Dr. Kenneth T. Shimizu, MD
- Medicare services, 2024
- 2,113
- Medicare patients, 2024
- 367
- Part D claims, 2024
- 70
- Publications
- 2
- Hospital affiliations
- 3
- Practice address
- 10666 North Torrey Pines Road, La Jolla, CA 92037
- Practice phone
- Call (858) 554-3600
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Shimizu's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Kenneth T. Shimizu is a radiation oncologist in La Jolla, California
Dr. Shimizu practices at Scripps Green Hospital in La Jolla, California, part of Scripps Health.
Dr. Shimizu's NPI, 1326032129, was assigned on September 7, 2005. Dr. Shimizu graduated from David Geffen School of Medicine at UCLA in 1988. Dr. Shimizu's California license number on file is G67647.
- NPI
- 1326032129NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2860444346
- NPI enumeration date
- September 7, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (858) 554-3600
- 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 Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Kenneth T. Shimizu practices at Scripps Green Hospital in La Jolla, California
Dr. Shimizu's primary practice is Scripps Green Hospital, at 10666 North Torrey Pines Road, La Jolla, CA 92037 in San Diego County. The practice phone is (858) 554-3600.
- Scripps Green Hospital10666 North Torrey Pines Road, La Jolla, CA 92037 · San Diego CountyPhone(858) 554-3600
Source: Dmand AI Affiliation Data
Dr. Kenneth T. Shimizu is affiliated with 6 sites of care and 3 medical groups
Dr. Shimizu's primary practice is Scripps Green Hospital in La Jolla, California, part of Scripps Health. Dr. Shimizu is also affiliated with Scripps Memorial Hospital La Jolla. The medical group on file is Scripps Clinic Medical Group. Dmand AI also links Dr. Shimizu to 1 more hospital, 2 medical groups, 1 breast imaging center, 1 group practice or clinic and 1 urgent care center, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Kenneth T. Shimizu's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Shimizu practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Green Hospital | Available with a free account |
| +5 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Scripps Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Kenneth T. Shimizu is one of 685 radiation oncologists in California
Radiation oncology is Dr. Shimizu's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Shimizu is board certified in radiation oncology by the American Board of Radiology. Dr. Shimizu has a license on file in California.
Specialties and state licenses
- Radiation oncology, CaliforniaPrimary
Clinical focus
Dmand AI lists brain cancer radiation, brain tumor radiation, breast cancer radiation, colorectal cancer radiation, head & neck cancer radiation, lung cancer radiation and prostate cancer radiation among the conditions Dr. Shimizu treats.
Radiation oncologists near Dr. Shimizu
Counts of radiation 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. Kenneth T. Shimizu billed Medicare for 2,113 services in 2024
CMS data shows 2,113 Medicare services from Dr. Shimizu across 24 procedure codes in 2024, for 367 Medicare patients. Medicare paid $164,675 for them. Every service was in an office.
Dr. Shimizu's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,8012024: 1,49517%
- Office and hospital visits
- 2023: 2472024: 31929%
- Other services
- 2023: 5372024: 29944%
Dr. Shimizu compared with the California median for radiation oncologists, 2024
- Dr. Shimizu
- California median
- Medicare services
- 2,113vs 1,44446% above
- Medicare patients
- 367vs 1642.2 times
- Part D claims
- 18vs 3244% below
Medians across 633 radiation oncologists in California with Dmand AI profiles that report each measure.
Dr. Shimizu'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.
Need commercial claims for Dr. Shimizu?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Shimizu and other radiation oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Kenneth T. Shimizu treated 367 Medicare patients in 2024, average age 75
CMS counts 367 Medicare patients who saw Dr. Shimizu in 2024. The largest group is 65 to 74, with 177 patients. 75% of them have cancer, and 72% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.26, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Shimizu's median patient age at 66, with 81% women.
Dr. Shimizu's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Shimizu's Medicare patients by sex, 2024
- Women25870%
- Men10930%
Chronic conditions among Dr. Shimizu's Medicare patients, 2024
- Cancer75%
- High cholesterol72%
- High blood pressure65%
- Arthritis43%
- Ischemic heart disease24%
- Osteoporosis24%
- Anxiety23%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Shimizu's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 66
Patient panel by sex, all payers
- Women81%
- Men19%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Kenneth T. Shimizu wrote 70 Medicare Part D claims in 2024
In 2024, Dr. Shimizu wrote 70 Medicare Part D claims for 33 patients. 83% of them were for generic drugs. CMS names the drug for 18 of them, across 1 drug with 11 or more claims each, at $94 in total drug cost. In 2023, CMS named 12 claims across 1 drug.
Dr. Shimizu's Part D claims by kind of drug, 2024
- Generic58 claims83%
- Brand-name12 claims17%
Dr. Shimizu'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. Shimizu's Part D claims, 2024
- Opioids16%11 of 70 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: 122024: 1850%
Drugs named by CMS: 1 in 2024, 1 in 2023.
