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Dr. Gregory W. Allen, PHD, MD

Accepting New Patients

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Specializes in: Radiation Oncology
Loma Linda University School of Medicine (2002)
Professional interests include: stereotactic body radiation therapy (SBRT), Gamma Knife radiosurgery, intensity-modulated radiation therapy (IMRT), and more.
4525 3rd Avenue Se Suite 100
Lacey, WA 98503

Dr. Gregory W. Allen, PHD, MD is a radiation oncologist in Centralia, WA specializing in radiation oncology. He graduated from Loma Linda University School of Medicine in 2002 and has 24 years of experience. Dr. Gregory W. Allen, PHD, MD is affiliated with Providence.

View Doctor's Full Profile (360) 412-8960

Office Locations

2015 Cooks Hill Road
Centralia, WA 98531
open_in_new
4525 3rd Avenue Se Suite 100
Lacey, WA 98503
(360) 412-8960
(360) 412-8970
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Some issues Dr. Gregory W. Allen, PHD, MD can help you with:

External Beam Radiation Therapy (EBRT)

External beam radiation therapy (EBRT) is a type of cancer treatment that delivers radiation from outside of the body. The goal of EBRT is to destroy cancer cells and shrink tumors, although it may also be used to alleviate symptoms rather than cure cancer.

EBRT can be delivered through several different methods, which may be combined or used alone. The type and length of treatment vary based on the location of the cancer or tumor and its size. Techniques for EBRT include:

  • Conventional external beam radiation therapy, which delivers a single beam of radiation from multiple directions. Conventional EBRT is commonly used to treat brain tumors, particularly when the entire brain needs treatment.
  • Intensity-modulated radiation therapy (IMRT), which uses smaller beams with adjustable intensity levels, so the most intense beams can be directed at the tumor. IMRT is used in several types of cancers, including prostate, gastrointestinal, brain, and lung cancers.
  • Orthovoltage, which uses low energy X-rays that do not penetrate the skin very deeply. Orthovoltage is typically used for skin cancers or other skin conditions.
  • Proton therapy, which uses a particle accelerator to deliver positively charged particles (protons) for cancer treatment. Proton beams can be controlled more precisely than X-rays, so there is less risk of damage to healthy tissue. This makes proton therapy a good option for younger patients, as other types of EBRT pose long-term risks such as growth problems and heart disease.
  • Stereotactic radiosurgery (SRS), which is a non-surgical type of radiation therapy that uses 3-D imaging to directly target tumors and avoid healthy tissue. SRS is often used for small tumors, particularly those in the brain (cranial radiosurgery) and spine (spinal radiosurgery). When performed outside of the brain and spine, it is called stereotactic body radiation therapy (SBRT).

Typically, patients will undergo treatment for five days a week over the course of several weeks, and they should be able to go home the same day. Each session can take less than an hour, with most of the time spent determining proper positioning of the body. Actual delivery of the radiation may only take a few minutes, and patients will wear a lead shield to protect healthy body tissues while receiving their treatment.

EBRT is painless, but it does come with some side effects, such as fatigue. Over the course of the therapy, oncologists will monitor patients' conditions and adjust their dosage, number of sessions, and length of treatment based on their body's response to the radiation.

Medicare Procedure and Patient Information

2012 Medicare Procedure Volume

The top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA during 2012 were radiation therapy.

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 519
radiation therapy 1779

Medicare Procedure and Patient Information

2013 Medicare Procedure Volume

The top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA during 2013 were radiation therapy.

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 404
radiation therapy 1291

2013 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 190
Female 137
Ethnicity
Non-Hispanic White 310
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 163
From 75 to 84 108
85 and over 31
Less than 65 25

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2013

Hypertension 62
High Cholesterol 43
Stroke 0
Ischemic Heart Disease 32
Depression 17
Chronic Kidney Disease 27
Asthma 7
Osteoperosis 6
Atrial Fibrilation 12
Heart Failure 20
Chronic Obstructive Pulmonary Disease 21
Diabetes 31
Dementia 7
Cancer 75

Medicare Procedure and Patient Information

2014 Medicare Procedure Volume

The top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA during 2014 were radiation therapy.

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 404
radiation therapy 1531

2014 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 196
Female 177
Ethnicity
Non-Hispanic White 346
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 179
From 75 to 84 127
85 and over 34
Less than 65 33

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2014

Hypertension 62
High Cholesterol 44
Stroke 0
Ischemic Heart Disease 29
Depression 23
Chronic Kidney Disease 28
Asthma 8
Osteoperosis 6
Atrial Fibrilation 12
Heart Failure 19
Chronic Obstructive Pulmonary Disease 22
Diabetes 27
Dementia 5
Cancer 70

Medicare Procedure and Patient Information

2015 Medicare Procedure Volume

The top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA during 2015 were radiation therapy.

