Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. Leonard Thomas Hackett, MD

Individual provider Hematology & Oncology Physician · NPI 1669466868

Dr. Leonard Thomas Hackett, MD is a Hematology in Fresno, California. Qualified in 1977, 49 years ago. Practices with California Cancer Associates for Research and Excellence Inc, a 65-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
49
Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

7130 N Millbrook Ave
Fresno, CA 93720-3347
Phone: (559) 326-1222
Fax: (559) 326-1225
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1125 E Spruce Ave Ste 103, Fresno, CA 93720-3387 — (559) 878-4510

Specialties & licences

Hematology & Oncology Physician (primary) Taxonomy 207RH0003X · Licence G52529 (CA)

Record details

NPI number1669466868
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedSeptember 2, 2005
Last updated in NPPESOctober 9, 2025
Certification dateOctober 9, 2025
Mailing addressPo Box 25100, Fresno, CA 93729-5100

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyHEMATOLOGY
Also practisesMEDICAL ONCOLOGY
Medical schoolOTHER
Graduated 1977 (49 years in practice)
Group practice California Cancer Associates For Research And Excellence Inc — 65 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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