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Home > CA Providers > Dermatologists

Dr. Karen Denise Allen, MD

(No ratings)

Specializes in: Dermatology (Skin Disorders)

715 Tank Farm Road
San Luis Obispo, CA 93401

(805) 543-4488

Dr. Karen Denise Allen, MD is a dermatologist in San Luis Obispo, CA specializing in dermatology (skin disorders).

Office Locations

715 Tank Farm Road
San Luis Obispo, CA 93401

(805) 543-4488

(805) 543-6271

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Noteworthy Medicare Patient Procedures Performed by Dr. Karen Denise Allen, MD in 2024

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

Top 10%

By Affordability:

removal of lesion

removal of skin lesion

skin procedures

In 2024, Dr. Karen Denise Allen, MD had a list price for removal of lesion (e.g. growth), removal of skin lesion (growth or mark), and skin procedures that was lower than the list prices billed to Medicare by 90% 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.

Top 25%

By Affordability:

removal of benign skin lesion

skin lesion destruction

In 2012, Dr. Karen Denise Allen, MD had a list price for removal of benign (non-cancerous) skin lesion, and skin lesion destruction (e.g. laser surgery) that was lower than the list prices billed to Medicare by 75% 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. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2012 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and skin surgery.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

cancer surgery	21
diagnostic procedures	80
doctor visit	621
removal of lesion (e.g. growth)	287
skin procedures	287
skin surgery	21

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2013 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and skin surgery.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

cancer surgery	20
diagnostic procedures	77
doctor visit	528
removal of lesion (e.g. growth)	204
skin procedures	204
skin surgery	20

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	114
Female	221

**Ethnicity**
Non-Hispanic White	322
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	165
From 75 to 84	119
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2013

Hypertension	49
High Cholesterol	40
Stroke	0
Ischemic Heart Disease	18
Depression	11
Chronic Kidney Disease	11
Asthma	6
Osteoperosis	9
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	7
Diabetes	18
Dementia	6
Cancer	15

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2014 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and skin surgery.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

cancer surgery	46
diagnostic procedures	72
doctor visit	652
removal of lesion (e.g. growth)	280
skin procedures	280
skin surgery	46

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	159
Female	280

**Ethnicity**
Non-Hispanic White	425
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	229
From 75 to 84	153
85 and over	46
Less than 65	11

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2014

Hypertension	46
High Cholesterol	47
Stroke	3
Ischemic Heart Disease	15
Depression	10
Chronic Kidney Disease	9
Asthma	5
Osteoperosis	8
Atrial Fibrilation	8
Heart Failure	5
Chronic Obstructive Pulmonary Disease	8
Diabetes	16
Dementia	4
Cancer	14

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2015 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and skin surgery.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

cancer surgery	45
diagnostic procedures	102
doctor visit	726
removal of lesion (e.g. growth)	324
skin procedures	324
skin surgery	45

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	352
Female	590

**Ethnicity**
Non-Hispanic White	916
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	470
From 75 to 84	322
85 and over	124
Less than 65	26

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2015

Hypertension	45
High Cholesterol	42
Stroke	4
Ischemic Heart Disease	18
Depression	9
Chronic Kidney Disease	14
Asthma	8
Osteoperosis	7
Atrial Fibrilation	10
Heart Failure	8
Chronic Obstructive Pulmonary Disease	8
Diabetes	16
Dementia	4
Cancer	16

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2016 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and skin surgery.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

cancer surgery	38
diagnostic procedures	89
doctor visit	744
removal of lesion (e.g. growth)	343
skin procedures	343
skin surgery	38

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	182
Female	298

**Ethnicity**
Non-Hispanic White	465
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	240
From 75 to 84	157
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2016

Hypertension	49
High Cholesterol	43
Stroke	4
Ischemic Heart Disease	20
Depression	11
Chronic Kidney Disease	17
Asthma	10
Osteoperosis	8
Atrial Fibrilation	10
Heart Failure	9
Chronic Obstructive Pulmonary Disease	8
Diabetes	16
Dementia	4
Cancer	18

