Jay Marshall, MD
NPI 1356364632 · Gastroenterology Physician · Chesterfield, MO
Jay Marshall, MD is a Gastroenterology Physician provider in Chesterfield, MO (NPI 1356364632).
Provider details
- NPI number
- 1356364632
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 34594 (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
- 2006-07-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jay Marshall's NPI number?
- Jay Marshall's National Provider Identifier (NPI) is 1356364632, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jay Marshall's specialty?
- Jay Marshall is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Jay Marshall located?
- Jay Marshall's practice location on file with NPPES is 224 S Woods Mill Rd, Chesterfield, MO 63017.
- What is Jay Marshall's phone number?
- The practice phone number listed in the NPPES registry for Jay Marshall is (314) 878-6260.
- Is Jay Marshall's NPI active?
- Yes — Jay Marshall's NPI (1356364632) 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.