Barry Alan Firstenberg, DO

Hematology & Oncology

Internal Medicine

(817) 251-9080Grapevine, TX
Telehealth Available
NPI Active per CMS — Q2 2026

Barry Alan Firstenberg, DO has practiced internal medicine for 48+ years, working in group practice. He graduated from At Still University of Health Sciences, College of Osteo Med, Kirksville in 1978 and has 48+ years of clinical experience. Among his Medicare patients, common conditions include hypertension, high cholesterol, and cancer (per CMS data).

1 of 415 Internal Medicine providers in TXSee all Internal Medicine in Grapevine48+ years experienceNPI since 2005

Older · 1632dNPPES updated 2021-11-16 · verify on CMS

Contact & Location

Practice Location

1631 Lancaster Dr Ste 150, Grapevine, TX 76051-3586

Fax: (817) 251-9082
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 Cancer.

Hypertension
75%

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

High Cholesterol
73%

Elevated cholesterol or triglycerides that increase heart disease risk

Cancer
53%

Diseases involving abnormal cell growth with potential to spread to other body parts

Arthritis
51%

Joint inflammation causing pain, swelling, and stiffness

Ischemic Heart Disease
35%

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

Chronic Kidney Disease
30%

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

Diabetes
29%

A condition where the body cannot properly regulate blood sugar levels

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.

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Background & Specialty

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

Career Journey
  1. Graduated medical school · 1978

    At Still University of Health Sciences, College of Osteo Med, Kirksville

  2. Board certified · Nov 15, 2021

    CMS-verified certification date

  3. 48 years in practice

    Senior practitioner

Internal MedicineHematology & Oncology in GrapevineAllopathic & Osteopathic Physicians

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

At Still University of Health Sciences, College of Osteo Med, Kirksville (Class of 1978)

Practice Footprint

Mailing address

Po Box 911242, Dallas, TX 75391-1242

Differs from practice location

Virtual Hematology & Oncology Care With Barry Alan Firstenberg

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

Schedule a virtual visit with Barry Alan Firstenberg for blood pressure monitoring, cholesterol management, follow-up consultations — no travel to Grapevine required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about Barry Alan Firstenberg

NPI records show Dr. Firstenberg as active with telehealth listed in Grapevine, TX. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (817) 251-9080.

Verified across 3 federal data sources

Sourced from CMS NPPES · OIG LEIE · 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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