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Dr. Cecil Olaya Robertson, MD

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Specializes in: Adult Oncology and Adult Hematology

1325 E Church Street Suite 301
Santa Maria, CA 93454

(805) 349-9393

Dr. Cecil Olaya Robertson, MD is an oncologist in Maria, CA specializing in adult oncology and adult hematology.

Office Locations

1325 E Church Street #301 Santa
Maria, CA 93454

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1325 E Church Street Suite 301
Santa Maria, CA 93454

(805) 349-9393

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3850 G Street
Merced, CA 95340

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433 Sw 10th Street
Ocala, FL 34471

(352) 732-4032

(352) 732-4191

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Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Cecil Olaya Robertson, MD treated as an oncologist in Maria, CA during 2012 were hospital care and inpatient care.

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

doctor visit	155
hospital care	521
inpatient care	521

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Cecil Olaya Robertson, MD treated as an oncologist in Maria, CA during 2013 were hospital care and inpatient care.

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

doctor visit	87
hospital care	261
inpatient care	261

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	31
Female	40

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

**Age**
From 65 to 74	20
From 75 to 84	19
85 and over	12
Less than 65	20

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2013

Hypertension	75
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	61
Depression	31
Chronic Kidney Disease	54
Asthma	17
Osteoperosis	0
Atrial Fibrilation	15
Heart Failure	51
Chronic Obstructive Pulmonary Disease	41
Diabetes	39
Dementia	34
Cancer	17

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Cecil Olaya Robertson, MD treated as an oncologist in Maria, CA during 2014 were hospital care and inpatient care.

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

hospital care	82
inpatient care	82

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2014

Hypertension	67
High Cholesterol	0
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	52
Dementia	0
Cancer	0

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Cecil Olaya Robertson, MD treated as an oncologist in Maria, CA during 2015 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

aspiration	33
biological response modifier (BRM) therapy	128
blood draw	1798
bone marrow tests	66
chemotherapy	128
diagnostic procedures	66
doctor visit	1522
hospital care	382
inpatient care	382
lab tests	2695
minimally invasive procedures	319
port flush	87
thyroid function tests	46

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	522
Female	730

**Ethnicity**
Non-Hispanic White	1006
Black	126
Hispanic	92
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	442
From 75 to 84	420
85 and over	238
Less than 65	152

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2015

Hypertension	75
High Cholesterol	75
Stroke	8
Ischemic Heart Disease	59
Depression	24
Chronic Kidney Disease	48
Asthma	16
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	32
Chronic Obstructive Pulmonary Disease	33
Diabetes	42
Dementia	16
Cancer	30

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Cecil Olaya Robertson, MD treated as an oncologist in Maria, CA during 2016 were lab tests, blood draw, inpatient care and hospital care.

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

aspiration	26
biological response modifier (BRM) therapy	150
blood draw	1644
bone marrow tests	52
chemotherapy	150
diagnostic procedures	52
doctor visit	1325
hospital care	449
inpatient care	449
lab tests	2337
minimally invasive procedures	333
port flush	60
preventive care	17
thyroid function tests	63

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	262
Female	388

**Ethnicity**
Non-Hispanic White	536
Black	58
Hispanic	41
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	239
From 75 to 84	226
85 and over	110
Less than 65	75

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2016

Hypertension	75
High Cholesterol	75
Stroke	6
Ischemic Heart Disease	55
Depression	28
Chronic Kidney Disease	49
Asthma	31
Osteoperosis	15
Atrial Fibrilation	16
Heart Failure	30
Chronic Obstructive Pulmonary Disease	28
Diabetes	40
Dementia	17
Cancer	33

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Cecil Olaya Robertson, MD treated as an oncologist in Maria, CA during 2017 were lab tests, blood draw, hospital care and inpatient care.