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 369
radiation therapy 18

2015 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 284
Female 272
Ethnicity
Non-Hispanic White 520
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 300
From 75 to 84 162
85 and over 42
Less than 65 52

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2015

Hypertension 62
High Cholesterol 46
Stroke 0
Ischemic Heart Disease 26
Depression 19
Chronic Kidney Disease 24
Asthma 13
Osteoperosis 5
Atrial Fibrilation 14
Heart Failure 17
Chronic Obstructive Pulmonary Disease 22
Diabetes 23
Dementia 8
Cancer 72

Medicare Procedure and Patient Information

2016 Medicare Procedure Volume

The top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA during 2016 were radiation therapy.

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 406
radiation therapy 13

2016 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 182
Female 141
Ethnicity
Non-Hispanic White 303
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 172
From 75 to 84 92
85 and over 23
Less than 65 36

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2016

Hypertension 61
High Cholesterol 38
Stroke 0
Ischemic Heart Disease 32
Depression 20
Chronic Kidney Disease 27
Asthma 23
Osteoperosis 8
Atrial Fibrilation 10
Heart Failure 19
Chronic Obstructive Pulmonary Disease 22
Diabetes 24
Dementia 6
Cancer 67

Medicare Procedure and Patient Information

2017 Medicare Procedure Volume

The top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA during 2017 were radiation therapy.

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 468
radiation therapy 15

2017 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 203
Female 132
Ethnicity
Non-Hispanic White 302
Black 0
Hispanic 0
Asian 0
Other 13
Native American 0
Age
From 65 to 74 163
From 75 to 84 103
85 and over 36
Less than 65 33

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2017

Hypertension 64
High Cholesterol 44
Stroke 6
Ischemic Heart Disease 27
Depression 20
Chronic Kidney Disease 33
Asthma 5
Osteoperosis 6
Atrial Fibrilation 12
Heart Failure 19
Chronic Obstructive Pulmonary Disease 26
Diabetes 29
Dementia 7
Cancer 70

Medicare Procedure and Patient Information

2018 Medicare Procedure Volume

The top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA during 2018 were radiation therapy.

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 388
radiation therapy 22

2018 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 179
Female 119
Ethnicity
Non-Hispanic White 275
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 151
From 75 to 84 92
85 and over 27
Less than 65 28

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2018

Hypertension 67
High Cholesterol 47
Stroke 4
Ischemic Heart Disease 29
Depression 20
Chronic Kidney Disease 27
Asthma 5
Osteoperosis 6
Atrial Fibrilation 14
Heart Failure 21
Chronic Obstructive Pulmonary Disease 23
Diabetes 26
Dementia 6
Cancer 69

Medicare Procedure and Patient Information

2019 Medicare Procedure Volume

The top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA during 2019 were radiation therapy.

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 388
radiation therapy 17

2019 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 170
Female 132
Ethnicity
Non-Hispanic White 272
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 136
From 75 to 84 125
85 and over 23
Less than 65 18

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2019

Hypertension 71
High Cholesterol 49
Stroke 4
Ischemic Heart Disease 29
Depression 24
Chronic Kidney Disease 33
Asthma 6
Osteoperosis 7
Atrial Fibrilation 13
Heart Failure 23
Chronic Obstructive Pulmonary Disease 26
Diabetes 29
Dementia 7
Cancer 67

Medicare Procedure and Patient Information

2020 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 307

2020 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 159
Female 130
Ethnicity
Non-Hispanic White 259
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 140
From 75 to 84 109
85 and over 26
Less than 65 14

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2020

Hypertension 66
High Cholesterol 46
Stroke 0
Ischemic Heart Disease 29
Depression 21
Chronic Kidney Disease 29
Asthma 4
Osteoperosis 6
Atrial Fibrilation 12
Heart Failure 20
Chronic Obstructive Pulmonary Disease 24
Diabetes 25
Dementia 10
Cancer 72

Medicare Procedure and Patient Information

2021 Medicare Procedure Volume

The top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA during 2021 were radiation therapy.

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 406
radiation therapy 22

2021 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 162
Female 159
Ethnicity
Non-Hispanic White 295
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 159
From 75 to 84 111
85 and over 35
Less than 65 16

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2021

Hypertension 63
High Cholesterol 48
Stroke 4
Ischemic Heart Disease 32
Depression 17
Chronic Kidney Disease 34
Asthma 5
Osteoperosis 10
Atrial Fibrilation 12
Heart Failure 16
Chronic Obstructive Pulmonary Disease 25
Diabetes 28
Dementia 7
Cancer 75

Medicare Procedure and Patient Information

2022 Medicare Procedure Volume

The top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA during 2022 were radiation therapy.