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2017 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and skin surgery.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

cancer surgery	52
diagnostic procedures	107
doctor visit	862
removal of lesion (e.g. growth)	466
skin procedures	466
skin surgery	52

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	226
Female	338

**Ethnicity**
Non-Hispanic White	538
Black	0
Hispanic	13
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	296
From 75 to 84	190
85 and over	67
Less than 65	11

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2017

Hypertension	49
High Cholesterol	42
Stroke	3
Ischemic Heart Disease	17
Depression	12
Chronic Kidney Disease	16
Asthma	5
Osteoperosis	8
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	7
Diabetes	16
Dementia	4
Cancer	16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2018 were removal of lesion (e.g. growth), skin procedures, diagnostic procedures and skin surgery.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

cancer surgery	22
diagnostic procedures	169
doctor visit	1241
removal of lesion (e.g. growth)	639
skin procedures	639
skin surgery	22

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	306
Female	423

**Ethnicity**
Non-Hispanic White	698
Black	0
Hispanic	17
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	405
From 75 to 84	239
85 and over	73
Less than 65	12

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2018

Hypertension	50
High Cholesterol	49
Stroke	3
Ischemic Heart Disease	19
Depression	12
Chronic Kidney Disease	19
Asthma	5
Osteoperosis	8
Atrial Fibrilation	9
Heart Failure	8
Chronic Obstructive Pulmonary Disease	7
Diabetes	16
Dementia	3
Cancer	15

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2019 were removal of lesion (e.g. growth), skin procedures, skin surgery and cancer surgery.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

cancer surgery	48
doctor visit	1159
removal of lesion (e.g. growth)	648
skin procedures	648
skin surgery	48

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	303
Female	405

**Ethnicity**
Non-Hispanic White	676
Black	0
Hispanic	15
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	390
From 75 to 84	240
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2019

Hypertension	51
High Cholesterol	51
Stroke	2
Ischemic Heart Disease	21
Depression	13
Chronic Kidney Disease	18
Asthma	5
Osteoperosis	10
Atrial Fibrilation	8
Heart Failure	7
Chronic Obstructive Pulmonary Disease	6
Diabetes	15
Dementia	3
Cancer	14

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2020 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

doctor visit	709
removal of lesion (e.g. growth)	384
skin procedures	384

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	232
Female	270

**Ethnicity**
Non-Hispanic White	481
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	273
From 75 to 84	179
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2020

Hypertension	48
High Cholesterol	50
Stroke	0
Ischemic Heart Disease	20
Depression	11
Chronic Kidney Disease	20
Asthma	5
Osteoperosis	9
Atrial Fibrilation	7
Heart Failure	7
Chronic Obstructive Pulmonary Disease	5
Diabetes	17
Dementia	4
Cancer	12

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2021 were removal of lesion (e.g. growth), skin procedures, radiation therapy and ear procedures.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

cancer surgery	14
diagnostic procedures	15
doctor visit	954
ear procedures	15
radiation therapy	111
removal of lesion (e.g. growth)	492
skin procedures	492
skin surgery	14

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	267
Female	324

**Ethnicity**
Non-Hispanic White	563
Black	0
Hispanic	12
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	310
From 75 to 84	206
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2021

Hypertension	49
High Cholesterol	51
Stroke	2
Ischemic Heart Disease	21
Depression	12
Chronic Kidney Disease	18
Asthma	4
Osteoperosis	12
Atrial Fibrilation	7
Heart Failure	8
Chronic Obstructive Pulmonary Disease	7
Diabetes	13
Dementia	4
Cancer	12

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2022 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

doctor visit	995
removal of lesion (e.g. growth)	534
skin procedures	534

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	261
Female	350

**Ethnicity**
Non-Hispanic White	577
Black	0
Hispanic	0
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	333
From 75 to 84	205
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2022

Hypertension	56
High Cholesterol	66
Stroke	3
Ischemic Heart Disease	16
Depression	12
Chronic Kidney Disease	13
Asthma	7
Osteoperosis	16
Atrial Fibrilation	11
Heart Failure	6
Chronic Obstructive Pulmonary Disease	7
Diabetes	14
Dementia	0
Cancer	16