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

biological response modifier (BRM) therapy	140
blood draw	1328
chemotherapy	140
doctor visit	1016
hormone therapy	36
hospital care	316
inpatient care	316
lab tests	4154
minimally invasive procedures	276
port flush	27
thyroid function tests	14

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	351
Female	491

**Ethnicity**
Non-Hispanic White	715
Black	52
Hispanic	54
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	304
From 75 to 84	334
85 and over	140
Less than 65	64

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2017

Hypertension	75
High Cholesterol	69
Stroke	6
Ischemic Heart Disease	55
Depression	30
Chronic Kidney Disease	52
Asthma	9
Osteoperosis	14
Atrial Fibrilation	19
Heart Failure	31
Chronic Obstructive Pulmonary Disease	29
Diabetes	39
Dementia	15
Cancer	39

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Cecil Olaya Robertson, MD treated as an oncologist in Maria, CA during 2018 were hospital care and inpatient care.

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

doctor visit	221
hospital care	158
inpatient care	158

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	73
Female	74

**Ethnicity**
Non-Hispanic White	124
Black	11
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	59
From 75 to 84	46
85 and over	18
Less than 65	24

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2018

Hypertension	75
High Cholesterol	70
Stroke	12
Ischemic Heart Disease	46
Depression	27
Chronic Kidney Disease	50
Asthma	0
Osteoperosis	12
Atrial Fibrilation	24
Heart Failure	37
Chronic Obstructive Pulmonary Disease	33
Diabetes	37
Dementia	16
Cancer	33

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Cecil Olaya Robertson, MD treated as an oncologist in Maria, CA during 2019 were hospital care and inpatient care.

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

doctor visit	728
hospital care	14
inpatient care	14

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	216
Female	269

**Ethnicity**
Non-Hispanic White	301
Black	26
Hispanic	129
Asian	17
Other	0
Native American	0

**Age**
From 65 to 74	205
From 75 to 84	151
85 and over	69
Less than 65	60

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2019

Hypertension	75
High Cholesterol	61
Stroke	5
Ischemic Heart Disease	35
Depression	23
Chronic Kidney Disease	48
Asthma	8
Osteoperosis	16
Atrial Fibrilation	17
Heart Failure	28
Chronic Obstructive Pulmonary Disease	19
Diabetes	42
Dementia	10
Cancer	36

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

doctor visit	717

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	166
Female	244

**Ethnicity**
Non-Hispanic White	302
Black	0
Hispanic	82
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	159
From 75 to 84	138
85 and over	60
Less than 65	53

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2020

Hypertension	74
High Cholesterol	66
Stroke	4
Ischemic Heart Disease	31
Depression	22
Chronic Kidney Disease	50
Asthma	9
Osteoperosis	17
Atrial Fibrilation	15
Heart Failure	23
Chronic Obstructive Pulmonary Disease	18
Diabetes	40
Dementia	11
Cancer	39

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

doctor visit	628

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	132
Female	189

**Ethnicity**
Non-Hispanic White	288
Black	0
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	137
From 75 to 84	103
85 and over	42
Less than 65	39

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2021

Hypertension	73
High Cholesterol	69
Stroke	7
Ischemic Heart Disease	40
Depression	30
Chronic Kidney Disease	47
Asthma	8
Osteoperosis	17
Atrial Fibrilation	16
Heart Failure	27
Chronic Obstructive Pulmonary Disease	25
Diabetes	36
Dementia	12
Cancer	40

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

doctor visit	298

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	87
Female	112

**Ethnicity**
Non-Hispanic White	160
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	84
From 75 to 84	58
85 and over	27
Less than 65	30

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2022

Hypertension	75
High Cholesterol	73
Stroke	10
Ischemic Heart Disease	28
Depression	28
Chronic Kidney Disease	38
Asthma	10
Osteoperosis	17
Atrial Fibrilation	24
Heart Failure	23
Chronic Obstructive Pulmonary Disease	29
Diabetes	40
Dementia	8
Cancer	42

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Cecil Olaya Robertson, MD treated as an oncologist in Maria, CA during 2023 were blood draw.

