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Dr. John M. Clark, MD

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Specializes in: Adult Pulmonology
University of Washington School of Medicine (1988)
Professional interests include: pain, psychotherapy treatment, group psychotherapy, and more.
3220 Providence Drive Suite E3040
Anchorage, AK 99508

Dr. John M. Clark, MD is a pulmonologist in Anchorage, AK specializing in adult pulmonology. He graduated from University of Washington School of Medicine in 1988 and has 38 years of experience. Dr. John M. Clark, MD is affiliated with Providence, Providence Alaska Medical Center and ALASKA NATIVE TRIBAL HEALTH CONSORTIUM.

View Doctor's Full Profile (907) 770-3750

Office Locations

3220 Providence Drive Suite E3040
Anchorage, AK 99508
(907) 770-3750
(907) 770-3795
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Some issues Dr. John M. Clark, MD can help you with:

Psychotherapy Treatment

Psychotherapy is commonly referred to as talk therapy or simply therapy. Trained therapists help and guide patients as they talk through issues in their life and problem-solve ways to make healthy changes.

The use of therapy is extremely common, with millions of people going through therapy each year in the United States alone. It can be useful for patients who want to learn coping skills when they are facing difficult issues or need to heal from past trauma. Therapy can also be a support tool when patients are facing stressful periods in their life. Essentially, therapy is helpful any time life events require more mental or emotional resources than a patient currently has. Change is a major theme of therapy, offering a supportive environment for patients to make changes to their life or themselves so that past problems stop recurring in the future.

There are several different types of psychotherapy, with the most common being cognitive behavioral therapy or CBT. This type of therapy focuses on the connection between thoughts, feelings, and behavior. Dialectical behavior therapy, or DBT, is a form of CBT that encourages acceptance and validation as well as change. Interpersonal therapy focuses on relationships and communication as a pathway to feeling better. Psychoanalysis, an older form of therapy invented by Sigmund Freud, teaches that all problems stem from the unconscious.

Although many people see therapists by themselves, not all psychotherapy is one-on-one. For example, in family therapy, the therapist treats a family as a unit. Patients can also participate in group therapy, where they meet as a group to work on issues.

Psychotherapy is a safe, powerful healing tool that can help patients lead happier and healthier lives. However, therapy is a joint effort between the patient and the therapist. Both need to work together in order for therapy to be effective.

Seasonal Affective Disorder (SAD)

Seasonal affective disorder (SAD), also known as seasonal depression, is a mood disorder that causes people to develop depression around the same time every year. For those with seasonal affective disorder, a change of season induces negative emotions and unhappiness. SAD most frequently begins during the transition to fall and winter months and ceases in the springtime (known as fall-onset depression). At times, SAD can arise in the early summer and end in the fall, although this spring-onset depression is highly unusual.

Young adults ages 18 to 30 are most commonly diagnosed with SAD. For unknown reasons, more women have SAD than men. Those who have a preexisting mood disorder, mental illness, or live in a region with cloudy and dark weather are also more likely to have SAD. People with SAD may experience:

  • Feelings of hopelessness
  • Fatigue
  • Daytime exhaustion
  • Loss of interest in activities
  • Weight gain
  • Social withdrawal
  • Oversleeping
  • Headaches
  • Increased desire for carbohydrates
  • Difficulty focusing

The causes of seasonal depression are uncertain. It is suggested that the reduced daylight and sunshine of winter and fall can alter the chemistry of the brain. Sunlight may assist in the production of serotonin, a hormone that regulates mood and happiness. Less exposure to sunlight may result in decreased serotonin, leading to SAD. Other potential causes include disrupted circadian rhythms, vitamin D deficiency, and increased melatonin (sleep hormone).

A variety of treatments are used to alleviate SAD. Patients usually benefit from more than one treatment. Light therapy is a special lamp that lets off intense light. The therapy is performed at home with patients keeping the lamp a few feet away from them as they complete their regular activities. Two types of light therapy include the light box (consistently bright lamp) and the dawn simulator (lamp that gradually becomes brighter and brighter). Light therapy may be partnered with other treatments for SAD, such as:

  • Antidepressant medication
  • Increased sunlight exposure
  • Vitamin D supplements
  • Psychotherapy

SAD is more than feeling disappointed by shorter winter nights or rainy days; it is months of depression that can drastically influence mood and behavior. Fortunately, people with SAD typically respond quickly to consistent light therapy and other treatments. Self-care and relaxation are also vital to the SAD recovery process. For those with SAD, treatment can be the first step to making four or five months of the year enjoyable once again.

