Thomas J. Spillane, MD
Medical Oncology Physician · San Luis Obispo, CA
Thomas J. Spillane, MD is a medical oncology physician with a practice address in San Luis Obispo, California, and NPI 1477558435, issued on Jun 16, 2005. Check the license (California G79734, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomas J. Spillane
- Credential
- MD
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- G79734 CA
Self-reported in NPPES; status is on the state search - Practice location
- 715 Tank Farm Road, San Luis Obispo, CA 93401
- Phone
- (805) 543-5577
- Enumerated
- Jun 16, 2005
- Record last updated
- Jun 30, 2026
- Fax
- (805) 595-3231
- Medicaid ID
- 00G797340 CA
- Medicare enrollment
- Enrolled (PECOS I20110303000376); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 1988
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Also registered at 715 Tank Farm Road
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Susan Moon Labriola, NPOncology Clinical Nurse Specialist1861609414
Verify Thomas J. Spillane in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G79734Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% more Medicare Part D claims than the average medical oncology physician in 2024
1,021 Medicare Part D claims for 256 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. 46 claims were for opioids.
Most prescribed
- Letrozole142 claims
- Tamoxifen Citrate62 claims
- Acyclovir51 claims
- Prednisone44 claims
- Gabapentin32 claims
- Levothyroxine Sodium29 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 96.5 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $7,697.18
287 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- David B. HammerTempleton, CA
- Pacific Central Coast Health CentersSan Luis Obispo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas J. Spillane among 447 medical oncology physician records in California
Thomas J. Spillane, MD is one of 447 medical oncology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 94% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated1988 · median 2004 among the 312 with a school on file
- Record last updated2026 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in California
There are 447 medical oncology physician records in California.
All 447 in California → Every provider in San Luis Obispo → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Brent Cham, MDSanta Maria, CA 934541265061600
- Robert Havard, MDVisalia, CA 932771225002694
- Kevin Yoon, M.D.Lancaster, CA 935341972092674
- Daniel Greenwald, M.D.Santa Barbara, CA 931051235240987
- Mukul Gupta, M.D.Santa Barbara, CA 931051295843738
- Juliet Penn, M.D.Santa Barbara, CA 931051215175070
- Li Ge, MDFresno, CA 937101194709188
- Oranus Mohammadi, MDFresno, CA 937101881119501
Common questions
What is Thomas J. Spillane, MD's NPI number?
Thomas J. Spillane, MD's National Provider Identifier (NPI) is 1477558435, issued on Jun 16, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Thomas J. Spillane, MD located?
The NPPES record lists a practice address at 715 Tank Farm Road, San Luis Obispo, CA, 93401. Phone: (805) 543-5577. Providers update this record themselves, so call before visiting.
How can I verify Thomas J. Spillane, MD's license?
NPPES lists California license number G79734, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Thomas J. Spillane, MD prescribe under Medicare Part D?
In 2024, Thomas J. Spillane, MD had 1,021 Medicare Part D claims for 256 beneficiaries; the average among medical oncology physician prescribers was 703. Part D covers Medicare prescriptions only.
What is Thomas J. Spillane, MD's MIPS final score?
The 2023 MIPS final score is 96.5 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.