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

blood draw	24
doctor visit	195

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	49
Female	73

**Ethnicity**
Non-Hispanic White	109
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	50
From 75 to 84	34
85 and over	19
Less than 65	19

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2023

Hypertension	75
High Cholesterol	70
Stroke	11
Ischemic Heart Disease	26
Depression	25
Chronic Kidney Disease	30
Asthma	11
Osteoperosis	15
Atrial Fibrilation	14
Heart Failure	22
Chronic Obstructive Pulmonary Disease	25
Diabetes	36
Dementia	9
Cancer	44

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

doctor visit	581

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	147
Female	119

**Ethnicity**
Non-Hispanic White	244
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	93
From 75 to 84	110
85 and over	39
Less than 65	24

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2024

Hypertension	70
High Cholesterol	73
Stroke	11
Ischemic Heart Disease	33
Depression	19
Chronic Kidney Disease	23
Asthma	8
Osteoperosis	19
Atrial Fibrilation	21
Heart Failure	24
Chronic Obstructive Pulmonary Disease	26
Diabetes	31
Dementia	6
Cancer	48

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Cecil Olaya Robertson, MD for Medicare patients.

The highest averages for the top procedures that Dr. Cecil Olaya Robertson, MD treated as an oncologist in Maria, CA were lab tests, blood draw, minimally invasive procedures and inpatient care.

aspiration	29
biological response modifier (BRM) therapy	139
blood draw	1198
bone marrow tests	59
chemotherapy	139
diagnostic procedures	59
doctor visit	622
hormone therapy	36
hospital care	272
inpatient care	272
lab tests	3062
minimally invasive procedures	309
preventive care	17
thyroid function tests	41

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Cecil Olaya Robertson, MD.

**Gender**
Male	156
Female	209

**Ethnicity**
Black / African American	21
Asian / Pacific Islander	1
Non-Hispanic White	293
Native American / Alaskan Native	0
Hispanic	32
Other	0

**Age**
75 to 84	126
85 and over	59
Less than 65	43
65 to 74	137

Average of Total of Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD From 2012 - 2024

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

Hypertension	68
High Cholesterol	58
Stroke	6
Ischemic Heart Disease	36
Depression	22
Chronic Kidney Disease	37
Asthma	9
Osteoporosis	11
Heart Failure	25
Chronic Obstructive Pulmonary Disease	23
Diabetes	36
Atrial Fibrillation	15
Dementia	11
Cancer	30

Education & Training

He has a state license in California.

Licensed In: California

Ratings & Reviews

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General Payments

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

**Payments by Company**
Incyte Corporation	$580 JAKAFI $324	$256
Novartis Pharmaceuticals Corporation	$551 PROMACTA $120	KISQALI $103	PLUVICTO $69	SCEMBLIX $67	MEKINIST $62	Other $128
E.R. Squibb & Sons, L.L.C.	$466 OPDIVO $280	ELIQUIS $57	OPDUALAG $41	Reblozyl $39	ERBITUX $13	Other $35
Janssen Biotech, Inc.	$392 RYBREVANT $223	DARZALEX $107	TALVEY $24	YONDELIS $22	Erleada $15
Genentech USA, Inc.	$267 Gazyva $106	TECENTRIQ $54	TARCEVA $35	Perjeta $27	Avastin $21	Other $24
Other	$2,923 OPTUNE LUA (NOVOTTF-200T) $175	CYRAMZA $107	Kyprolis $101	SOLIRIS $100	LYNPARZA $96	Other $2,344

**Types of Payments**
Food and Beverage	$4,780
Education	$399

Biography

Dr. Cecil Robertson obtained a license to practice in California.

Select Year:

Dr. Cecil Olaya Robertson, MD

Office Locations

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. Cecil Olaya Robertson, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Cecil Olaya Robertson, 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. Cecil Olaya Robertson, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography