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John Dirk Hollander, DPM

Accepting New Patients

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Specializes in: Foot & Ankle Surgery and Podiatry (Foot & Ankle Medicine)

Samuel Merritt University, California School of Podiatric Medicine

Professional interests include: diabetic limb salvage, diabetic foot ulcers, tendonitis, and more.

95 Montgomery Drive Suite 114
Santa Rosa, CA 95404

(707) 578-1222

John Dirk Hollander, DPM is a podiatrist in Santa Rosa, CA specializing in foot & ankle surgery and podiatry (foot & ankle medicine). He graduated from Samuel Merritt University, California School of Podiatric Medicine. John Dirk Hollander, DPM is affiliated with Sutter Health.

Office Locations

Sutter Health

95 Montgomery Drive Suite 114
Santa Rosa, CA 95404

(707) 578-1222

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Noteworthy Medicare Patient Procedures Performed by John Dirk Hollander, DPM in 2023

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

Top 5%

By Affordability:

removal of benign skin lesion

removal of skin lesion

skin procedures

In 2023, John Dirk Hollander, DPM had a list price for removal of benign (non-cancerous) skin lesion, removal of skin lesion (growth or mark), and skin procedures 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.

Top 10%

By Affordability:

removal of benign hyperkeratosis

In 2023, John Dirk Hollander, DPM had a list price for removal of benign hyperkeratosis 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:

nail procedures

In 2012, John Dirk Hollander, DPM had a list price for nail procedures 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 John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA during 2012 were nail procedures, removal of lesion (e.g. growth), skin procedures and debridement (removal of unhealthy tissue).

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

aspiration	17
debridement (removal of unhealthy tissue)	187
doctor visit	1158
immobilization	38
injections	43
musculoskeletal imaging	30
nail avulsion	17
nail procedures	228
removal of lesion (e.g. growth)	195
skin procedures	195
X-rays	30

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA during 2013 were nail procedures, debridement (removal of unhealthy tissue), removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

aspiration	44
debridement (removal of unhealthy tissue)	314
doctor visit	1260
immobilization	65
injections	68
musculoskeletal imaging	41
nail avulsion	27
nail procedures	426
removal of lesion (e.g. growth)	240
skin procedures	240
X-rays	41

2013 Medicare Patient Data

Information about Medicare patients treated by John Dirk Hollander, DPM.

**Gender**
Male	222
Female	311

**Ethnicity**
Non-Hispanic White	486
Black	0
Hispanic	18
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	231
From 75 to 84	147
85 and over	97
Less than 65	58

Conditions of Medicare patients treated by John Dirk Hollander, DPM in 2013

Hypertension	54
High Cholesterol	50
Stroke	4
Ischemic Heart Disease	33
Depression	21
Chronic Kidney Disease	19
Asthma	6
Osteoperosis	6
Atrial Fibrilation	14
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	33
Dementia	11
Cancer	9

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA during 2014 were nail procedures, debridement (removal of unhealthy tissue), removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

aspiration	23
debridement (removal of unhealthy tissue)	309
doctor visit	1281
immobilization	59
injections	55
musculoskeletal imaging	27
nail avulsion	34
nail procedures	465
removal of lesion (e.g. growth)	288
skin procedures	288
X-rays	27

2014 Medicare Patient Data

Information about Medicare patients treated by John Dirk Hollander, DPM.

**Gender**
Male	251
Female	349

**Ethnicity**
Non-Hispanic White	548
Black	0
Hispanic	15
Asian	0
Other	14
Native American	0

**Age**
From 65 to 74	285
From 75 to 84	152
85 and over	112
Less than 65	51

Conditions of Medicare patients treated by John Dirk Hollander, DPM in 2014

Hypertension	54
High Cholesterol	48
Stroke	5
Ischemic Heart Disease	31
Depression	19
Chronic Kidney Disease	18
Asthma	7
Osteoperosis	7
Atrial Fibrilation	12
Heart Failure	18
Chronic Obstructive Pulmonary Disease	12
Diabetes	31
Dementia	13
Cancer	8

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA during 2015 were nail procedures, removal of lesion (e.g. growth), skin procedures and debridement (removal of unhealthy tissue).

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

abscess drainage	12
aspiration	47
debridement (removal of unhealthy tissue)	289
doctor visit	1512
immobilization	50
incision and drainage	12
injections	82
minor procedures	12
musculoskeletal imaging	44
nail avulsion	48
nail procedures	424
nerve block	18
pain management	18
removal of lesion (e.g. growth)	335
skin procedures	335
skin surgery	12
X-rays	44

2015 Medicare Patient Data

Information about Medicare patients treated by John Dirk Hollander, DPM.

**Gender**
Male	488
Female	790

**Ethnicity**
Non-Hispanic White	1148
Black	0
Hispanic	50
Asian	0
Other	36
Native American	0

**Age**
From 65 to 74	638
From 75 to 84	318
85 and over	206
Less than 65	116

Conditions of Medicare patients treated by John Dirk Hollander, DPM in 2015

Hypertension	52
High Cholesterol	45
Stroke	4
Ischemic Heart Disease	28
Depression	22
Chronic Kidney Disease	17
Asthma	8
Osteoperosis	9
Atrial Fibrilation	11
Heart Failure	17
Chronic Obstructive Pulmonary Disease	9
Diabetes	27
Dementia	9
Cancer	8

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA during 2016 were nail procedures, removal of lesion (e.g. growth), skin procedures and debridement (removal of unhealthy tissue).

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

aspiration	46
debridement (removal of unhealthy tissue)	289
doctor visit	1366
immobilization	50
injections	74
musculoskeletal imaging	26
nail avulsion	30
nail procedures	439
removal of lesion (e.g. growth)	337
skin procedures	337
X-rays	26

2016 Medicare Patient Data

Information about Medicare patients treated by John Dirk Hollander, DPM.

**Gender**
Male	253
Female	376

**Ethnicity**
Non-Hispanic White	569
Black	0
Hispanic	23
Asian	0
Other	15
Native American	11

**Age**
From 65 to 74	291
From 75 to 84	155
85 and over	125
Less than 65	58

Conditions of Medicare patients treated by John Dirk Hollander, DPM in 2016

Hypertension	54
High Cholesterol	41
Stroke	3
Ischemic Heart Disease	31
Depression	21
Chronic Kidney Disease	22
Asthma	13
Osteoperosis	8
Atrial Fibrilation	14
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	26
Dementia	11
Cancer	12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA during 2017 were nail procedures, removal of lesion (e.g. growth), skin procedures and debridement (removal of unhealthy tissue).

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

aspiration	51
debridement (removal of unhealthy tissue)	281
doctor visit	1584
immobilization	52
injections	99
musculoskeletal imaging	20
nail avulsion	44
nail procedures	456
nerve block	18
pain management	18
removal of lesion (e.g. growth)	364
skin procedures	364
X-rays	20

2017 Medicare Patient Data

Information about Medicare patients treated by John Dirk Hollander, DPM.

**Gender**
Male	280
Female	389

**Ethnicity**
Non-Hispanic White	608
Black	0
Hispanic	20
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	318
From 75 to 84	180
85 and over	110
Less than 65	61

Conditions of Medicare patients treated by John Dirk Hollander, DPM in 2017

Hypertension	57
High Cholesterol	41
Stroke	3
Ischemic Heart Disease	29
Depression	22
Chronic Kidney Disease	25
Asthma	7
Osteoperosis	8
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	26
Dementia	12
Cancer	10

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA during 2018 were nail procedures, removal of lesion (e.g. growth), skin procedures and debridement (removal of unhealthy tissue).

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

aspiration	41
debridement (removal of unhealthy tissue)	313
doctor visit	1238
excision	36
immobilization	29
injections	60
musculoskeletal imaging	15
nail avulsion	31
nail procedures	476
removal of lesion (e.g. growth)	316
skin procedures	316
X-rays	15

2018 Medicare Patient Data

Information about Medicare patients treated by John Dirk Hollander, DPM.