Noteworthy Medicare Patient Procedures Performed by Dr. John M. Clark, MD in 2023

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

Top 25%

By Affordability:

lung diffusion capacity test
pulmonary function test
pulmonary testing

In 2012, Dr. John M. Clark, MD had a list price for lung diffusion capacity test (DLCO), pulmonary function test (PFT), and pulmonary testing that was lower than the list prices billed to Medicare by 75% of providers in related specialties within Alaska. 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. John M. Clark, MD treated as a pulmonologist in Anchorage, AK during 2012 were pulmonary testing, hospital care and inpatient care.

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

doctor visit 362
hospital care 90
inpatient care 90
pulmonary testing 151

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. John M. Clark, MD treated as a pulmonologist in Anchorage, AK during 2013 were hospital care, inpatient care and pulmonary testing.

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

doctor visit 331
hospital care 158
inpatient care 158
pulmonary testing 145

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Clark, MD.

Gender
Male 117
Female 121
Ethnicity
Non-Hispanic White 211
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 109
From 75 to 84 83
85 and over 20
Less than 65 26

Conditions of Medicare patients treated by Dr. John M. Clark, MD in 2013

Hypertension 66
High Cholesterol 45
Stroke 0
Ischemic Heart Disease 41
Depression 17
Chronic Kidney Disease 30
Asthma 18
Osteoperosis 10
Atrial Fibrilation 16
Heart Failure 34
Chronic Obstructive Pulmonary Disease 53
Diabetes 32
Dementia 0
Cancer 13

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. John M. Clark, MD treated as a pulmonologist in Anchorage, AK during 2014 were pulmonary testing.

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

doctor visit 461
pulmonary testing 175

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Clark, MD.

Gender
Male 115
Female 136
Ethnicity
Non-Hispanic White 216
Black 11
Hispanic 0
Asian 13
Other 0
Native American 0
Age
From 65 to 74 121
From 75 to 84 73
85 and over 26
Less than 65 31

Conditions of Medicare patients treated by Dr. John M. Clark, MD in 2014

Hypertension 56
High Cholesterol 44
Stroke 0
Ischemic Heart Disease 36
Depression 17
Chronic Kidney Disease 24
Asthma 21
Osteoperosis 8
Atrial Fibrilation 19
Heart Failure 24
Chronic Obstructive Pulmonary Disease 51
Diabetes 33
Dementia 0
Cancer 12

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. John M. Clark, MD treated as a pulmonologist in Anchorage, AK during 2015 were pulmonary testing.

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

doctor visit 597
pulmonary testing 271

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Clark, MD.

Gender
Male 348
Female 346
Ethnicity
Non-Hispanic White 582
Black 28
Hispanic 22
Asian 36
Other 0
Native American 0
Age
From 65 to 74 330
From 75 to 84 220
85 and over 64
Less than 65 80

Conditions of Medicare patients treated by Dr. John M. Clark, MD in 2015

Hypertension 62
High Cholesterol 44
Stroke 0
Ischemic Heart Disease 44
Depression 18
Chronic Kidney Disease 22
Asthma 32
Osteoperosis 7
Atrial Fibrilation 17
Heart Failure 32
Chronic Obstructive Pulmonary Disease 50
Diabetes 33
Dementia 5
Cancer 13

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. John M. Clark, MD treated as a pulmonologist in Anchorage, AK during 2016 were pulmonary testing.

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

doctor visit 662
pulmonary testing 240

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Clark, MD.

Gender
Male 174
Female 171
Ethnicity
Non-Hispanic White 298
Black 15
Hispanic 0
Asian 16
Other 0
Native American 0
Age
From 65 to 74 156
From 75 to 84 116
85 and over 39
Less than 65 34

Conditions of Medicare patients treated by Dr. John M. Clark, MD in 2016

Hypertension 64
High Cholesterol 37
Stroke 0
Ischemic Heart Disease 43
Depression 18
Chronic Kidney Disease 28
Asthma 58
Osteoperosis 11
Atrial Fibrilation 14
Heart Failure 33
Chronic Obstructive Pulmonary Disease 55
Diabetes 26
Dementia 7
Cancer 12

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. John M. Clark, MD treated as a pulmonologist in Anchorage, AK during 2017 were pulmonary testing.

