Procedure Volume Patient Data Patient Conditions Reviews General Payments Back to Top

Home > WA Providers > Surgical Oncologists

Dr. Claire Louise Buchanan, FACS, MD

(No ratings)

Specializes in: Surgical Oncology (Cancer Surgery)

University of Chicago, Pritzker School of Medicine

Professional interests include: breast cancer, breast issues

1550 N 115th Street
Seattle, WA 98133

(206) 520-5000

Dr. Claire Louise Buchanan, FACS, MD is a surgical oncologist in Seattle, WA specializing in surgical oncology (cancer surgery). She graduated from University of Chicago, Pritzker School of Medicine. Dr. Claire Louise Buchanan, FACS, MD is affiliated with Fred Hutchinson Cancer Center.

Office Locations

1354 Aloha Street Sloan Clinic 1
Seattle, WA 98109

open_in_new

1550 N 115th Street
Seattle, WA 98133

(206) 520-5000

open_in_new

820 Yale Avenue N. Sloan Clinic 2
Seattle, WA 98109

(206) 606-1024

open_in_new

Noteworthy Medicare Patient Procedures Performed by Dr. Claire Louise Buchanan, FACS, MD in 2024

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

Top 25%

By Volume:

lymph node procedures

In 2012, Dr. Claire Louise Buchanan, FACS, MD performed more lymph node procedures procedures for Medicare patients than 75% of providers in related specialties within Washington.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2012 were lymph node procedures, excision, open surgery and diagnostic procedures.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	13
cancer surgery	13
diagnostic procedures	21
doctor visit	99
excision	34
lymph node procedures	37
open surgery	21

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2013 were lymph node procedures, open surgery, diagnostic procedures and excision.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

diagnostic procedures	12
doctor visit	117
excision	12
lymph node procedures	25
open surgery	12

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Gender**
Male	0
Female	96

**Ethnicity**
Non-Hispanic White	85
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	54
From 75 to 84	28
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2013

Hypertension	41
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	0
Depression	17
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	16
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2014 were excision, lymph node procedures, breast procedures and cancer surgery.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	15
cancer surgery	15
diagnostic procedures	11
doctor visit	131
excision	26
lymph node procedures	22
open surgery	11

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Gender**
Male	0
Female	109

**Ethnicity**
Non-Hispanic White	93
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	64
From 75 to 84	28
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2014

Hypertension	50
High Cholesterol	45
Stroke	0
Ischemic Heart Disease	0
Depression	16
Chronic Kidney Disease	11
Asthma	0
Osteoperosis	11
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	17
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2015 were excision, lymph node procedures, breast procedures and cancer surgery.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	15
cancer surgery	15
diagnostic procedures	11
doctor visit	120
excision	26
lymph node procedures	22
open surgery	11

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Ethnicity**
Non-Hispanic White	202
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	136
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2015

Hypertension	48
High Cholesterol	48
Stroke	0
Ischemic Heart Disease	0
Depression	17
Chronic Kidney Disease	10
Asthma	0
Osteoperosis	11
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	18
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2016 were lymph node procedures, excision, open surgery and diagnostic procedures.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	14
cancer surgery	14
diagnostic procedures	15
doctor visit	114
excision	29
lymph node procedures	30
open surgery	15

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Gender**
Male	0
Female	108

**Age**
From 65 to 74	70
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2016

Hypertension	45
High Cholesterol	32
Stroke	0
Ischemic Heart Disease	0
Depression	18
Chronic Kidney Disease	12
Asthma	0
Osteoperosis	10
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	16
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2017 were breast procedures, cancer surgery and excision.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	21
cancer surgery	21
doctor visit	116
excision	21

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Gender**
Male	0
Female	114

**Ethnicity**
Non-Hispanic White	96
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	78
From 75 to 84	25
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2017

Hypertension	54
High Cholesterol	39
Stroke	0
Ischemic Heart Disease	10
Depression	25
Chronic Kidney Disease	18
Asthma	0
Osteoperosis	0
Atrial Fibrilation	10
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	18
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2018 were breast procedures, cancer surgery and excision.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	16
cancer surgery	16
doctor visit	56
excision	16

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Gender**
Male	0
Female	67

**Age**
From 65 to 74	50
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2018

Hypertension	45
High Cholesterol	36
Stroke	0
Ischemic Heart Disease	0
Depression	19
Chronic Kidney Disease	21
Asthma	0
Osteoperosis	16
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2019 were breast procedures, cancer surgery and excision.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	15
cancer surgery	15
doctor visit	45
excision	15

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Gender**
Male	0
Female	43

**Age**
From 65 to 74	28
From 75 to 84	15
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2019

Hypertension	49
High Cholesterol	51
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	0
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2020 were excision, breast procedures, cancer surgery and lymph node procedures.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	24
cancer surgery	24
diagnostic procedures	12
doctor visit	61
excision	36
lymph node procedures	23
open surgery	12

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Age**
From 65 to 74	27
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2020

Hypertension	54
High Cholesterol	40
Stroke	0
Ischemic Heart Disease	0
Depression	23
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	0
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2021 were reconstructive surgery, plastic surgery procedures, wound repair (e.g. stitches) and tissue transfer.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	15
cancer surgery	15
doctor visit	72
excision	15
lymph node procedures	11
plastic surgery procedures	16
reconstructive surgery	16
tissue transfer	16
wound repair (e.g. stitches)	16

