James Marks, MD
NPI 1033237003 · Radiation Oncology Physician · Saint Louis, MO
James Marks, MD is a Radiation Oncology Physician provider in Saint Louis, MO (NPI 1033237003).
Provider details
- NPI number
- 1033237003
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 30258 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
- 2007-03-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is James Marks's NPI number?
- James Marks's National Provider Identifier (NPI) is 1033237003, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is James Marks's specialty?
- James Marks is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is James Marks located?
- James Marks's practice location on file with NPPES is 1715 Deer Tracks Trl, Saint Louis, MO 63131-1839.
- What is James Marks's phone number?
- The practice phone number listed in the NPPES registry for James Marks is (314) 821-5600.
- Is James Marks's NPI active?
- Yes — James Marks's NPI (1033237003) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.