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. Kenneth T. Shimizu offers telehealth to Medicare patients
Dr. Shimizu accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Shimizu as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Kenneth T. Shimizu has 2 publications on record
Dmand AI links 2 papers to Dr. Shimizu, published from 2013 to 2021. Dr. Shimizu's most frequent co-authors are Sharona Ben-Haim, MD, Christopher M. Duma, MD and David W. Hodgens, MD.
Dr. Shimizu's most frequent co-authors
- Sharona Ben-Haim, MD1 shared paper
- Christopher M. Duma, MD1 shared paper
- David W. Hodgens, MD1 shared paper
Recent publications by Dr. Shimizu
Leukemia
See who Dr. Shimizu researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Shimizu works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Kenneth T. Shimizu received $733 in industry payments from 2016 to 2024
CMS Open Payments shows 40 general payments to Dr. Shimizu from 19 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $138.
General payments to Dr. Shimizu by program year, 2016 to 2024
Companies that paid Dr. Shimizu the most, 2016 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Kenneth T. Shimizu graduated from David Geffen School of Medicine at UCLA
Dr. Shimizu graduated from David Geffen School of Medicine at UCLA in 1988.
- Medical school
- Board certified in radiation oncology
Source: Dmand AI Professional Profile Data
Dr. Kenneth T. Shimizu accepts plans from 6 insurance carriers
Dr. Shimizu is in network with 6 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Massachusetts
- Blue Cross Blue Shield of Michigan
- HCSC
- Regence Health Plans
- CMS Medicare
Plan types Dr. Shimizu accepts, by number of carriers
- Medicare6
- PPO5
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Kenneth T. Shimizu's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Kenneth T. Shimizu
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. Kenneth T. Shimizu's NPI number?
Dr. Kenneth T. Shimizu's NPI number is 1326032129. It was assigned on September 7, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Kenneth T. Shimizu?
Dr. Kenneth T. Shimizu is a radiation oncologist in La Jolla, California. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Kenneth T. Shimizu practice?
Dr. Shimizu practices at 10666 North Torrey Pines Road, La Jolla, CA 92037. Dr. Shimizu's primary practice is Scripps Green Hospital in La Jolla, California, part of Scripps Health. Dmand AI also links Dr. Shimizu to 1 hospital, 2 medical groups, 1 breast imaging center, 1 group practice or clinic and 1 urgent care center.
What is Dr. Kenneth T. Shimizu's office phone number?
The practice phone on file for Dr. Shimizu is (858) 554-3600.
What is Dr. Kenneth T. Shimizu's medical license number?
Dr. Shimizu's California license number on file is G67647.
Which hospitals is Dr. Kenneth T. Shimizu affiliated with?
Dr. Shimizu practices at Scripps Green Hospital in La Jolla, California. Dr. Shimizu is also affiliated with Scripps Memorial Hospital La Jolla. Dmand AI links Dr. Shimizu to 1 more hospital.
What medical group is Dr. Kenneth T. Shimizu part of?
Dr. Shimizu is linked to Scripps Clinic Medical Group. Dmand AI links Dr. Shimizu to 2 more medical groups.
Does Dr. Kenneth T. Shimizu accept Medicare?
Yes. CMS data shows Dr. Shimizu billed Medicare for 2,113 services in 2024, and Dr. Shimizu accepts Medicare assignment.
Does Dr. Kenneth T. Shimizu offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Shimizu as offering telehealth services.
How many Medicare patients does Dr. Kenneth T. Shimizu see?
CMS counts 367 Medicare patients who saw Dr. Shimizu in 2024, with an average age of 75.
Show 9 more questionsShow fewer questions
Is Dr. Kenneth T. Shimizu board certified?
Yes. Dr. Shimizu is board certified in radiation oncology by the American Board of Radiology.
What services does Dr. Kenneth T. Shimizu bill to Medicare?
In 2024, Dr. Shimizu's most billed Medicare services were radiation oncology (77334), radiation oncology (77427) and radiation oncology (77300).
Where did Dr. Kenneth T. Shimizu go to medical school?
Dr. Shimizu graduated from David Geffen School of Medicine at UCLA in 1988.
What drugs does Dr. Kenneth T. Shimizu prescribe most?
In 2024 Medicare Part D data, Dr. Shimizu's most prescribed drugs by claims were Hydrocortisone.
Has Dr. Kenneth T. Shimizu received payments from drug or device companies?
CMS Open Payments shows $733 in general payments to Dr. Shimizu from 19 companies from 2016 to 2024. The largest total came from AstraZeneca Pharmaceuticals LP.
How long has Dr. Kenneth T. Shimizu been practicing?
Dr. Shimizu graduated from medical school in 1988, 38 years ago.
Does Dr. Kenneth T. Shimizu do research?
Dmand AI links 2 publications to Dr. Shimizu, published from 2013 to 2021.
Who does Dr. Kenneth T. Shimizu publish with?
Dr. Shimizu's most frequent co-authors are Sharona Ben-Haim, MD (1 shared paper), Christopher M. Duma, MD (1 shared paper) and David W. Hodgens, MD (1 shared paper).
What insurance does Dr. Kenneth T. Shimizu accept?
Dr. Shimizu is in network with 6 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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