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2023 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

doctor visit	997
removal of lesion (e.g. growth)	604
skin procedures	604

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	276
Female	363

**Ethnicity**
Non-Hispanic White	600
Black	0
Hispanic	0
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	331
From 75 to 84	233
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2023

Hypertension	58
High Cholesterol	68
Stroke	4
Ischemic Heart Disease	16
Depression	12
Chronic Kidney Disease	14
Asthma	8
Osteoperosis	16
Atrial Fibrilation	11
Heart Failure	6
Chronic Obstructive Pulmonary Disease	9
Diabetes	15
Dementia	0
Cancer	18

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA during 2024 were removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

doctor visit	971
removal of lesion (e.g. growth)	661
skin procedures	661

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Male	272
Female	351

**Ethnicity**
Non-Hispanic White	590
Black	0
Hispanic	0
Asian	0
Other	18
Native American	0

**Age**
From 65 to 74	314
From 75 to 84	235
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2024

Hypertension	59
High Cholesterol	72
Stroke	4
Ischemic Heart Disease	20
Depression	12
Chronic Kidney Disease	13
Asthma	8
Osteoperosis	16
Atrial Fibrilation	13
Heart Failure	7
Chronic Obstructive Pulmonary Disease	9
Diabetes	14
Dementia	2
Cancer	20

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Karen Denise Allen, MD for Medicare patients.

The highest averages for the top procedures that Dr. Karen Denise Allen, MD treated as a dermatologist in San Luis Obispo, CA were removal of lesion (e.g. growth), skin procedures, radiation therapy and diagnostic procedures.

cancer surgery	34
diagnostic procedures	88
doctor visit	858
ear procedures	15
radiation therapy	111
removal of lesion (e.g. growth)	451
skin procedures	451
skin surgery	34

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Karen Denise Allen, MD.

**Gender**
Female	324
Male	226

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	527
Hispanic	4
Native American / Alaskan Native	0
Other	4

**Age**
85 and over	23
75 to 84	190
Less than 65	4
65 to 74	288

Average of Total of Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Karen Denise Allen, MD treated were high cholesterol, hypertension, ischemic heart disease and cancer.

Hypertension	46
High Cholesterol	47
Stroke	2
Ischemic Heart Disease	17
Depression	10
Chronic Kidney Disease	14
Asthma	5
Osteoporosis	9
Heart Failure	6
Chronic Obstructive Pulmonary Disease	6
Diabetes	14
Atrial Fibrillation	8
Cancer	14
Dementia	2

Education & Training

She 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. Karen Denise Allen, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
E.R. Squibb & Sons, L.L.C.	$1,512 OPDIVO $876	YERVOY $276	EMPLICITI $148	ERBITUX $65	Inrebic $25	Other $121
Janssen Biotech, Inc.	$1,373 CARVYKTI $407	TECVAYLI $317	IMBRUVICA $240	DARZALEX $154	Tremfya $103	Other $152
Novartis Pharmaceuticals Corporation	$1,125 KISQALI $318	ZYKADIA $185	TAFINLAR $144	AFINITOR $132	NON_BRAND $100	Other $245
Amgen Inc.	$1,021 XGEVA $305	Kyprolis $267	Vectibix $146	EVENITY $114	Nplate $53	Other $136
Daiichi Sankyo Inc.	$983 Enhertu $765	Injectafer $178	Zelboraf $25	DATROWAY $16
Other	$11,476 Lenvima $545	Cabometyx $364	ADCETRIS $341	KEYTRUDA $336	LIBTAYO $279	Other $9,610

**Types of Payments**
Food and Beverage	$17,412
Education	$77

Biography

Dr. Karen Allen is a dermatology (skin disorders) specialist in San Luis Obispo, CA. Dr. Allen has obtained a license to practice in California.

Select Year:

Dr. Karen Denise Allen, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Karen Denise Allen, MD in 2024

By Affordability:

By Affordability:

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. Karen Denise Allen, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karen Denise Allen, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Karen Denise Allen, 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. Karen Denise Allen, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography

Dermatologists in Nearby Locations

Other Providers in San Luis Obispo, CA