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Home > WA Providers > Primary Care Physicians

Dr. Michael Oliver Zamora Roxas, MD

Accepting New Patients

(309 Ratings)

Specializes in: Primary Care, Internal Medicine (Adult Medicine) and Emergency Medicine

St. Luke's College of Medicine, William H. Quasha Memorial

1608 S J Street 2nd & 3rd Floor
Tacoma, WA 98405

(253) 274-7503

Dr. Michael Oliver Zamora Roxas, MD is a primary care doctor in Tacoma, WA specializing in primary care, internal medicine (adult medicine) and emergency medicine. He graduated from St. Luke's College of Medicine, William H. Quasha Memorial. Dr. Michael Oliver Zamora Roxas, MD is affiliated with Virginia Mason Franciscan Health.

Office Locations

1608 S J Street 2nd & 3rd Floor
Tacoma, WA 98405

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Noteworthy Medicare Patient Procedures Performed by Dr. Michael Oliver Zamora Roxas, MD in 2023

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

Top 25%

By Volume:

intensive behavioral therapy for obesity

mental health therapy

In 2012, Dr. Michael Oliver Zamora Roxas, MD performed more intensive behavioral therapy (IBT) for obesity, and mental health therapy procedures for Medicare patients than 75% of providers in related specialties within Washington.

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Michael Oliver Zamora Roxas, MD treated as a primary care doctor in Tacoma, WA during 2015 were lab tests, blood draw, preventive care and vaccines.

Volume of procedures performed by Dr. Michael Oliver Zamora Roxas, MD for Medicare patients.

blood draw	139
diabetes management	35
doctor visit	264
hospital care	56
inpatient care	56
lab tests	309
nursing home care	52
preventive care	132
vaccines	60

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD.

**Gender**
Male	220
Female	252

**Age**
From 65 to 74	138
From 75 to 84	176
85 and over	118
Less than 65	40

Conditions of Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD in 2015

Hypertension	75
High Cholesterol	63
Stroke	5
Ischemic Heart Disease	31
Depression	16
Chronic Kidney Disease	30
Asthma	14
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	29
Chronic Obstructive Pulmonary Disease	27
Diabetes	36
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Michael Oliver Zamora Roxas, MD treated as a primary care doctor in Tacoma, WA during 2016 were lab tests, blood draw, hospital care and preventive care.

Volume of procedures performed by Dr. Michael Oliver Zamora Roxas, MD for Medicare patients.

aspiration	22
blood draw	399
diabetes management	73
doctor visit	707
hospital care	259
injections	22
inpatient care	217
lab tests	747
nursing home care	145
outpatient care	42
preventive care	257
vaccines	77

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD.

**Gender**
Male	166
Female	208

**Age**
From 65 to 74	120
From 75 to 84	125
85 and over	88
Less than 65	41

Conditions of Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD in 2016

Hypertension	74
High Cholesterol	63
Stroke	8
Ischemic Heart Disease	39
Depression	19
Chronic Kidney Disease	34
Asthma	35
Osteoperosis	11
Atrial Fibrilation	22
Heart Failure	29
Chronic Obstructive Pulmonary Disease	33
Diabetes	32
Dementia	15
Cancer	11

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Michael Oliver Zamora Roxas, MD treated as a primary care doctor in Tacoma, WA during 2017 were lab tests, blood draw, preventive care and hospital care.

Volume of procedures performed by Dr. Michael Oliver Zamora Roxas, MD for Medicare patients.

aspiration	16
blood draw	447
diabetes management	114
doctor visit	728
hospital care	298
injections	16
inpatient care	243
lab tests	754
nursing home care	119
outpatient care	55
preventive care	358
vaccines	109

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD.

**Gender**
Male	171
Female	203

**Age**
From 65 to 74	121
From 75 to 84	126
85 and over	92
Less than 65	35

Conditions of Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD in 2017

Hypertension	75
High Cholesterol	64
Stroke	11
Ischemic Heart Disease	42
Depression	21
Chronic Kidney Disease	37
Asthma	6
Osteoperosis	13
Atrial Fibrilation	16
Heart Failure	29
Chronic Obstructive Pulmonary Disease	29
Diabetes	30
Dementia	18
Cancer	13

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Michael Oliver Zamora Roxas, MD treated as a primary care doctor in Tacoma, WA during 2018 were lab tests, blood draw, preventive care and hospital care.

