Dr. Thomas J. Spillane, MD

  • San Luis Obispo, CA
  • Medical oncologist
NPI1477558435PAC ID8123046265
Medicare services, 2024
3,615
Medicare patients, 2024
860
Part D claims, 2024
1,021
Clinical trials
10
MIPS score, 2024
100
Practice address
715 Tank Farm Rd, San Luis Obispo, CA 93401
Practice phone
Call (805) 543-5577
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Slo Oncology & Hematology Health Center

San Luis Obispo, California

See all 13 affiliations

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Dr. Thomas J. Spillane is a medical oncologist in San Luis Obispo, California

Dr. Spillane practices at Slo Oncology & Hematology Health Center in San Luis Obispo, California.

Dr. Spillane's NPI, 1477558435, was assigned on June 16, 2005. Dr. Spillane graduated from University of California, Davis School of Medicine in 1988. Dr. Spillane holds California license G79734.

NPI and contact details
Medicare PAC ID
8123046265
NPI enumeration date
June 16, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(805) 543-5577
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
64
Medical school graduation
1988

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Thomas J. Spillane practices at Slo Oncology & Hematology Health Center in San Luis Obispo, California

Dr. Spillane's primary practice is Slo Oncology & Hematology Health Center, at 715 Tank Farm Rd, San Luis Obispo, CA 93401 in San Luis Obispo County. The practice phone is (805) 543-5577.

  • Slo Oncology & Hematology Health Center
    715 Tank Farm Rd, San Luis Obispo, CA 93401 · San Luis Obispo CountyPhone(805) 543-5577

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Thomas J. Spillane is affiliated with 10 sites of care and 3 medical groups

Dr. Spillane's primary practice is Slo Oncology & Hematology Health Center in San Luis Obispo, California. Dr. Spillane is also affiliated with Dignity Health - French Hospital Medical Center. The medical group on file is Pacific Central Coast Health Centers Medical Group. Dmand AI also links Dr. Spillane to 3 more hospitals, 2 group practices and clinics, 2 home health agencies, 2 medical groups and 1 therapy and rehab clinic, each named with a free account.

See all 13 affiliations for Dr. Spillane

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Thomas J. Spillane's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Spillane practices, 9 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Slo Oncology & Hematology Health CenterAvailable with a free account
+9 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Thomas J. Spillane is one of 415 medical oncologists in California

Medical oncology is Dr. Spillane's primary specialty in the NPI Registry, under taxonomy code 207RX0202X. Dr. Spillane is licensed in California.

Specialties and state licenses

  • Medical oncology, CaliforniaPrimaryLicense G79734 · taxonomy 207RX0202X

Medical oncologists near Dr. Spillane

Counts of medical oncologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Thomas J. Spillane billed Medicare for 3,615 services in 2024

CMS data shows 3,615 Medicare services from Dr. Spillane across 9 procedure codes in 2024, for 860 Medicare patients. Medicare paid $354,955 for them. Every service was in an office.

Medicare services, 20243,615
Medicare patients860
Paid by Medicare$354,955
Procedure codes9

Dr. Spillane's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 2,6712024: 3,61535%

Dr. Spillane compared with the California median for medical oncologists, 2024

  • Dr. Spillane
  • California median
Medicare services
3,615vs 4967.3 times
Medicare patients
860vs 1545.6 times
Part D claims
636vs 1444.4 times

Medians across 358 medical oncologists in California with Dmand AI profiles that report each measure.

Dr. Spillane's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Spillane

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Thomas J. Spillane treated 860 Medicare patients in 2024, average age 76

CMS counts 860 Medicare patients who saw Dr. Spillane in 2024. The largest group is 75 to 84, with 350 patients. 70% of them have high blood pressure, and 65% have high cholesterol. 12% are also on Medicaid. Their average risk score is 1.69, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Spillane's median patient age at 74, with 61% women.

Medicare patients, 2024860
Average age76
Average risk score1.69
Also on Medicaid12%

Dr. Spillane's Medicare patients by age, 2024

Dr. Spillane's Medicare patients by sex, 2024

  • Women53562%
  • Men32538%

Chronic conditions among Dr. Spillane's Medicare patients, 2024

  1. High blood pressure70%
  2. High cholesterol65%
  3. Cancer51%
  4. Arthritis45%
  5. Chronic kidney disease27%
  6. Ischemic heart disease22%
  7. Mood disorders22%
  8. Diabetes21%

Share of Medicare patients with each condition. A patient can have several.

Dr. Spillane's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women61%
  • Men38%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Thomas J. Spillane wrote 1,021 Medicare Part D claims in 2024

In 2024, Dr. Spillane wrote 1,021 Medicare Part D claims for 256 patients. 82% of them were for generic drugs. CMS names the drug for 636 of them, across 22 drugs with 11 or more claims each, at $497,995 in total drug cost. In 2023, CMS named 803 claims across 32 drugs.

Part D claims, 20241,021
Drugs named by CMS22
Total drug cost$497,995
Part D patients256

Dr. Spillane's Part D claims by kind of drug, 2024

  • Generic835 claims82%
  • Brand-name and other186 claims18%

Dr. Spillane's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Spillane's Part D claims, 2024

  • Opioids5%46 of 1,021 claims
  • Antibiotics4%45 of 1,021 claims
  • Antipsychotics, patients 65 and over2%20 of 1,021 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 8032024: 63621%

Drugs named by CMS: 22 in 2024, 32 in 2023.