**Gender**
Male	265
Female	366

**Ethnicity**
Non-Hispanic White	569
Black	0
Hispanic	23
Asian	0
Other	21
Native American	0

**Age**
From 65 to 74	273
From 75 to 84	213
85 and over	108
Less than 65	37

Conditions of Medicare patients treated by John Dirk Hollander, DPM in 2018

Hypertension	56
High Cholesterol	52
Stroke	6
Ischemic Heart Disease	33
Depression	25
Chronic Kidney Disease	27
Asthma	7
Osteoperosis	10
Atrial Fibrilation	13
Heart Failure	18
Chronic Obstructive Pulmonary Disease	11
Diabetes	28
Dementia	10
Cancer	12

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA during 2019 were nail procedures, removal of lesion (e.g. growth), skin procedures and debridement (removal of unhealthy tissue).

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

aspiration	20
debridement (removal of unhealthy tissue)	241
doctor visit	1156
excision	22
immobilization	25
injections	40
nail avulsion	22
nail procedures	412
removal of lesion (e.g. growth)	321
skin procedures	321

2019 Medicare Patient Data

Information about Medicare patients treated by John Dirk Hollander, DPM.

**Gender**
Male	244
Female	368

**Ethnicity**
Non-Hispanic White	549
Black	0
Hispanic	25
Asian	0
Other	16
Native American	0

**Age**
From 65 to 74	283
From 75 to 84	177
85 and over	125
Less than 65	27

Conditions of Medicare patients treated by John Dirk Hollander, DPM in 2019

Hypertension	57
High Cholesterol	51
Stroke	5
Ischemic Heart Disease	33
Depression	25
Chronic Kidney Disease	27
Asthma	7
Osteoperosis	11
Atrial Fibrilation	15
Heart Failure	18
Chronic Obstructive Pulmonary Disease	10
Diabetes	23
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA during 2020 were nail procedures, removal of lesion (e.g. growth), skin procedures and debridement (removal of unhealthy tissue).

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

aspiration	16
debridement (removal of unhealthy tissue)	194
doctor visit	1017
immobilization	51
injections	16
nail avulsion	34
nail procedures	348
removal of lesion (e.g. growth)	250
skin procedures	250

2020 Medicare Patient Data

Information about Medicare patients treated by John Dirk Hollander, DPM.

**Gender**
Male	221
Female	287

**Ethnicity**
Non-Hispanic White	461
Black	0
Hispanic	20
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	225
From 75 to 84	167
85 and over	94
Less than 65	22

Conditions of Medicare patients treated by John Dirk Hollander, DPM in 2020

Hypertension	51
High Cholesterol	48
Stroke	4
Ischemic Heart Disease	34
Depression	21
Chronic Kidney Disease	28
Asthma	8
Osteoperosis	13
Atrial Fibrilation	13
Heart Failure	17
Chronic Obstructive Pulmonary Disease	11
Diabetes	22
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA during 2021 were nail procedures, removal of lesion (e.g. growth), skin procedures and debridement (removal of unhealthy tissue).

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

aspiration	42
debridement (removal of unhealthy tissue)	214
doctor visit	1065
immobilization	46
injections	57
nail avulsion	25
nail procedures	356
nerve block	15
pain management	15
removal of lesion (e.g. growth)	270
skin procedures	270

2021 Medicare Patient Data

Information about Medicare patients treated by John Dirk Hollander, DPM.

**Gender**
Male	214
Female	300

**Ethnicity**
Non-Hispanic White	467
Black	0
Hispanic	19
Asian	0
Other	0
Native American	0

**Age**
From 65 to 74	222
From 75 to 84	174
85 and over	94
Less than 65	24

Conditions of Medicare patients treated by John Dirk Hollander, DPM in 2021

Hypertension	56
High Cholesterol	56
Stroke	3
Ischemic Heart Disease	33
Depression	22
Chronic Kidney Disease	26
Asthma	7
Osteoperosis	13
Atrial Fibrilation	14
Heart Failure	16
Chronic Obstructive Pulmonary Disease	11
Diabetes	21
Dementia	11
Cancer	11

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA during 2022 were nail procedures, debridement (removal of unhealthy tissue), removal of lesion (e.g. growth) and skin procedures.

