Leonard Thomas Hackett, M.D.
With over 49 years in internal medicine, Leonard Thomas Hackett, M.D. is a long-established hematology & oncology specialist in Fresno. With 49+ years of experience, he has been practicing in the Fresno area. Among his Medicare patients, common conditions include hypertension, high cholesterol, and arthritis (per CMS data).
Older · 209dNPPES updated 2025-10-09 · verify on CMS
Contact & Location
Practice Location
7130 N Millbrook Ave, Fresno, CA 93720-3347
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.
High blood pressure — a leading risk factor for heart disease and stroke
Elevated cholesterol or triglycerides that increase heart disease risk
Joint inflammation causing pain, swelling, and stiffness
Diseases involving abnormal cell growth with potential to spread to other body parts
Gradual loss of kidney function over time, often linked to diabetes or hypertension
A condition where the body cannot properly regulate blood sugar levels
Reduced blood flow to the heart muscle, commonly known as coronary artery disease
Weakened bones that are more prone to fractures, common in older adults
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 Leonard Thomas Hackett, 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.
Board certified · Oct 8, 2025
CMS-verified certification date
49 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
Mailing address
Po Box 25100, Fresno, CA 93729-5100
Differs from practice location
Virtual Hematology & Oncology Care With Leonard Thomas Hackett
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Leonard Thomas Hackett for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to Fresno required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.
Frequently Asked Questions
Common questions about Leonard Thomas Hackett
NPI records show Dr. Hackett as active with telehealth listed in Fresno, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (559) 326-1222.
Sourced from CMS NPPES · OIG LEIE · CMS Physician Comparator. See Data Methodology.
Is this your profile?
Verify credentials, update practice details, and manage telehealth.
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.
Contact Leonard Thomas Hackett
Practice Location
7130 N Millbrook Ave, Fresno, CA 93720-3347
Mailing Address
Po Box 25100, Fresno, CA 93729-5100
This is a provider directory. Contact the office directly to schedule appointments.
Related Providers