Brian J. Marshall
- Medicare services, 2024
- 436
- Medicare patients, 2024
- 157
- Part D claims, 2024
- 302
- MIPS score, 2024
- 91
- Hospital affiliations
- 5
- Practice address
- 3600 NW Samaritan Drive, Corvallis, OR 97339
- Practice phone
- Call (541) 768-5111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Brian Marshall'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.
Brian J. Marshall is an internist in Corvallis, Oregon
Brian Marshall practices at Good Samaritan Regional Medical Center in Corvallis, Oregon, part of MultiCare Health System.
Brian Marshall's NPI, 1407475007, was assigned on April 13, 2020. Brian Marshall holds Oregon license DO216717.
- NPI
- 1407475007NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8123440575
- NPI enumeration date
- April 13, 2020
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (541) 768-5111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Brian J. Marshall practices at Good Samaritan Regional Medical Center in Corvallis, Oregon
Brian Marshall's primary practice is Good Samaritan Regional Medical Center, at 3600 NW Samaritan Drive, Corvallis, OR 97339 in Benton County. The practice phone is (541) 768-5111.
- Good Samaritan Regional Medical Center3600 NW Samaritan Drive, Corvallis, OR 97339 · Benton CountyPhone(541) 768-5111
Source: Dmand AI Affiliation Data
Brian J. Marshall is affiliated with 5 sites of care and 1 medical group
Brian Marshall's primary practice is Good Samaritan Regional Medical Center in Corvallis, Oregon, part of MultiCare Health System. Brian Marshall is also affiliated with Samaritan Albany General Hospital. The medical group on file is Good Samaritan Regional Medical Center. Dmand AI also links Brian Marshall to 3 more hospitals, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Brian J. Marshall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Brian Marshall practices, 5 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Good Samaritan Regional Medical Center | Available with a free account |
| +4 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across MultiCare Health System and 6.2K+ hospitals, with verified contacts in the same login.
Brian J. Marshall is one of 1,680 internists in Oregon
Internal medicine is Brian Marshall's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Brian Marshall is licensed in Oregon.
Specialties and state licenses
- Internal medicine, OregonPrimary
Internists near Brian Marshall
Counts of internists 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
Brian J. Marshall billed Medicare for 436 services in 2024
CMS data shows 436 Medicare services from Brian Marshall across 5 procedure codes in 2024, for 157 Medicare patients. Medicare paid $33,742 for them. Every service was in a facility, such as a hospital, rather than an office.
Brian Marshall's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 772024: 388404%
- Other services
- 2023: 02024: 48
Brian Marshall compared with the Oregon median for internists, 2024
- Brian Marshall
- Oregon median
- Medicare services
- 436vs 30045% above
- Medicare patients
- 157vs 13219% above
- Part D claims
- 49vs 22278% below
Medians across 1,791 internists in Oregon with Dmand AI profiles that report each measure.
Brian Marshall'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.
Need commercial claims for Brian Marshall?
Medicare shows one payer. Book a meeting to get commercial claims data for Brian Marshall and other internists in Oregon.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Brian J. Marshall treated 157 Medicare patients in 2024, average age 74
CMS counts 157 Medicare patients who saw Brian Marshall in 2024. The largest group is 65 to 74, with 57 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 29% are also on Medicaid. Their average risk score is 1.75, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Brian Marshall's median patient age at 68, with 52% women.
Brian Marshall's Medicare patients by age, 2024
Brian Marshall's Medicare patients by sex, 2024
- Women7648%
- Men8152%
Chronic conditions among Brian Marshall's Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis49%
- Heart failure46%
- Mood disorders43%
- Atrial fibrillation42%
- Diabetes42%
- Depression40%
Share of Medicare patients with each condition. A patient can have several.
Brian Marshall's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women52%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Brian J. Marshall wrote 302 Medicare Part D claims in 2024
In 2024, Brian Marshall wrote 302 Medicare Part D claims for 91 patients. 82% of them were for generic drugs. CMS names the drug for 49 of them, across 4 drugs with 11 or more claims each, at $742 in total drug cost. In 2023, CMS named 137 claims across 9 drugs.
Brian Marshall's Part D claims by kind of drug, 2024
- Generic248 claims82%
- Brand-name and other54 claims18%
Brian Marshall'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.
Drug classes CMS tracks in Brian Marshall's Part D claims, 2024
- Antibiotics11%32 of 302 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 1372024: 4964%
Drugs named by CMS: 4 in 2024, 9 in 2023.
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
Brian J. Marshall scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Brian Marshall for performance year 2024, reported as part of a group. Brian Marshall accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Brian Marshall's MIPS scores, performance year 2024
- 91of 100Final score
- 85.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 78of 100Cost
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
For MedTech and pharma teams
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Brian J. Marshall received $65 in industry payments from 2021 to 2022
CMS Open Payments shows 3 general payments to Brian Marshall from 2 drug and device companies from 2021 to 2022. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $35.
General payments to Brian Marshall by program year, 2021 to 2022
Companies that paid Brian Marshall the most, 2021 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Brian J. Marshall'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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 Brian J. Marshall
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Brian J. Marshall's NPI number?
Brian J. Marshall's NPI number is 1407475007. It was assigned on April 13, 2020, and it is active in the NPI Registry.
What does Brian J. Marshall specialize in?
Brian J. Marshall is an internist in Corvallis, Oregon. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Brian J. Marshall practice?
Brian Marshall practices at 3600 NW Samaritan Drive, Corvallis, OR 97339. Brian Marshall's primary practice is Good Samaritan Regional Medical Center in Corvallis, Oregon, part of MultiCare Health System. Dmand AI also links Brian Marshall to 3 hospitals.
What is Brian J. Marshall's office phone number?
The practice phone on file for Brian Marshall is (541) 768-5111.
What is Brian J. Marshall's medical license number?
Brian Marshall holds Oregon license DO216717.
Which hospitals is Brian J. Marshall affiliated with?
Brian Marshall practices at Good Samaritan Regional Medical Center in Corvallis, Oregon. Brian Marshall is also affiliated with Samaritan Albany General Hospital. Dmand AI links Brian Marshall to 3 more hospitals.
What medical group is Brian J. Marshall part of?
Brian Marshall is linked to Good Samaritan Regional Medical Center.
Does Brian J. Marshall accept Medicare?
Yes. CMS data shows Brian Marshall billed Medicare for 436 services in 2024, and Brian Marshall accepts Medicare assignment.
What is Brian J. Marshall's MIPS score?
Brian Marshall's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Brian J. Marshall see?
CMS counts 157 Medicare patients who saw Brian Marshall in 2024, with an average age of 74.
Show 4 more questionsShow fewer questions
What services does Brian J. Marshall bill to Medicare?
In 2024, Brian Marshall's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99223).
What drugs does Brian J. Marshall prescribe most?
In 2024 Medicare Part D data, Brian Marshall's most prescribed drugs by claims were Carvedilol, Gabapentin and Quetiapine Fumarate.
Has Brian J. Marshall received payments from drug or device companies?
CMS Open Payments shows $65 in general payments to Brian Marshall from 2 companies from 2021 to 2022. The largest total came from Amgen Inc.
How long has Brian J. Marshall been practicing?
Brian Marshall graduated from medical school in 2020, 6 years ago.
Selling to internal medicine practices?
See internists in Oregon by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card