Volume of procedures performed by Dr. Michael Oliver Zamora Roxas, MD for Medicare patients.

aspiration	14
blood draw	280
diabetes management	58
doctor visit	742
hospital care	170
injections	14
inpatient care	153
lab tests	467
nursing home care	86
outpatient care	17
preventive care	239
vaccines	78

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD.

**Gender**
Male	225
Female	268

**Ethnicity**
Non-Hispanic White	444
Black	27
Hispanic	11
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	175
From 75 to 84	148
85 and over	98
Less than 65	72

Conditions of Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD in 2018

Hypertension	75
High Cholesterol	65
Stroke	10
Ischemic Heart Disease	41
Depression	27
Chronic Kidney Disease	39
Asthma	6
Osteoperosis	9
Atrial Fibrilation	19
Heart Failure	32
Chronic Obstructive Pulmonary Disease	28
Diabetes	36
Dementia	16
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Michael Oliver Zamora Roxas, MD treated as a primary care doctor in Tacoma, WA during 2019 were preventive care, vaccines, lab tests and diabetes management.

Volume of procedures performed by Dr. Michael Oliver Zamora Roxas, MD for Medicare patients.

aspiration	17
diabetes management	23
doctor visit	1114
injections	17
lab tests	47
preventive care	194
vaccines	104

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD.

**Gender**
Male	184
Female	204

**Ethnicity**
Non-Hispanic White	287
Black	49
Hispanic	0
Asian	25
Other	0
Native American	0

**Age**
From 65 to 74	151
From 75 to 84	94
85 and over	57
Less than 65	86

Conditions of Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD in 2019

Hypertension	75
High Cholesterol	58
Stroke	9
Ischemic Heart Disease	40
Depression	32
Chronic Kidney Disease	47
Asthma	7
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	35
Chronic Obstructive Pulmonary Disease	20
Diabetes	36
Dementia	15
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Michael Oliver Zamora Roxas, MD treated as a primary care doctor in Tacoma, WA during 2020 were preventive care, vaccines, weight management and mental health therapy.

Volume of procedures performed by Dr. Michael Oliver Zamora Roxas, MD for Medicare patients.

aspiration	18
doctor visit	855
injections	18
mental health therapy	41
preventive care	83
vaccines	70
weight management	41

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD.

**Gender**
Male	172
Female	175

**Ethnicity**
Non-Hispanic White	257
Black	38
Hispanic	0
Asian	24
Other	0
Native American	0

**Age**
From 65 to 74	140
From 75 to 84	77
85 and over	44
Less than 65	86

Conditions of Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD in 2020

Hypertension	75
High Cholesterol	60
Stroke	3
Ischemic Heart Disease	40
Depression	33
Chronic Kidney Disease	45
Asthma	7
Osteoperosis	6
Atrial Fibrilation	15
Heart Failure	34
Chronic Obstructive Pulmonary Disease	22
Diabetes	37
Dementia	13
Cancer	7

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Michael Oliver Zamora Roxas, MD treated as a primary care doctor in Tacoma, WA during 2021 were preventive care, vaccines, weight management and mental health therapy.

Volume of procedures performed by Dr. Michael Oliver Zamora Roxas, MD for Medicare patients.

aspiration	14
doctor visit	893
injections	14
mental health therapy	78
preventive care	121
vaccines	121
weight management	78

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD.

**Gender**
Male	167
Female	162

**Ethnicity**
Non-Hispanic White	249
Black	34
Hispanic	17
Asian	18
Other	0
Native American	0

**Age**
From 65 to 74	144
From 75 to 84	81
85 and over	43
Less than 65	61

Conditions of Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD in 2021

Hypertension	74
High Cholesterol	67
Stroke	4
Ischemic Heart Disease	40
Depression	32
Chronic Kidney Disease	45
Asthma	7
Osteoperosis	9
Atrial Fibrilation	14
Heart Failure	31
Chronic Obstructive Pulmonary Disease	18
Diabetes	36
Dementia	14
Cancer	9

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Michael Oliver Zamora Roxas, MD treated as a primary care doctor in Tacoma, WA during 2022 were weight management, mental health therapy, preventive care and lab tests.

