Lisa Lassen, LCSW
NPI 1003389099 · Clinical Social Worker · San Antonio, TX
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Lisa Lassen, LCSW is a Clinical Social Worker provider in San Antonio, TX (NPI 1003389099).
Provider details
- NPI number
- 1003389099
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 62512 (TX)
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
7 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
- 2019-01-02
- Last updated
- 2019-01-02
Frequently asked questions
- What is Lisa Lassen's NPI number?
- Lisa Lassen's National Provider Identifier (NPI) is 1003389099, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Lisa Lassen's specialty?
- Lisa Lassen is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Lisa Lassen located?
- Lisa Lassen's practice location on file with NPPES is 4242 Medical Dr Ste 6300, San Antonio, TX 78229-5372.
- What is Lisa Lassen's phone number?
- The practice phone number listed in the NPPES registry for Lisa Lassen is (210) 614-8400.
- Does Lisa Lassen accept Medicare?
- Lisa Lassen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Lisa Lassen's NPI active?
- Yes — Lisa Lassen's NPI (1003389099) is active in the NPPES registry as of the last update on 2019-01-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.