Louis Walthall, LCSWR, CASAC
NPI 1558502880 · Clinical Social Worker · Ronkonkoma, NY
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Walthall, LCSWR, CASAC is a Clinical Social Worker provider in Ronkonkoma, NY (NPI 1558502880).
Provider details
- NPI number
- 1558502880
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSWR, CASAC
- Sex
- Male
- Sole proprietor
- No
- License
- 73 051661 (NY)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
Behavioral Health & Social Service Providers
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
17 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
- 2009-03-17
- Last updated
- 2018-02-22
Frequently asked questions
- What is Louis Walthall's NPI number?
- Louis Walthall's National Provider Identifier (NPI) is 1558502880, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Walthall's specialty?
- Louis Walthall is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Louis Walthall located?
- Louis Walthall's practice location on file with NPPES is 3281 Veterans Memorial Hwy Ste E14, Ronkonkoma, NY 11779-7675.
- What is Louis Walthall's phone number?
- The practice phone number listed in the NPPES registry for Louis Walthall is (631) 471-3122.
- Does Louis Walthall accept Medicare?
- Louis Walthall is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Walthall's NPI active?
- Yes — Louis Walthall's NPI (1558502880) is active in the NPPES registry as of the last update on 2018-02-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.