Theodore G Gabig, M.D.

Hematology & Oncology

Internal Medicine

Theodore G Gabig is a Hematology & Oncology specialist based in Stony Brook, NY with over 53 years of clinical experience. Offers virtual telehealth visits.

(631) 444-2540Stony Brook, NY
Telehealth Available
NPI Active per CMS — Q2 2026

With over 53 years in internal medicine, Theodore G Gabig, M.D. is a long-established hematology & oncology specialist in Stony Brook. He graduated from Loyola University of Chicago, Stritch School of Medicine in 1973 and has 53+ years of clinical experience. Among his Medicare patients, common conditions include hypertension, high cholesterol, and arthritis (per CMS data).

1 of 440 Internal Medicine providers in NYSee all Internal Medicine in Stony Brook53+ years experienceNPI since 2006

Older · 4721dNPPES updated 2013-06-19 · verify NPI on CMS · Verify license at New York State Board for Medicine

Contact & Location

Practice Location

University Hospital. L5, Stony Brook, NY 11794

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
Higher than avg (+5%)75%

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

US avg: 70.2%

↑ More patients than average (+5%) — a focus area for this doctor

High Cholesterol
Higher than avg (+5%)75%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↑ More patients than average (+5%) — a focus area for this doctor

Arthritis
Higher than avg (+2%)51%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↑ More patients than average (+2%) — a focus area for this doctor

Ischemic Heart Disease
Higher than avg (+17%)49%

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

US avg: 31.7%

↑ More patients than average (+17%) — a focus area for this doctor

Diabetes
Higher than avg (+11%)45%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↑ More patients than average (+11%) — a focus area for this doctor

Chronic Kidney Disease
Higher than avg (+13%)43%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

US avg: 29.6%

↑ More patients than average (+13%) — a focus area for this doctor

Heart Failure
Higher than avg (+17%)39%

The heart cannot pump blood efficiently enough to meet the body's needs

US avg: 22.5%

↑ More patients than average (+17%) — a focus area for this doctor

Anxiety Disorders
34%

Excessive worry or fear that interferes with daily life

US avg: 34.1%
GeneralBehavioralNational avg

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

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Background & Specialty

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

Career Journey
  1. Graduated medical school · 1973

    Loyola University of Chicago, Stritch School of Medicine

  2. 53 years in practice

    Senior practitioner

An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered.

Taxonomy: 207RH0003X

Education & Training

Loyola University of Chicago, Stritch School of Medicine (Class of 1973)

Practice Footprint

Mailing address

P.O. Box 1559, Stony Brook, NY 11790

Differs from practice location

Virtual Hematology & Oncology Care With Theodore G Gabig

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

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

Frequently Asked Questions

Common questions about Theodore G Gabig

NPI records show Dr. Gabig as active with telehealth listed in Stony Brook, NY. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (631) 444-2540.

Verified across 4 federal data sources

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

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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.

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