Walter Marshall, LMFT
NPI 1821707464 · Marriage & Family Therapist · Saint Louis, MO
Walter Marshall, LMFT is a Marriage & Family Therapist provider in Saint Louis, MO (NPI 1821707464).
Provider details
- NPI number
- 1821707464
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LMFT
- Sex
- Male
- Sole proprietor
- Yes
- License
- 20222036668 (MO)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
3 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
- 2022-11-22
- Last updated
- 2022-11-22
- Certified
- 2022-11-22
Frequently asked questions
- What is Walter Marshall's NPI number?
- Walter Marshall's National Provider Identifier (NPI) is 1821707464, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Walter Marshall's specialty?
- Walter Marshall is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Walter Marshall located?
- Walter Marshall's practice location on file with NPPES is 1535 82nd Blvd, Saint Louis, MO 63132-2633.
- What is Walter Marshall's phone number?
- The practice phone number listed in the NPPES registry for Walter Marshall is (808) 840-3179.
- Is Walter Marshall's NPI active?
- Yes — Walter Marshall's NPI (1821707464) is active in the NPPES registry as of the last update on 2022-11-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.