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

doctor visit 453
pulmonary testing 135

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Clark, MD.

Gender
Male 170
Female 194
Ethnicity
Non-Hispanic White 186
Black 0
Hispanic 0
Asian 11
Other 0
Native American 149
Age
From 65 to 74 161
From 75 to 84 118
85 and over 36
Less than 65 49

Conditions of Medicare patients treated by Dr. John M. Clark, MD in 2017

Hypertension 60
High Cholesterol 37
Stroke 0
Ischemic Heart Disease 43
Depression 17
Chronic Kidney Disease 31
Asthma 23
Osteoperosis 8
Atrial Fibrilation 16
Heart Failure 33
Chronic Obstructive Pulmonary Disease 65
Diabetes 32
Dementia 9
Cancer 16

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. John M. Clark, MD treated as a pulmonologist in Anchorage, AK during 2018 were pulmonary testing.

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

doctor visit 443
pulmonary testing 115

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Clark, MD.

Gender
Male 131
Female 166
Age
From 65 to 74 143
From 75 to 84 88
85 and over 14
Less than 65 52

Conditions of Medicare patients treated by Dr. John M. Clark, MD in 2018

Hypertension 63
High Cholesterol 30
Stroke 0
Ischemic Heart Disease 36
Depression 14
Chronic Kidney Disease 29
Asthma 19
Osteoperosis 7
Atrial Fibrilation 11
Heart Failure 27
Chronic Obstructive Pulmonary Disease 74
Diabetes 24
Dementia 7
Cancer 18

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. John M. Clark, MD treated as a pulmonologist in Anchorage, AK during 2019 were pulmonary testing.

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

doctor visit 601
pulmonary testing 223

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Clark, MD.

Gender
Male 183
Female 211
Ethnicity
Non-Hispanic White 0
Black 0
Hispanic 0
Asian 0
Other 0
Native American 373
Age
From 65 to 74 208
From 75 to 84 110
85 and over 24
Less than 65 52

Conditions of Medicare patients treated by Dr. John M. Clark, MD in 2019

Hypertension 64
High Cholesterol 33
Stroke 0
Ischemic Heart Disease 36
Depression 14
Chronic Kidney Disease 29
Asthma 14
Osteoperosis 9
Atrial Fibrilation 9
Heart Failure 26
Chronic Obstructive Pulmonary Disease 70
Diabetes 27
Dementia 10
Cancer 19

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

The top procedures that Dr. John M. Clark, MD treated as a pulmonologist in Anchorage, AK during 2020 were pulmonary testing.

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

doctor visit 353
pulmonary testing 99

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Clark, MD.

Gender
Male 124
Female 174
Ethnicity
Non-Hispanic White 12
Black 0
Hispanic 0
Asian 0
Other 0
Native American 273
Age
From 65 to 74 156
From 75 to 84 85
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. John M. Clark, MD in 2020

Hypertension 53
High Cholesterol 30
Stroke 0
Ischemic Heart Disease 29
Depression 17
Chronic Kidney Disease 32
Asthma 13
Osteoperosis 14
Atrial Fibrilation 11
Heart Failure 26
Chronic Obstructive Pulmonary Disease 66
Diabetes 30
Dementia 9
Cancer 16

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. John M. Clark, MD treated as a pulmonologist in Anchorage, AK during 2021 were pulmonary testing.

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

doctor visit 385
pulmonary testing 127

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Clark, MD.

Gender
Male 111
Female 153
Ethnicity
Non-Hispanic White 0
Black 0
Hispanic 0
Asian 0
Other 17
Native American 233
Age
From 65 to 74 138
From 75 to 84 70
85 and over 18
Less than 65 38

Conditions of Medicare patients treated by Dr. John M. Clark, MD in 2021

Hypertension 57
High Cholesterol 30
Stroke 0
Ischemic Heart Disease 35
Depression 14
Chronic Kidney Disease 34
Asthma 15
Osteoperosis 14
Atrial Fibrilation 8
Heart Failure 33
Chronic Obstructive Pulmonary Disease 64
Diabetes 30
Dementia 10
Cancer 16

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. John M. Clark, MD treated as a pulmonologist in Anchorage, AK during 2022 were pulmonary testing.