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Gender**
Male	0
Female	67

**Ethnicity**
Non-Hispanic White	55
Black	0
Hispanic	0
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	37
From 75 to 84	30
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2021

Hypertension	48
High Cholesterol	33
Stroke	0
Ischemic Heart Disease	0
Depression	16
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	22
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2022 were excision, lymph node procedures, breast procedures and cancer surgery.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	31
cancer surgery	31
diagnostic procedures	19
doctor visit	39
excision	50
lymph node procedures	37
open surgery	19

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Gender**
Male	0
Female	73

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

**Age**
From 65 to 74	39
From 75 to 84	23
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2022

Hypertension	47
High Cholesterol	55
Stroke	0
Ischemic Heart Disease	0
Depression	0
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	23
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2023 were excision, breast procedures, cancer surgery and lymph node procedures.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	48
cancer surgery	48
diagnostic procedures	18
doctor visit	54
excision	66
lymph node procedures	36
open surgery	18

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Gender**
Male	0
Female	60

**Age**
From 65 to 74	38
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2023

Hypertension	62
High Cholesterol	58
Stroke	0
Ischemic Heart Disease	0
Depression	20
Chronic Kidney Disease	0
Asthma	18
Osteoperosis	30
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

The top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA during 2024 were excision, lymph node procedures, breast procedures and cancer surgery.

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

breast procedures	29
cancer surgery	29
diagnostic procedures	15
doctor visit	41
excision	44
lymph node procedures	31
open surgery	15

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Gender**
Male	0
Female	63

**Age**
From 65 to 74	28
From 75 to 84	0
85 and over	0
Less than 65	0

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2024

Hypertension	56
High Cholesterol	60
Stroke	0
Ischemic Heart Disease	0
Depression	17
Chronic Kidney Disease	0
Asthma	0
Osteoperosis	17
Atrial Fibrilation	0
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	0
Dementia	0
Cancer	75

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Claire Louise Buchanan, FACS, MD for Medicare patients.

The highest averages for the top procedures that Dr. Claire Louise Buchanan, FACS, MD treated as a surgical oncologist in Seattle, WA were excision, lymph node procedures, breast procedures and cancer surgery.

breast procedures	21
cancer surgery	21
diagnostic procedures	14
doctor visit	81
excision	30
lymph node procedures	27
open surgery	14
plastic surgery procedures	16
reconstructive surgery	16
tissue transfer	16
wound repair (e.g. stitches)	16

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD.

**Gender**
Male	0
Female	61

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	45
Hispanic	0
Native American / Alaskan Native	0
Other	0

**Age**
85 and over	0
75 to 84	11
Less than 65	0
65 to 74	49

Average of Total of Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD From 2012 - 2024

The highest averages of the most common conditions of Medicare patients that Dr. Claire Louise Buchanan, FACS, MD treated were cancer, hypertension, high cholesterol and depression.

Hypertension	46
High Cholesterol	41
Stroke	0
Ischemic Heart Disease	0
Depression	14
Chronic Kidney Disease	5
Asthma	1
Osteoporosis	10
Heart Failure	0
Chronic Obstructive Pulmonary Disease	0
Diabetes	6
Atrial Fibrillation	0
Cancer	69
Dementia	0

Education & Training

Dr. Claire Louise Buchanan, FACS, MD graduated from University of Chicago, Pritzker School of Medicine. She completed residency at Saint Joseph Mercy Health System. She is certified by the General Surgery, American Board of Surgery and has a state license in Washington.

Medical School: University of Chicago, Pritzker School of Medicine

Residency: Saint Joseph Mercy Health System

Board Certification: General Surgery, American Board of Surgery (2005)

Licensed In: Washington

Ratings & Reviews

Dr. Claire Louise Buchanan, FACS, MD does not have any reviews yet, be the first to leave a review of Dr. Claire Louise Buchanan, FACS, MD here: Leave a Review

(No ratings)

Leave a Review

General Payments

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

**Payments by Company**
Invuity, Inc.	$18 $18

**Types of Payments**
Entertainment	$18

Biography

Dr. Claire Buchanan, who practices in Seattle, WA, is a medical specialist in surgical oncology (cancer surgery). She attended medical school at the University of Chicago, Pritzker School of Medicine. Dr. Buchanan's residency was performed at Saint Joseph Mercy Health System. She has indicated that her clinical interests include breast cancer. Her distinctions include: Seattle Met's 2025 Top Doctors award; Seattle Magazine's 2025 Top Doctors Award; and Dr. Buchanan has received this peer-nominated award for exceptional patient care for multiple years. Dr. Buchanan is professionally affiliated with Fred Hutchinson Cancer Center.

Select Year:

Dr. Claire Louise Buchanan, FACS, MD

Office Locations

Noteworthy Medicare Patient Procedures Performed by Dr. Claire Louise Buchanan, FACS, MD in 2024

By Volume:

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. Claire Louise Buchanan, FACS, MD in 2013

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

2014 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2014

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

2015 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2015

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

2016 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2016

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

2017 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2017

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

2018 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2018

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

2019 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2019

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

2020 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2020

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

2021 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2021

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

2022 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2022

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

2023 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, MD in 2023

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

2024 Medicare Patient Data

Conditions of Medicare patients treated by Dr. Claire Louise Buchanan, FACS, 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. Claire Louise Buchanan, FACS, MD From 2012 - 2024

Education & Training

Ratings & Reviews

General Payments

Biography

Surgical Oncologists in Nearby Locations

Other Providers in Seattle, WA