Volume of procedures performed by Dr. Michael Oliver Zamora Roxas, MD for Medicare patients.

aspiration	16
diabetes management	32
doctor visit	859
ear procedures	16
injections	16
lab tests	32
mental health therapy	56
preventive care	46
vaccines	14
weight management	56

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD.

**Gender**
Male	156
Female	161

**Ethnicity**
Non-Hispanic White	241
Black	28
Hispanic	17
Asian	17
Other	0
Native American	0

**Age**
From 65 to 74	132
From 75 to 84	94
85 and over	44
Less than 65	47

Conditions of Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD in 2022

Hypertension	75
High Cholesterol	75
Stroke	9
Ischemic Heart Disease	34
Depression	26
Chronic Kidney Disease	36
Asthma	11
Osteoperosis	14
Atrial Fibrilation	24
Heart Failure	27
Chronic Obstructive Pulmonary Disease	19
Diabetes	30
Dementia	10
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2015 - 2022

Volume of procedures performed by Dr. Michael Oliver Zamora Roxas, MD for Medicare patients.

The highest averages for the top procedures that Dr. Michael Oliver Zamora Roxas, MD treated as a primary care doctor in Tacoma, WA were lab tests, blood draw, hospital care and preventive care.

aspiration	16
blood draw	316
diabetes management	55
doctor visit	770
ear procedures	16
hospital care	195
injections	16
inpatient care	167
lab tests	392
mental health therapy	58
nursing home care	100
outpatient care	38
preventive care	178
vaccines	79
weight management	58

Average Medicare Patient Data From 2015 - 2022

Information about Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD.

**Gender**
Male	182
Female	204

**Ethnicity**
Black / African American	22
Asian / Pacific Islander	10
Non-Hispanic White	184
Native American / Alaskan Native	0
Hispanic	5
Other	0

**Age**
75 to 84	115
85 and over	73
Less than 65	58
65 to 74	140

Average of Total of Conditions of Medicare patients treated by Dr. Michael Oliver Zamora Roxas, MD From 2015 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. Michael Oliver Zamora Roxas, MD treated were hypertension, high cholesterol, chronic kidney disease and ischemic heart disease.

Hypertension	74
High Cholesterol	64
Stroke	7
Ischemic Heart Disease	38
Depression	25
Chronic Kidney Disease	39
Asthma	11
Osteoporosis	10
Heart Failure	30
Chronic Obstructive Pulmonary Disease	24
Diabetes	34
Atrial Fibrillation	18
Dementia	14
Cancer	11

Education & Training

Dr. Michael Oliver Zamora Roxas, MD graduated from St. Luke's College of Medicine, William H. Quasha Memorial. He completed residency at Internal Medicine, McLaren Flint/Michigan State University, Flint, MI. He is certified by the American Board of Internal Medicine and has a state license in Iowa.

Medical School: St. Luke's College of Medicine, William H. Quasha Memorial

Residency: Internal Medicine, McLaren Flint/Michigan State University, Flint, MI

Board Certification: American Board of Internal Medicine

Licensed In: Iowa

Affiliations & Hospitals

Dr. Michael Oliver Zamora Roxas, MD is associated with these hospitals and organizations:

Virginia Mason Franciscan Health

Ratings & Reviews

Dr. Michael Oliver Zamora Roxas, MD has an exceptional overall rating with an average of 4.91 out of 5 stars based on 309 ratings. We collect ratings and reviews of Dr. Michael Oliver Zamora Roxas, MD from all over the web to help you find the right in Tacoma, WA.

4.91

Overall Rating

(309 Ratings)

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Reviews From Around The Web

Overall Rating: 5.0 2025-10-04