Bellevue Diagnosticians Inc.
NPI 1902929441 · Gastroenterology Physician · Saint Louis, MO
Bellevue Diagnosticians Inc. is a Gastroenterology Physician organization in Saint Louis, MO (NPI 1902929441).
Provider details
- NPI number
- 1902929441
- Entity type
- Organization
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Anna Niesen, President(314) 781-8405
- License
- R8939 (MO)
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
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
- 2007-04-09
- Last updated
- 2025-09-11
Frequently asked questions
- What is Bellevue Diagnosticians Inc.'s NPI number?
- Bellevue Diagnosticians Inc.'s National Provider Identifier (NPI) is 1902929441, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Bellevue Diagnosticians Inc.?
- Bellevue Diagnosticians Inc. is classified in the NPPES registry as Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Bellevue Diagnosticians Inc. located?
- Bellevue Diagnosticians Inc.'s practice location on file with NPPES is 6400 Clayton Rd, Saint Louis, MO 63117-1850.
- What is Bellevue Diagnosticians Inc.'s phone number?
- The practice phone number listed in the NPPES registry for Bellevue Diagnosticians Inc. is (314) 781-8405.
- Who is the authorized official for Bellevue Diagnosticians Inc.?
- The authorized official listed on Bellevue Diagnosticians Inc.'s NPPES record is Anna Niesen, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Bellevue Diagnosticians Inc.'s NPI active?
- Yes — Bellevue Diagnosticians Inc.'s NPI (1902929441) is active in the NPPES registry as of the last update on 2025-09-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.