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 412
radiation therapy 17

2022 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 161
Female 138
Ethnicity
Non-Hispanic White 279
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 129
From 75 to 84 128
85 and over 25
Less than 65 17

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2022

Hypertension 70
High Cholesterol 68
Stroke 7
Ischemic Heart Disease 27
Depression 17
Chronic Kidney Disease 18
Asthma 8
Osteoperosis 12
Atrial Fibrilation 21
Heart Failure 19
Chronic Obstructive Pulmonary Disease 29
Diabetes 25
Dementia 0
Cancer 75

Medicare Procedure and Patient Information

2023 Medicare Procedure Volume

The top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA during 2023 were radiation therapy.

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 326
radiation therapy 14

2023 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 142
Female 138
Ethnicity
Non-Hispanic White 253
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 144
From 75 to 84 99
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2023

Hypertension 70
High Cholesterol 64
Stroke 7
Ischemic Heart Disease 23
Depression 19
Chronic Kidney Disease 20
Asthma 8
Osteoperosis 13
Atrial Fibrilation 22
Heart Failure 16
Chronic Obstructive Pulmonary Disease 26
Diabetes 24
Dementia 5
Cancer 75

Medicare Procedure and Patient Information

2024 Medicare Procedure Volume

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

doctor visit 374

2024 Medicare Patient Data

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 179
Female 123
Ethnicity
Non-Hispanic White 274
Black 0
Hispanic 0
Asian 0
Other 0
Native American 0
Age
From 65 to 74 131
From 75 to 84 130
85 and over 0
Less than 65 0

Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD in 2024

Hypertension 72
High Cholesterol 67
Stroke 7
Ischemic Heart Disease 24
Depression 15
Chronic Kidney Disease 20
Asthma 9
Osteoperosis 13
Atrial Fibrilation 21
Heart Failure 16
Chronic Obstructive Pulmonary Disease 26
Diabetes 30
Dementia 4
Cancer 75

Medicare Procedure and Patient Information

Average Medicare Procedure Volume From 2012 - 2024

Volume of procedures performed by Dr. Gregory W. Allen, PHD, MD for Medicare patients.

The highest averages for the top procedures that Dr. Gregory W. Allen, PHD, MD treated as a radiation oncologist in Centralia, WA were radiation therapy.

doctor visit 397
radiation therapy 430

Average Medicare Patient Data From 2012 - 2024

Information about Medicare patients treated by Dr. Gregory W. Allen, PHD, MD.

Gender
Male 169
Female 138
Ethnicity
Black / African American 0
Asian / Pacific Islander 0
Non-Hispanic White 283
Native American / Alaskan Native 0
Hispanic 0
Other 1
Age
75 to 84 106
85 and over 23
Less than 65 20
65 to 74 151

Average of Total of Conditions of Medicare patients treated by Dr. Gregory W. Allen, PHD, MD From 2012 - 2024

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

Hypertension 60
High Cholesterol 46
Stroke 3
Ischemic Heart Disease 26
Depression 17
Chronic Kidney Disease 24
Asthma 7
Osteoporosis 7
Heart Failure 17
Chronic Obstructive Pulmonary Disease 22
Diabetes 24
Atrial Fibrillation 13
Dementia 5
Cancer 66

Education & Training

Dr. Gregory W. Allen, PHD, MD graduated from Loma Linda University School of Medicine in 2002. He completed residency at University of Wisconsin Hospital and Clinics. He is certified by the American Board of Radiology, Radiation Oncology and has a state license in Washington.

Medical School: Loma Linda University School of Medicine (2002)

Residency: University of Wisconsin Hospital and Clinics (2007)

Board Certification: American Board of Radiology, Radiation Oncology

Licensed In: Washington

Affiliations & Hospitals

Dr. Gregory W. Allen, PHD, MD is associated with these hospitals and organizations:

Providence

Ratings & Reviews

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General Payments

These charts describe general payments received by Dr. Gregory W. Allen, PHD, MD. Doctors may receive payments for a number of reasons, including meal compensation, travel compensation, and consulting.

Payments by Company
Novocure Inc. $27 Optune
$27
Types of Payments
Food and Beverage $27

Research Payments

Dr. Gregory W. Allen, PHD, MD has received 4 research payments totaling $17,553.

Biography

Dr. Gregory Allen is a radiation oncology specialist. Dr. Allen's areas of expertise include the following: intensity-modulated radiation therapy (IMRT), brachytherapy (seed implants), and gamma knife radiosurgery. He graduated from Loma Linda University School of Medicine and then he performed his residency at the University of Wisconsin Hospital and Clinics. His professional affiliations include Providence St. Peter Hospital, Providence Centralia Hospital, and Swedish Medical Center. His practice in is open to new patients as reported by Providence.

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