Thomas Henry Gallagher

Internal Medicine

Thomas Henry Gallagher is an Internal Medicine specialist based in Seattle, WA with over 36 years of clinical experience. Offers virtual telehealth visits.

(206) 598-8750Seattle, WA
Telehealth Available
NPI Active per CMS — Q2 2026

Thomas Henry Gallagher has been part of the Seattle medical community since 2006 in group practice. He graduated from Harvard Medical School in 1990 and has 36+ years of clinical experience. Among his Medicare patients, common conditions include hypertension and high cholesterol (per CMS data).

1 of 581 Internal Medicine providers in WASee all Internal Medicine in Seattle36+ years experienceNPI since 2006

Older · 5218dNPPES updated 2012-02-10 · verify NPI on CMS · Verify license at Washington Medical Commission

Contact & Location

Practice Location

Uwmc-Roosevelt 4245 Roosevelt Way Ne, Seattle, WA 98105-6920

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.

Hypertension
68%

High blood pressure — a leading risk factor for heart disease and stroke

High Cholesterol
54%

Elevated cholesterol or triglycerides that increase heart disease risk

Arthritis
29%

Joint inflammation causing pain, swelling, and stiffness

Diabetes
21%

A condition where the body cannot properly regulate blood sugar levels

Ischemic Heart Disease
21%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

Atrial Fibrillation
21%

An irregular, often rapid heartbeat that increases the risk of stroke

Depression
21%

A mood disorder causing persistent sadness and loss of interest in activities

Mood Disorders
21%

Conditions affecting emotional state, including depression and bipolar disorder

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

Patient Reviews

No patient reviews yet. If you've seen Thomas Henry Gallagher, your feedback helps other patients.

Review PolicyAll feedback is moderated before publishing. We verify reviewer identity where possible and enforce a one-review-per-provider policy. Full guidelines →

Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 1990

    Harvard Medical School

  2. 36 years in practice

    Senior practitioner

Internal MedicineAllopathic & Osteopathic Physicians

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

Taxonomy: 207R00000X

Education & Training

Harvard Medical School (Class of 1990)

Practice Footprint

Mailing address

Po Box 50095, Seattle, WA 98145-5095

Differs from practice location

Virtual Internal Medicine Care With Thomas Henry Gallagher

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Thomas Henry Gallagher for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Seattle required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Thomas Henry Gallagher

NPI records show Dr. Gallagher as active with telehealth listed in Seattle, WA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (206) 598-8750.

Verified across 3 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Physician Comparator. See Data Methodology.

Is this your profile?

Verify credentials, update practice details, and manage telehealth.

Claim Profile

Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

Related Providers

Internal Medicine in WA

See all