See all prescribing by Dr. Spillane

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Thomas J. Spillane scored 100 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Spillane for performance year 2024, reported through an alternative payment model (APM). Dr. Spillane accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Spillane as offering telehealth.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Spillane's MIPS scores, performance year 2024

  • 100of 100Final score
  • 86.3of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026

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Dr. Thomas J. Spillane has worked on 10 clinical trials

Dmand AI links Dr. Spillane to 10 clinical trials, 7 of them phase 3 studies. 8 are still active or recruiting. Conditions studied include Carcinoma, Non-Small-Cell Lung, Carcinoma, Bronchogenic and Leukemia, Myelogenous, Chronic, BCR-ABL Positive. National Cancer Institute (NCI) sponsors the most, 7.

Clinical trials with Dr. Spillane by phase

  1. NonePhase 1: no trials
  2. 1Phase 2: 1 trial
  3. 7Phase 3: 7 trials
  4. NonePhase 4: no trials

Conditions in Dr. Spillane's trials

  • Carcinoma, Non-Small-Cell Lung
  • Carcinoma, Bronchogenic
  • Leukemia, Myelogenous, Chronic, BCR-ABL Positive
  • Lung Neoplasms
  • Oropharyngeal Neoplasms

Investigators on the most trials with Dr. Spillane

Recent clinical trials with Dr. Spillane

See all 10 clinical trials and co-investigators

Sources: ClinicalTrials.gov (National Library of Medicine); and Dmand AI Research Linkage

Dr. Thomas J. Spillane received $67,274 in industry payments from 2016 to 2025

CMS Open Payments shows 2,058 general payments to Dr. Spillane from 92 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 58% of the total. Bayer HealthCare Pharmaceuticals Inc. paid the most, $13,446.

General payments to Dr. Spillane by program year, 2016 to 2025

General payments to Dr. Spillane by kind, 2016 to 2025

$67.3Kin total
  • Food and beverage$38,82958%
  • Consulting fees$25,39638%
  • Device or supply loans$1,3482%
  • Travel and lodging$1,0912%
  • Education$6101%

Companies that paid Dr. Spillane the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Spillane

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Thomas J. Spillane graduated from University of California, Davis School of Medicine

Dr. Spillane graduated from University of California, Davis School of Medicine in 1988.

  1. Medical schoolUniversity of California, Davis School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Thomas J. Spillane's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)
Clinical trials and co-investigatorsClinicalTrials.gov (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Thomas J. Spillane

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Thomas J. Spillane's NPI number?

Dr. Thomas J. Spillane's NPI number is 1477558435. It was assigned on June 16, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Thomas J. Spillane?

Dr. Thomas J. Spillane is a medical oncologist in San Luis Obispo, California. The primary specialty in the NPI Registry is Medical Oncology Physician (taxonomy code 207RX0202X).

Where does Dr. Thomas J. Spillane practice?

Dr. Spillane practices at 715 Tank Farm Rd, San Luis Obispo, CA 93401. Dr. Spillane's primary practice is Slo Oncology & Hematology Health Center in San Luis Obispo, California. Dmand AI also links Dr. Spillane to 3 hospitals, 2 group practices and clinics, 2 home health agencies, 2 medical groups and 1 therapy and rehab clinic.

What is Dr. Thomas J. Spillane's office phone number?

The practice phone on file for Dr. Spillane is (805) 543-5577.

What is Dr. Thomas J. Spillane's medical license number?

Dr. Spillane holds California license G79734.

Which hospitals is Dr. Thomas J. Spillane affiliated with?

Dr. Spillane is affiliated with Dignity Health - French Hospital Medical Center. Dmand AI links Dr. Spillane to 3 more hospitals.

What medical group is Dr. Thomas J. Spillane part of?

Dr. Spillane is linked to Pacific Central Coast Health Centers Medical Group. Dmand AI links Dr. Spillane to 2 more medical groups.

Does Dr. Thomas J. Spillane accept Medicare?

Yes. CMS data shows Dr. Spillane billed Medicare for 3,615 services in 2024, and Dr. Spillane accepts Medicare assignment.

Does Dr. Thomas J. Spillane offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Spillane as offering telehealth services.

What is Dr. Thomas J. Spillane's MIPS score?

Dr. Spillane's MIPS final score for performance year 2024 is 100 out of 100, reported through an alternative payment model (APM).

Show 7 more questionsShow fewer questions

How many Medicare patients does Dr. Thomas J. Spillane see?

CMS counts 860 Medicare patients who saw Dr. Spillane in 2024, with an average age of 76.

What services does Dr. Thomas J. Spillane bill to Medicare?

In 2024, Dr. Spillane's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, established patient (99215).

Where did Dr. Thomas J. Spillane go to medical school?

Dr. Spillane graduated from University of California, Davis School of Medicine in 1988.

What drugs does Dr. Thomas J. Spillane prescribe most?

In 2024 Medicare Part D data, Dr. Spillane's most prescribed drugs by claims were Letrozole, Tamoxifen Citrate and Acyclovir.

Has Dr. Thomas J. Spillane received payments from drug or device companies?

CMS Open Payments shows $67,274 in general payments to Dr. Spillane from 92 companies from 2016 to 2025. The largest total came from Bayer HealthCare Pharmaceuticals Inc.

How long has Dr. Thomas J. Spillane been practicing?

Dr. Spillane graduated from medical school in 1988, 38 years ago.

Does Dr. Thomas J. Spillane do research?

Dr. Spillane has worked on 10 clinical trials.

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