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

doctor visit 405
pulmonary testing 182

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. John M. Clark, MD.

Gender
Male 128
Female 171
Ethnicity
Non-Hispanic White 0
Black 0
Hispanic 0
Asian 0
Other 27
Native American 254
Age
From 65 to 74 170
From 75 to 84 78
85 and over 19
Less than 65 32

Conditions of Medicare patients treated by Dr. John M. Clark, MD in 2022

Hypertension 72
High Cholesterol 45
Stroke 5
Ischemic Heart Disease 19
Depression 15
Chronic Kidney Disease 19
Asthma 28
Osteoperosis 15
Atrial Fibrilation 16
Heart Failure 19
Chronic Obstructive Pulmonary Disease 71
Diabetes 29
Dementia 4
Cancer 17

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2022

Volume of procedures performed by Dr. John M. Clark, MD for Medicare patients.

The highest averages for the top procedures that Dr. John M. Clark, MD treated as a pulmonologist in Anchorage, AK were pulmonary testing, hospital care and inpatient care.

doctor visit 459
hospital care 124
inpatient care 124
pulmonary testing 169

Average Medicare Patient Data From 2012 - 2022

Information about Medicare patients treated by Dr. John M. Clark, MD.

Gender
Male 145
Female 167
Ethnicity
Black / African American 4
Asian / Pacific Islander 6
Non-Hispanic White 136
Hispanic 2
Native American / Alaskan Native 116
Other 4
Age
75 to 84 94
85 and over 23
Less than 65 35
65 to 74 153

Average of Total of Conditions of Medicare patients treated by Dr. John M. Clark, MD From 2012 - 2022

The highest averages of the most common conditions of Medicare patients that Dr. John M. Clark, MD treated were chronic obstructive pulmonary disease, hypertension, high cholesterol and ischemic heart disease.

Hypertension 56
High Cholesterol 34
Stroke 0
Ischemic Heart Disease 32
Depression 14
Chronic Kidney Disease 25
Asthma 21
Osteoporosis 9
Heart Failure 26
Chronic Obstructive Pulmonary Disease 56
Diabetes 26
Atrial Fibrillation 12
Cancer 13
Dementia 5

Education & Training

Dr. John M. Clark, MD graduated from University of Washington School of Medicine in 1988. He completed residency at University of Washington Affiliated Hospitals. He is certified by the American Board of Internal Medicine, Internal Medicine and has a state license in Alaska.

Medical School: University of Washington School of Medicine (1988)

Residency: University of Washington Affiliated Hospitals (1991)

Board Certification: American Board of Internal Medicine, Internal Medicine

Licensed In: Alaska

Affiliations & Hospitals

Dr. John M. Clark, MD is associated with these hospitals and organizations:

Providence
Providence Alaska Medical Center
ALASKA NATIVE TRIBAL HEALTH CONSORTIUM

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General Payments

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

Payments by Company
Insmed, Inc. $199 Arikayce
$199
GlaxoSmithKline, LLC. $125 ANORO ELLIPTA
$125
Merck Sharp & Dohme Corporation $125 KEYTRUDA
$125
GENZYME CORPORATION $117
$117
Actelion Pharmaceuticals US, Inc. $117 OPSUMIT
$117
Other $438 XALKORI
$100 		Zemaira
$96 		TEZSPIRE
$83 		OPDIVO
$81 		Actimmune
$26 		Other
$52
Types of Payments
Food and Beverage $895
Education $225

Biography

Dr. John Clark, who practices in Anchorage, AK, is a medical specialist in adult pulmonology. Before completing his residency at a hospital affiliated with the University of Washington, Dr. Clark attended medical school at the University of Washington School of Medicine. His areas of clinical interest consist of pain, gestalt therapy, and seasonal affective disorder (SAD). Dr. Clark is professionally affiliated with Providence Alaska Medical Center.

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