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

Dr. Thomas J Spillane, MD

Individual provider Medical Oncology Physician · NPI 1477558435

Dr. Thomas J Spillane, MD is a Medical Oncology in San Luis Obispo, California. Graduated from University of California, Davis School of Medicine in 1988, 38 years ago. Practices with David B. Hammer, a 116-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
38
Trained at
University of California, Davis School of Medicine
Licensed in
CA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

715 Tank Farm Rd Ste C
San Luis Obispo, CA 93401-7068
Phone: (805) 543-5577
Fax: (805) 595-3231
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1325 E Church St Ste 202, Santa Maria, CA 93454-5915 — (805) 346-3456

Specialties & licences

Medical Oncology Physician (primary) Taxonomy 207RX0202X · Licence G79734 (CA)

Record details

NPI number1477558435
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 16, 2005
Last updated in NPPESJune 30, 2026
Certification dateJune 30, 2026

Medicare enrollment

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

Medicare specialtyMEDICAL ONCOLOGY
Also practisesHEMATOLOGY/ONCOLOGY
Medical schoolUNIVERSITY OF CALIFORNIA, DAVIS SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice David B. Hammer — 116 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations2 on file with Medicare