Dr. Katharine F. Marshall, MD
- Part D claims, 2024
- 498
- Affiliated sites
- 1
- Medical group
- 1
- State license
- 1
- Year NPI issued
- 2016
- Practice address
- 500 NE Multnomah St, Portland, OR 97232
- Practice phone
- Call (503) 813-2440
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Kaiser Foundation Health Plan of the Northwest
Portland, Oregon
Find Dr. 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.
Dr. Katharine F. Marshall is an internist in Portland, Oregon
Dr. Marshall practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon.
Dr. Marshall's NPI, 1891143327, was assigned on May 25, 2016. Dr. Marshall graduated from Oregon Health Sciences University School of Medicine in 2016. Dr. Marshall holds Oregon license MD194144.
- NPI
- 1891143327NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648563445
- NPI enumeration date
- May 25, 2016
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (503) 813-2440
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 36
- Medical school graduation
- 2016
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Katharine F. Marshall practices at Kaiser Foundation Health Plan of the Northwest in Portland, Oregon
Dr. Marshall's primary practice is Kaiser Foundation Health Plan of the Northwest, at 500 NE Multnomah St, Portland, OR 97232 in Multnomah County. The practice phone is (503) 813-2440.
- Kaiser Foundation Health Plan of the Northwest500 NE Multnomah St, Portland, OR 97232 · Multnomah CountyPhone(503) 813-2440
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Katharine F. Marshall is affiliated with 2 sites of care and 1 medical group
Dr. Marshall's primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. The medical group on file is Kaiser Permanente Northwest. Dmand AI also links Dr. Marshall to 1 more ambulatory surgery center, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Katharine F. Marshall's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Marshall practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Foundation Health Plan of the Northwest | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Katharine F. Marshall is one of 1,680 internists in Oregon
Internal medicine is Dr. Marshall's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Marshall is licensed in Oregon.
Specialties and state licenses
- Internal medicine, OregonPrimary
Internists near Dr. 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
Dr. Katharine F. Marshall's patients have a median age of 43
Across all payers, Dmand AI patient panel data puts Dr. Marshall's median patient age at 43, with 43% women.
Dr. 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 43
Patient panel by sex, all payers
- Women43%
- Men55%
Source: Dmand AI Patient Panel Data
Dr. Katharine F. Marshall wrote 498 Medicare Part D claims in 2024
In 2024, Dr. Marshall wrote 498 Medicare Part D claims for 197 patients. 99% of them were for generic drugs. CMS names the drug for 401 of them, across 5 drugs with 11 or more claims each, at $31,436 in total drug cost. In 2023, CMS named 509 claims across 7 drugs.
Dr. Marshall's Part D claims by kind of drug, 2024
- Generic492 claims99%
- Brand-name and other6 claims1%
Dr. 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.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5092024: 40121%
Drugs named by CMS: 5 in 2024, 7 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
How Dr. Katharine F. Marshall takes part in Medicare
Dr. Marshall accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Katharine F. Marshall graduated from Oregon Health Sciences University School of Medicine
Dr. Marshall graduated from Oregon Health Sciences University School of Medicine in 2016.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Katharine F. 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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel Data |
| 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) |
| 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. Katharine F. 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 Dr. Katharine F. Marshall's NPI number?
Dr. Katharine F. Marshall's NPI number is 1891143327. It was assigned on May 25, 2016, and it is active in the NPI Registry.
What kind of doctor is Dr. Katharine F. Marshall?
Dr. Katharine F. Marshall is an internist in Portland, Oregon. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Katharine F. Marshall practice?
Dr. Marshall practices at 500 NE Multnomah St, Portland, OR 97232. Dr. Marshall's primary practice is Kaiser Foundation Health Plan of the Northwest in Portland, Oregon. Dmand AI also links Dr. Marshall to 1 ambulatory surgery center.
What is Dr. Katharine F. Marshall's office phone number?
The practice phone on file for Dr. Marshall is (503) 813-2440.
What is Dr. Katharine F. Marshall's medical license number?
Dr. Marshall holds Oregon license MD194144.
What medical group is Dr. Katharine F. Marshall part of?
Dr. Marshall is linked to Kaiser Permanente Northwest.
Does Dr. Katharine F. Marshall accept Medicare?
Yes. CMS lists Dr. Marshall as accepting Medicare assignment.
Where did Dr. Katharine F. Marshall go to medical school?
Dr. Marshall graduated from Oregon Health Sciences University School of Medicine in 2016.
What drugs does Dr. Katharine F. Marshall prescribe most?
In 2024 Medicare Part D data, Dr. Marshall's most prescribed drugs by claims were Buprenorphine-Naloxone, Buprenorphine HCl and Naltrexone HCl.
How long has Dr. Katharine F. Marshall been practicing?
Dr. Marshall graduated from medical school in 2016, 10 years ago.
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