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Dr. James Richard Knister, MD
NPI1164459061
- Medicare services, 2020
- 151
- Part D claims, 2019
- 12
- Publications
- 2
- Industry payments
- $377
- Insurance carriers
- 5
- Practice address
- 2182 East St, Concord, CA 94520
- Practice phone
- Call (925) 685-4224
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Jiva Health, Inc
Concord, California
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Dr. James Richard Knister is a radiation oncologist in Concord, California
Dr. Knister practices at Jiva Health, Inc in Concord, California.
Dr. Knister's NPI, 1164459061, was assigned on June 27, 2006. Dr. Knister graduated from UC Irvine School of Medicine in 1980. Dr. Knister holds California license G62093.
NPI and contact details
- NPI
- 1164459061NPI Registry (opens in a new tab)
- NPI enumeration date
- June 27, 2006
- NPI status
- Active
- Practice phone
- (925) 685-4224
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Medical school graduation
- 1980
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. James Richard Knister practices at Jiva Health, Inc in Concord, California
Dr. Knister's primary practice is Jiva Health, Inc, at 2182 East St, Concord, CA 94520 in Contra Costa County. The practice phone is (925) 685-4224.
- Jiva Health, Inc2182 East St, Concord, CA 94520 · Contra Costa CountyPhone(925) 685-4224
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. James Richard Knister is affiliated with 1 site of care
Dr. Knister's primary practice is Jiva Health, Inc in Concord, California.
Jiva Health, IncPrimary
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dmand AI tracks the EHR system at Dr. James Richard Knister's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Knister practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Jiva Health, Inc | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. James Richard Knister is one of 685 radiation oncologists in California
Radiation oncology is Dr. Knister's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Knister is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Knister's licenses on file in 3 states: California, Oregon and Hawaii.
Specialties and state licenses
- Radiation oncology, CaliforniaPrimary
- Oregon license
- Hawaii license
Radiation oncologists near Dr. Knister
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
685radiation oncologists in California
3radiation oncologists in Concord
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. James Richard Knister billed Medicare for 151 services in 2020
CMS data shows 151 Medicare services from Dr. Knister across 3 procedure codes in 2020. Medicare paid $10,456 for them. Every service was in an office.
Medicare services, 2020151
Paid by Medicare$10,456
Procedure codes3
Dr. Knister's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Imaging
- 2019: 6512020: 12181%
- Office and hospital visits
- 2019: 1132020: 3073%
Dr. Knister compared with the California median for radiation oncologists, 2020
- Dr. Knister
- California median
- Medicare services
- 151vs 1,44490% below
- Part D claims
- 12vs 3263% below
Medians across 633 radiation oncologists in California with Dmand AI profiles that report each measure.
Dr. Knister's most billed Medicare procedure codes, 2020
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Knister and other radiation oncologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. James Richard Knister wrote 12 Medicare Part D claims in 2019
In 2019, Dr. Knister wrote 12 Medicare Part D claims. They cover 1 drug, with $434 in total drug cost. In 2016, CMS named 25 claims across 2 drugs.
Part D claims, 201912
Drugs named by CMS1
Total drug cost$434
Dr. Knister's most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2016 to 2019
- 2016
- 2019
- Claims for drugs CMS names
- 2016: 252019: 1252%
Drugs named by CMS: 1 in 2019, 2 in 2016.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. James Richard Knister has 2 publications on record
Dmand AI links 2 papers to Dr. Knister.
Papers2
Recent publications by Dr. Knister
Carcinoma, Squamous CellHead and Neck NeoplasmsRadiotherapy, Computer-Assisted
See who Dr. Knister researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Knister 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. James Richard Knister received $377 in industry payments from 2016 to 2018
CMS Open Payments shows 6 general payments to Dr. Knister from 5 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 84% of the total. Augmenix, Inc. paid the most, $139.
General payments to Dr. Knister by program year, 2016 to 2018
General payments to Dr. Knister by kind, 2016 to 2018
$377in total
- Food and beverage$31784%
- Education$6016%
Companies that paid Dr. Knister the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. James Richard Knister graduated from UC Irvine School of Medicine
Dr. Knister graduated from UC Irvine School of Medicine in 1980.
- Medical school
- Board certified in radiation oncology
Source: Dmand AI Professional Profile Data
Dr. James Richard Knister accepts plans from 5 insurance carriers
Dr. Knister is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. 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
Plan types Dr. Knister accepts, by number of carriers
- Medicare5
- PPO5
- EPO1
- HMO1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. James Richard Knister'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice 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 |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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. James Richard Knister
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. James Richard Knister's NPI number?
Dr. James Richard Knister's NPI number is 1164459061. It was assigned on June 27, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. James Richard Knister?
Dr. James Richard Knister is a radiation oncologist in Concord, California. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. James Richard Knister practice?
Dr. Knister practices at 2182 East St, Concord, CA 94520. Dr. Knister's primary practice is Jiva Health, Inc in Concord, California.
What is Dr. James Richard Knister's office phone number?
The practice phone on file for Dr. Knister is (925) 685-4224.
What is Dr. James Richard Knister's medical license number?
Dr. Knister holds California license G62093, one of the licenses on file in 3 states.
Which states has Dr. James Richard Knister been licensed in?
Dmand AI has state licenses on file for Dr. Knister in California (1988 to 2027), Oregon (since 1982) and Hawaii (2006 to 2022).
Does Dr. James Richard Knister accept Medicare?
Yes. CMS data shows Dr. Knister billed Medicare for 151 services in 2020.
Is Dr. James Richard Knister board certified?
Yes. Dr. Knister is board certified in radiation oncology by the American Board of Radiology.
What services does Dr. James Richard Knister bill to Medicare?
In 2020, Dr. Knister's most billed Medicare services were radiation oncology (77014), radiation oncology (77427) and office visit, established patient (99213).
Where did Dr. James Richard Knister go to medical school?
Dr. Knister graduated from UC Irvine School of Medicine in 1980.
Show 5 more questionsShow fewer questions
What drugs does Dr. James Richard Knister prescribe most?
In 2019 Medicare Part D data, Dr. Knister's most prescribed drugs by claims were Hydrocodone-Acetaminophen.
Has Dr. James Richard Knister received payments from drug or device companies?
CMS Open Payments shows $377 in general payments to Dr. Knister from 5 companies from 2016 to 2018. The largest total came from Augmenix, Inc.
How long has Dr. James Richard Knister been practicing?
Dr. Knister graduated from medical school in 1980, 46 years ago.
Does Dr. James Richard Knister do research?
Dmand AI links 2 publications to Dr. Knister.
What insurance does Dr. James Richard Knister accept?
Dr. Knister is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Massachusetts and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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