Dr. Katharine F. Marshall
Dr. Katharine F. Marshall
Last updated: Jan 14, 2026

Dr. Katharine F. Marshall

  • Gender: Female
  • Sole propriator: No
  • NPI: 1891143327

Dr. Katharine F. Marshall MD

Internist

She is located at 3500 North Interstate Avenue in Portland, OR 97227. Can help patients with the following: Atherosclerosis, Fever, Hyperlipidemia, Nausea and Vomiting, Osteoporosis, Prescription Refill. Her National Provider Identifier (NPI) number is 1891143327. Appointment can be made via the phone number (800) 813-2000.

Conditions treated

Dr. Katharine F. Marshall, being an internist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Katharine F. Marshall.

  • Abdominal Pain
  • Acute Pain
  • Anemia
  • Arthritis
  • Asthma
  • Atherosclerosis
  • Bladder Control
  • Chest Pain
  • Cholecystitis
  • Chronic Obstructive Pulmonary Disease (COPD)
  • Common Cold
  • Constipation
  • Cystitis
  • Diarrhea
  • Edema
  • Fever
  • Gastroesophageal Reflux Disease (GERD)
  • General Care
  • Headache
  • Heart Disease
  • Hiatal Hernia
  • High Blood Pressure
  • Hot Flashes
  • Hyperlipidemia
  • Hyponatremia
  • Influenza
  • Inguinal Hernia
  • Migraine
  • Nausea and Vomiting
  • Obesity
  • Osteoporosis
  • Peptic Ulcer
  • Prescription Refill
  • Urethritis
  • Urinary Tract Infection (UTI)

ACA Marketplace (Obamacare/HealthCare.gov) plan networks

Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Katharine F. Marshall as in-network for the following 2026 plans.

Health plans

Kaiser Permanente

Network data as of Sep 29, 2025, as reported by the insurer.

Show all 9 plans from Kaiser Permanente
Kaiser Permanente plans
Plan Plan type Network tier New patients
KP OR Bronze 6000 EPO · Expanded Bronze Tier One Accepting new patients
KP OR Bronze HSA 7100 EPO · Expanded Bronze Tier One Accepting new patients
KP OR Gold 0 EPO · Gold Tier One Accepting new patients
KP OR Gold 1750 EPO · Gold Tier One Accepting new patients
KP OR Silver 3000 EPO · Silver Tier One Accepting new patients
KP OR Silver 4000 EPO · Silver Tier One Accepting new patients
KP Oregon Standard Bronze Plan EPO · Expanded Bronze Tier One Accepting new patients
KP Oregon Standard Gold Plan EPO · Gold Tier One Accepting new patients
KP Oregon Standard Silver Plan EPO · Silver Tier One Accepting new patients

Moda Health Plan, Inc.

Network data as of Sep 12, 2026, as reported by the insurer.

Show all 13 plans from Moda Health Plan, Inc.
Moda Health Plan, Inc. plans
Plan Plan type Network tier New patients
Moda Health Affinity Bronze 8000 EPO · Expanded Bronze Preferred Accepting new patients
Moda Health Affinity Bronze 9000 EPO · Expanded Bronze Preferred Accepting new patients
Moda Health Affinity Bronze HDHP 7500 EPO · Expanded Bronze Preferred Accepting new patients
Moda Health Affinity Gold 1000 EPO · Gold Preferred Accepting new patients
Moda Health Affinity Gold 1500 EPO · Gold Preferred Accepting new patients
Moda Health Affinity Gold 250 EPO · Gold Preferred Accepting new patients
Moda Health Affinity Silver 3000 EPO · Silver Preferred Accepting new patients
Moda Health Affinity Silver 3400 EPO · Silver Preferred Accepting new patients
Moda Health Affinity Silver 4500 EPO · Silver Preferred Accepting new patients
Moda Health Affinity Silver 6000 EPO · Silver Preferred Accepting new patients
Moda Health Oregon Standard Bronze Affinity EPO · Expanded Bronze Preferred Accepting new patients
Moda Health Oregon Standard Gold Affinity EPO · Gold Preferred Accepting new patients
Moda Health Oregon Standard Silver Affinity EPO · Silver Preferred Accepting new patients

Dental plans

Kaiser Permanente

Network data as of Sep 29, 2025, as reported by the insurer.

Kaiser Permanente plans
Plan Plan type Network tier New patients
KP OR Family Dental - $100 Ded EPO · Low Tier One Accepting new patients
KP OR Family Dental - $1000 EPO · Low Tier One Accepting new patients
KP OR Family Dental - $1000/$50 Ded EPO · High Tier One Accepting new patients

This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Katharine F. Marshall is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.

Insurance information looks wrong? Let us know

Medicare Enrollment

Dr. Katharine F. Marshall is enrolled to bill Medicare as a Practitioner - Internal Medicine (also registered under: Practitioner - Addiction Medicine) .

Bills through: Kaiser Foundation Health Plan Of The Northwest

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.

Additional Specialities

  • Resident

Looking for more Internists?

Out of the 128 internists in this region, here are 10 randomly selected ones for you to explore.

Dr. Seth David Izenberg
  • Gender: Male
  • Address: Suite 580 501 North Graham Street Portland, 97227, OR
Dr. Vern R. Williams
  • Gender: Male
  • Address: 15 North Morris Street Portland, 97227, OR
Dr. Douglas Michael Lackowski
  • Gender: Male
  • Address: 3600 North Interstate Avenue Portland, 97227, OR
Dr. Herbert Roth Salomon
  • Gender: Male
  • Address: 3500 North Interstate Avenue Portland, 97227, OR
Dr. Joshua David Thompson
  • Gender: Male
  • Address: 2801 North Gantenbein Avenue Portland, 97227, OR
Dr. Ralph Elliott Weinstein
  • Gender: Male
  • Address: 265 North Broadway Portland, 97227, OR
Dr. Emily Kathleen Coombes
  • Gender: Female
  • Address: Suite 230 2800 North Vancouver Avenue Portland, 97227, OR
Dr. Pulla Raghuram Reddy
  • Gender: Male
  • Address: 1950 Northwest Myhre Road Floor 3 Silverdale, 98383, WA
Dr. Keith Howard Bachman
  • Gender: Male
  • Address: 3550 North Interstate Avenue Portland, 97227, OR
Dr. Tara Lyn Eagle
  • Gender: Female
  • Address: Suite 230 2800 North Vancouver Avenue Portland, 97227, OR

Questions & Answers

Does Dr. Katharine F. Marshall accept insurance?

Dr. Katharine F. Marshall is listed in-network for 25 ACA Marketplace (Obamacare/HealthCare.gov) plans from Kaiser Permanente, Moda Health Plan, Inc.. See the Marketplace plans section for details.

Where can you meet with Dr. Katharine F. Marshall?

Dr. Katharine F. Marshall's office is located at 3500 North Interstate Avenue in Portland, OR 97227.

What conditions does Dr. Katharine F. Marshall treat?

Dr. Katharine F. Marshall provides treatment for Atherosclerosis, Fever, Hyperlipidemia, Nausea and Vomiting, Osteoporosis, Prescription Refill. For the full list see this list.