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

aspiration	23
debridement (removal of unhealthy tissue)	209
doctor visit	1004
immobilization	40
injections	42
musculoskeletal imaging	16
nail avulsion	27
nail procedures	426
nerve block	19
pain management	19
removal of lesion (e.g. growth)	194
skin procedures	194
X-rays	16

2022 Medicare Patient Data

Information about Medicare patients treated by John Dirk Hollander, DPM.

**Gender**
Male	194
Female	307

**Ethnicity**
Non-Hispanic White	450
Black	0
Hispanic	13
Asian	0
Other	25
Native American	0

**Age**
From 65 to 74	224
From 75 to 84	164
85 and over	93
Less than 65	20

Conditions of Medicare patients treated by John Dirk Hollander, DPM in 2022

Hypertension	65
High Cholesterol	72
Stroke	5
Ischemic Heart Disease	24
Depression	20
Chronic Kidney Disease	20
Asthma	11
Osteoperosis	20
Atrial Fibrilation	22
Heart Failure	15
Chronic Obstructive Pulmonary Disease	13
Diabetes	22
Dementia	6
Cancer	14

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by John Dirk Hollander, DPM for Medicare patients.

The highest averages for the top procedures that John Dirk Hollander, DPM treated as a podiatrist in Santa Rosa, CA were nail procedures, removal of lesion (e.g. growth), skin procedures and debridement (removal of unhealthy tissue).

abscess drainage	12
aspiration	33
debridement (removal of unhealthy tissue)	258
doctor visit	1240
excision	29
immobilization	45
incision and drainage	12
injections	57
minor procedures	12
musculoskeletal imaging	27
nail avulsion	30
nail procedures	405
nerve block	17
pain management	17
removal of lesion (e.g. growth)	282
skin procedures	282
skin surgery	12
X-rays	27

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by John Dirk Hollander, DPM.

**Gender**
Male	239
Female	349

**Ethnicity**
Black / African American	0
Asian / Pacific Islander	0
Non-Hispanic White	532
Native American / Alaskan Native	1
Hispanic	20
Other	13

**Age**
75 to 84	167
85 and over	105
Less than 65	43
65 to 74	271

Average of Total of Conditions of Medicare patients treated by John Dirk Hollander, DPM From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that John Dirk Hollander, DPM treated were hypertension, high cholesterol, ischemic heart disease and diabetes.

Hypertension	50
High Cholesterol	45
Stroke	3
Ischemic Heart Disease	28
Depression	19
Chronic Kidney Disease	20
Asthma	7
Osteoporosis	9
Heart Failure	15
Chronic Obstructive Pulmonary Disease	10
Diabetes	23
Atrial Fibrillation	12
Dementia	9
Cancer	9

Education & Training

John Dirk Hollander, DPM graduated from Samuel Merritt University, California School of Podiatric Medicine. He completed residency at Anaheim Doctors Hospital. He has a state license in California.

Medical School: Samuel Merritt University, California School of Podiatric Medicine

Residency: Anaheim Doctors Hospital

Licensed In: California

Affiliations & Hospitals

John Dirk Hollander, DPM is associated with these hospitals and organizations:

Sutter Health

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General Payments

These charts describe general payments received by John Dirk Hollander, DPM. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

**Payments by Company**
BIOVENTUS LLC	$211 Ultrasound Bone Healing $140	Exogen $26	Exogen Ultrasound Bone Healing System $20	$24
Melinta Therapeutics, Inc.	$136 MENOCIN $136
Tactile Systems Technology Inc	$94 ENTRE $94
Teva Pharmaceuticals USA, Inc.	$71 AZILECT $71
Smith & Nephew, Inc.	$63 Regranex $36	Santyl $27
Other	$412 JUBLIA EFINACONAZOLE $50	LAPIDUS $46	Duexis $31	Osteogenesis Stimulators $30	NON-PRODUCT $29	Other $225

**Types of Payments**
Food and Beverage	$957
Education	$29

Biography

Dr. John Hollander is a specialist in foot & ankle surgery and podiatry (foot & ankle medicine). Areas of expertise for Dr. Hollander include diabetic foot ulcers, diabetic limb salvage, and heel pain. He is professionally affiliated with Sutter Health. Sutter Health reports that Dr. Hollander is accepting new patients at his office in Santa Rosa, CA.