Dr. Charles E. Fiske, MD

  • Walnut Creek, CA
  • Radiation oncologist
NPI1013900331PAC ID8426140898
Medicare services, 2024
42,887
Medicare patients, 2024
2,085
Publications
2
MIPS score, 2024
91
Industry payments
$1,136
Practice address
114 La Casa Via, Walnut Creek, CA 94598
Practice phone
Call (925) 937-6100
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

NorCal Imaging - Walnut Creek

Mammography / Breast Imaging Center · Walnut Creek, California

See all 21 affiliations

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Dr. Charles E. Fiske is a radiation oncologist in Walnut Creek, California

Dr. Fiske practices at NorCal Imaging - Walnut Creek in Walnut Creek, California.

Dr. Fiske's NPI, 1013900331, was assigned on August 23, 2005. Dr. Fiske graduated from David Geffen School of Medicine at UCLA in 1976. Dr. Fiske holds California license G35057.

NPI and contact details
Medicare PAC ID
8426140898
NPI enumeration date
August 23, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(925) 937-6100
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
76
Medical school graduation
1976

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

Dr. Charles E. Fiske practices at NorCal Imaging - Walnut Creek in Walnut Creek, California

Dr. Fiske's primary practice is NorCal Imaging - Walnut Creek, at 114 La Casa Via, Walnut Creek, CA 94598. The practice phone is (925) 937-6100.

  • NorCal Imaging - Walnut Creek
    114 La Casa Via, Walnut Creek, CA 94598Phone(925) 937-6100

Source: Dmand AI Affiliation Data

Dr. Charles E. Fiske is affiliated with 9 sites of care and 12 medical groups

Dr. Fiske's primary practice is NorCal Imaging - Walnut Creek in Walnut Creek, California. The medical group on file is NorCal Imaging. Dmand AI also links Dr. Fiske to 11 more medical groups and 8 group practices and clinics, each named with a free account. Dr. Fiske's employer is on file too: a breast imaging center.

See all 21 affiliations for Dr. Fiske

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Charles E. Fiske's practice

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

EHR by site
SiteEHR vendor and product
NorCal Imaging - Walnut CreekAvailable with a free account
+8 more sites and 11 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Charles E. Fiske is one of 685 radiation oncologists in California

Radiation oncology is Dr. Fiske's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Fiske is board certified in diagnostic radiology by the American Board of Radiology. Dr. Fiske is licensed in California.

Specialties and state licenses

  • Radiation oncology, CaliforniaPrimaryLicense G35057 · 1977 to 2026 · taxonomy 2085R0001X

Radiation oncologists near Dr. Fiske

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

685radiation oncologists in California
9radiation oncologists in Walnut Creek

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

Dr. Charles E. Fiske billed Medicare for 42,887 services in 2024

CMS data shows 42,887 Medicare services from Dr. Fiske across 60 procedure codes in 2024, for 2,085 Medicare patients. Medicare paid $528,507 for them. Every service was in an office.

Medicare services, 202442,887
Medicare patients2,085
Paid by Medicare$528,507
Procedure codes60

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

  • 2023
  • 2024
Other services
2023: 47,2782024: 40,16615%
Imaging
2023: 3,3352024: 2,69619%
Tests and treatments
2023: 362024: 2531%

Dr. Fiske compared with the California median for radiation oncologists, 2024

  • Dr. Fiske
  • California median
Medicare services
42,887vs 1,44429.7 times
Medicare patients
2,085vs 16412.7 times

Medians across 633 radiation oncologists in California with Dmand AI profiles that report each measure.

Dr. Fiske'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. Fiske

Need commercial claims for Dr. Fiske?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fiske and other radiation oncologists in California.

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

Dr. Charles E. Fiske treated 2,085 Medicare patients in 2024, average age 73

CMS counts 2,085 Medicare patients who saw Dr. Fiske in 2024. The largest group is 65 to 74, with 1,032 patients. 75% of them have high cholesterol, and 70% have high blood pressure. 35% are also on Medicaid. Their average risk score is 1.02, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Fiske's median patient age at 61, with 58% women.

Medicare patients, 20242,085
Average age73
Average risk score1.02
Also on Medicaid35%

Dr. Fiske's Medicare patients by age, 2024

Dr. Fiske's Medicare patients by sex, 2024

  • Women1,28762%
  • Men79838%

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

  1. High cholesterol75%
  2. High blood pressure70%
  3. Arthritis53%
  4. Diabetes27%
  5. Osteoporosis22%
  6. Anxiety19%
  7. Chronic kidney disease19%
  8. Ischemic heart disease19%

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

Dr. Fiske's patients across all payers

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

Patient panel by age, all payers

Median age 61

Patient panel by sex, all payers

  • Women58%
  • Men39%

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

Dr. Charles E. Fiske scored 91 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Fiske for performance year 2024, reported as part of a group. Dr. Fiske accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Fiske's MIPS scores, performance year 2024

  • 91of 100Final score
  • 75of 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. Charles E. Fiske has 2 publications on record

Dmand AI links 2 papers to Dr. Fiske. The most frequent topics are Contrast Media, Image-Guided Biopsy and Image Interpretation, Computer-Assisted. Dr. Fiske has published most often in Abdom Radiol (NY). Dr. Fiske's most frequent co-author is Eric Jiah-Ming Jordan, MD.

