James Knister, M.D.
NPI 1164459061 · Radiation Oncology Physician · Napa, CA
James Knister, M.D. is a Radiation Oncology Physician provider in Napa, CA (NPI 1164459061).
Provider details
- NPI number
- 1164459061
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G62093 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-27
- Last updated
- 2016-11-17
Frequently asked questions
- What is James Knister's NPI number?
- James Knister's National Provider Identifier (NPI) is 1164459061, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Knister's specialty?
- James Knister is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is James Knister located?
- James Knister's practice location on file with NPPES is 1000 Trancas St, Napa, CA 94558-2906.
- What is James Knister's phone number?
- The practice phone number listed in the NPPES registry for James Knister is (707) 252-4633.
- Is James Knister's NPI active?
- Yes — James Knister's NPI (1164459061) is active in the NPPES registry as of the last update on 2016-11-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.