Dr. Joshua M. Walker, MD, PhD
- Medicare services, 2024
- 612
- Medicare patients, 2024
- 198
- Part D claims, 2024
- 35
- Publications
- 20
- MIPS score, 2024
- 99
- Practice address
- 3181 SW Sam Jackson Park Road, Portland, OR 97239
- Practice phone
- Call (503) 494-9000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Walker's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Joshua M. Walker is a radiation oncologist in Portland, Oregon
Dr. Walker practices at OHSU Hospital in Portland, Oregon, part of State of Oregon.
Dr. Walker's NPI, 1962848655, was assigned on May 21, 2013. Dr. Walker graduated from Oregon Health Sciences University School of Medicine in 2013. Dr. Walker holds Oregon license MD189059.
- NPI
- 1962848655NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5698900504
- NPI enumeration date
- May 21, 2013
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (503) 494-9000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 39
- Medical school graduation
- 2013
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Joshua M. Walker practices at OHSU Hospital in Portland, Oregon
Dr. Walker's primary practice is OHSU Hospital, at 3181 SW Sam Jackson Park Road, Portland, OR 97239 in Multnomah County. The practice phone is (503) 494-9000.
- OHSU Hospital3181 SW Sam Jackson Park Road, Portland, OR 97239 · Multnomah CountyPhone(503) 494-9000
Source: Dmand AI Affiliation Data
Dr. Joshua M. Walker is affiliated with 5 sites of care and 2 medical groups
Dr. Walker's primary practice is OHSU Hospital in Portland, Oregon, part of State of Oregon. Dr. Walker is also affiliated with Asante Rogue Regional Medical Center. The medical group on file is Oregon Health & Science University (OHSU). Dmand AI also links Dr. Walker to 2 more hospitals, 1 clinical lab and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Joshua M. Walker's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Walker practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OHSU Hospital | Available with a free account |
| +4 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Joshua M. Walker is one of 98 radiation oncologists in Oregon
Radiation oncology is Dr. Walker's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Walker is licensed in Oregon.
Specialties and state licenses
- Radiation oncology, OregonPrimary
Radiation oncologists near Dr. Walker
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Joshua M. Walker billed Medicare for 612 services in 2024
CMS data shows 612 Medicare services from Dr. Walker across 12 procedure codes in 2024, for 198 Medicare patients. Medicare paid $44,794 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Walker's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 2022024: 537166%
- Office and hospital visits
- 2023: 632024: 7519%
Dr. Walker compared with the Oregon median for radiation oncologists, 2024
- Dr. Walker
- Oregon median
- Medicare services
- 612vs 83927% below
- Medicare patients
- 198vs 14041% above
- Part D claims
- 19vs 4760% below
Medians across 99 radiation oncologists in Oregon with Dmand AI profiles that report each measure.
Dr. Walker's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Walker and other radiation oncologists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Joshua M. Walker treated 198 Medicare patients in 2024, average age 72
CMS counts 198 Medicare patients who saw Dr. Walker in 2024. The largest group is 65 to 74, with 92 patients. 65% of them have cancer, and 63% have high blood pressure. 22% are also on Medicaid. Their average risk score is 1.83, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Walker's median patient age at 73, with 43% women.
Dr. Walker's Medicare patients by age, 2024
Dr. Walker's Medicare patients by sex, 2024
- Women8543%
- Men11357%
Chronic conditions among Dr. Walker's Medicare patients, 2024
- Cancer65%
- High blood pressure63%
- High cholesterol59%
- Arthritis27%
- Mood disorders26%
- Anxiety25%
- Ischemic heart disease25%
- Diabetes24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Walker's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women43%
- Men57%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Joshua M. Walker wrote 35 Medicare Part D claims in 2024
In 2024, Dr. Walker wrote 35 Medicare Part D claims for 29 patients. 100% of them were for generic drugs. CMS names the drug for 19 of them, across 1 drug with 11 or more claims each, at $307 in total drug cost.
Dr. Walker's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Joshua M. Walker scored 99 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 99 out of 100 for Dr. Walker for performance year 2024, reported through an alternative payment model (APM). Dr. Walker accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Walker as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Walker's MIPS scores, performance year 2024
- 99of 100Final score
- 84.3of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Joshua M. Walker has 20 publications on record
Dmand AI links 20 papers to Dr. Walker, published from 2012 to 2024. 2012 was the busiest year, with 2. The most frequent topics are CD8-Positive T-Lymphocytes, Cell Line, Tumor and Cytokines. Dr. Walker has published most often in Cancer Gene Ther. Dr. Walker's most frequent co-authors are Prakash Ambady, MD, Albert Attia, MD and Alexander Bagley.