Papers2

Topics Dr. Fiske writes about most

  • Contrast Media
  • Image-Guided Biopsy
  • Image Interpretation, Computer-Assisted
  • Magnetic Resonance Imaging
  • Multimodal Imaging
  • Prostatic Neoplasms
  • Ultrasonography

Dr. Fiske's most frequent co-authors

Recent publications by Dr. Fiske

See all 2 publications and co-authors

See who Dr. Fiske researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fiske works with, so you can find a warm path to the right radiation oncologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Charles E. Fiske received $1,136 in industry payments from 2017 to 2022

CMS Open Payments shows 5 general payments to Dr. Fiske from 3 drug and device companies from 2017 to 2022. Consulting fees make up the largest share, 92% of the total. Nevro Corp. paid the most, $1,050.

General payments to Dr. Fiske by program year, 2017 to 2022

General payments to Dr. Fiske by kind, 2017 to 2022

$1.1Kin total
  • Consulting fees$1,05092%
  • Food and beverage$868%

Companies that paid Dr. Fiske the most, 2017 to 2022

Share is of all general payments to this clinician.

See all payments to Dr. Fiske

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

Dr. Charles E. Fiske has 1 award and honors on record

Dmand AI lists 1 award for Dr. Fiske, most recently CMS Stage 1 EHR in 2013.

Awards and honors for Dr. Fiske

  1. 2013
    • CMS Stage 1 EHR

Source: Dmand AI Professional Profile Data

Dr. Charles E. Fiske graduated from David Geffen School of Medicine at UCLA

Dr. Fiske graduated from David Geffen School of Medicine at UCLA in 1976.

  1. Medical schoolDavid Geffen School of Medicine at UCLA
  2. Board certified in diagnostic radiologyAmerican Board of Radiology

Source: Dmand AI Professional Profile Data

Dr. Charles E. Fiske accepts plans from 1 insurance carrier

Dr. Fiske is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

  • CMS Medicare

Source: Dmand AI Insurance Network Data

Sources for Dr. Charles E. Fiske'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 phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy 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)
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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network 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. Charles E. Fiske

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. Charles E. Fiske's NPI number?

Dr. Charles E. Fiske's NPI number is 1013900331. It was assigned on August 23, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Charles E. Fiske?

Dr. Charles E. Fiske is a radiation oncologist in Walnut Creek, California. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).

Where does Dr. Charles E. Fiske practice?

Dr. Fiske practices at 114 La Casa Via, Walnut Creek, CA 94598. Dr. Fiske's primary practice is NorCal Imaging - Walnut Creek in Walnut Creek, California. Dmand AI also links Dr. Fiske to 11 medical groups and 8 group practices and clinics.

What is Dr. Charles E. Fiske's office phone number?

The practice phone on file for Dr. Fiske is (925) 937-6100.

What is Dr. Charles E. Fiske's medical license number?

Dr. Fiske holds California license G35057.

What medical group is Dr. Charles E. Fiske part of?

Dr. Fiske is linked to NorCal Imaging. Dmand AI links Dr. Fiske to 11 more medical groups.

Does Dr. Charles E. Fiske accept Medicare?

Yes. CMS data shows Dr. Fiske billed Medicare for 42,887 services in 2024, and Dr. Fiske accepts Medicare assignment.

What is Dr. Charles E. Fiske's MIPS score?

Dr. Fiske's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.

How many Medicare patients does Dr. Charles E. Fiske see?

CMS counts 2,085 Medicare patients who saw Dr. Fiske in 2024, with an average age of 73.

Is Dr. Charles E. Fiske board certified?

Yes. Dr. Fiske is board certified in diagnostic radiology by the American Board of Radiology.

Show 7 more questionsShow fewer questions

What services does Dr. Charles E. Fiske bill to Medicare?

In 2024, Dr. Fiske's most billed Medicare services were medical supplies or transport (A9575), medicare temporary code (Q9967) and radiation oncology (77067).

Where did Dr. Charles E. Fiske go to medical school?

Dr. Fiske graduated from David Geffen School of Medicine at UCLA in 1976.

Has Dr. Charles E. Fiske received payments from drug or device companies?

CMS Open Payments shows $1,136 in general payments to Dr. Fiske from 3 companies from 2017 to 2022. The largest total came from Nevro Corp.

How long has Dr. Charles E. Fiske been practicing?

Dr. Fiske graduated from medical school in 1976, 50 years ago.

Does Dr. Charles E. Fiske do research?

Dmand AI links 2 publications to Dr. Fiske.

Who does Dr. Charles E. Fiske publish with?

Dr. Fiske's most frequent co-authors are Eric Jiah-Ming Jordan, MD (2 shared papers).

What insurance does Dr. Charles E. Fiske accept?

Dr. Fiske is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.

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