Stephen Giddings, MD
NPI 1154408912 · Specialist · Saint Louis, MO
Enrolled with Medicare as Order and Referring Only - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephen Giddings, MD is a Specialist provider in Saint Louis, MO (NPI 1154408912).
Provider details
- NPI number
- 1154408912
- Entity type
- Individual
- Primary specialty
- SpecialistOther Service Providers
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- R7920 (MO)
Specialties & taxonomies
Other Service Providers
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
- 2006-11-01
- Last updated
- 2007-07-08
Frequently asked questions
- What is Stephen Giddings's NPI number?
- Stephen Giddings's National Provider Identifier (NPI) is 1154408912, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephen Giddings's specialty?
- Stephen Giddings is listed in the NPPES registry with a primary specialty of Specialist (Other Service Providers).
- Where is Stephen Giddings located?
- Stephen Giddings's practice location on file with NPPES is 915 N Grand Blvd, Saint Louis, MO 63106-1621.
- What is Stephen Giddings's phone number?
- The practice phone number listed in the NPPES registry for Stephen Giddings is (314) 454-1212.
- Does Stephen Giddings accept Medicare?
- Stephen Giddings is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephen Giddings's NPI active?
- Yes — Stephen Giddings's NPI (1154408912) 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.