Dr. Walker's papers by year, 2012 to 2024
Topics Dr. Walker writes about most
- CD8-Positive T-Lymphocytes
- Cell Line, Tumor
- Cytokines
- Immunotherapy
- Radiosurgery
- Antineoplastic Agents, Immunological
- Brain Neoplasms
- Lung Neoplasms
Dr. Walker's most frequent co-authors
Recent publications by Dr. Walker
Adv Healthc Mater
Wiley Interdiscip Rev Nanomed Nanobiotechnol
See who Dr. Walker researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Walker works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Joshua M. Walker received $11,256 in industry payments from 2016 to 2025
CMS Open Payments shows 33 general payments to Dr. Walker from 11 drug and device companies from 2016 to 2025. Honoraria make up the largest share, 58% of the total. Novocure Inc. paid the most, $8,406.
General payments to Dr. Walker by program year, 2016 to 2025
General payments to Dr. Walker by kind, 2016 to 2025
- Honoraria$6,50058%
- Travel and lodging$3,53031%
- Food and beverage$1,22611%
Companies that paid Dr. Walker the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Joshua M. Walker graduated from Oregon Health Sciences University School of Medicine
Dr. Walker graduated from Oregon Health Sciences University School of Medicine in 2013.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Joshua M. Walker's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Joshua M. Walker
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Joshua M. Walker's NPI number?
Dr. Joshua M. Walker's NPI number is 1962848655. It was assigned on May 21, 2013, and it is active in the NPI Registry.
What kind of doctor is Dr. Joshua M. Walker?
Dr. Joshua M. Walker is a radiation oncologist in Portland, Oregon. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Joshua M. Walker practice?
Dr. Walker practices at 3181 SW Sam Jackson Park Road, Portland, OR 97239. Dr. Walker's primary practice is OHSU Hospital in Portland, Oregon, part of State of Oregon. Dmand AI also links Dr. Walker to 2 hospitals, 1 clinical lab and 1 medical group.
What is Dr. Joshua M. Walker's office phone number?
The practice phone on file for Dr. Walker is (503) 494-9000.
What is Dr. Joshua M. Walker's medical license number?
Dr. Walker holds Oregon license MD189059.
Which hospitals is Dr. Joshua M. Walker affiliated with?
Dr. Walker practices at OHSU Hospital in Portland, Oregon. Dr. Walker is also affiliated with Asante Rogue Regional Medical Center. Dmand AI links Dr. Walker to 2 more hospitals.
What medical group is Dr. Joshua M. Walker part of?
Dr. Walker is linked to Oregon Health & Science University (OHSU). Dmand AI links Dr. Walker to 1 more medical group.
Does Dr. Joshua M. Walker accept Medicare?
Yes. CMS data shows Dr. Walker billed Medicare for 612 services in 2024, and Dr. Walker accepts Medicare assignment.
Does Dr. Joshua M. Walker offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Walker as offering telehealth services.
What is Dr. Joshua M. Walker's MIPS score?
Dr. Walker's MIPS final score for performance year 2024 is 99 out of 100, reported through an alternative payment model (APM).
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. Joshua M. Walker see?
CMS counts 198 Medicare patients who saw Dr. Walker in 2024, with an average age of 72.
What services does Dr. Joshua M. Walker bill to Medicare?
In 2024, Dr. Walker's most billed Medicare services were radiation oncology (77014), radiation oncology (77300) and radiation oncology (77334).
Where did Dr. Joshua M. Walker go to medical school?
Dr. Walker graduated from Oregon Health Sciences University School of Medicine in 2013.
What drugs does Dr. Joshua M. Walker prescribe most?
In 2024 Medicare Part D data, Dr. Walker's most prescribed drugs by claims were Dexamethasone.
Has Dr. Joshua M. Walker received payments from drug or device companies?
CMS Open Payments shows $11,256 in general payments to Dr. Walker from 11 companies from 2016 to 2025. The largest total came from Novocure Inc.
How long has Dr. Joshua M. Walker been practicing?
Dr. Walker graduated from medical school in 2013, 13 years ago.
Does Dr. Joshua M. Walker do research?
Dmand AI links 20 publications to Dr. Walker, published from 2012 to 2024.
Who does Dr. Joshua M. Walker publish with?
Dr. Walker's most frequent co-authors are Prakash Ambady, MD (2 shared papers), Albert Attia, MD (1 shared paper) and Alexander Bagley (1 shared paper).
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