the right in Upland, CA.

4.33

Overall Rating

(6 Ratings)

Leave a Review

Reviews Left On DocSpot

Overall Rating: 1.0 2024-08-08

It says they accept new patients so I called them today.  They only accept new patients if you pay $3,400 per year - what a joke and misrepresentation.

General Payments

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

**Payments by Company**
Lilly USA, LLC	$771 JARDIANCE $259	MOUNJARO $162	BASAGLAR $161	GLYXAMBI $73	ZEPBOUND $30	Other $85
GlaxoSmithKline, LLC.	$753 TRELEGY ELLIPTA $162	SHINGRIX $132	BREO $123	ANORO ELLIPTA $119	AREXVY $89	Other $127
Amgen Inc.	$501 Repatha $448	Prolia $53
Janssen Pharmaceuticals, Inc	$362 INVOKANA $210	XARELTO $113	$39
Astellas Pharma US Inc	$349 Vesicare $117	Myrbetriq $71	Veozah $60	$100
Other	$3,741 Belviq $243	Tecnis 1-piece IOL $170	VIIBRYD $167	EPIC $146	TOUJEO $133	Other $2,882

**Types of Payments**
Food and Beverage	$6,242
Education	$234

Research Payments

Dr. Michael Chai, MD has received 1 research payments totaling $125.

Biography

Dr. Michael Chai is an endocrinology specialist in Upland, CA. He is professionally affiliated with Casa Colina Hospital and Centers for Healthcare. Dr. Chai studied medicine at Eastern Virginia Medical School. Patient ratings for Dr. Chai average 4.5 stars (out of 5).