Marissa Bortenstein, LCSW
NPI 1215437504 · Clinical Social Worker · Austin, TX
Enrolled with Medicare as Practitioner - Clinical Social Worker · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marissa Bortenstein, LCSW is a Clinical Social Worker provider in Austin, TX (NPI 1215437504).
Provider details
- NPI number
- 1215437504
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- 59315 (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
8 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
- 2018-02-13
- Last updated
- 2020-08-27
- Certified
- 2020-08-27
Frequently asked questions
- What is Marissa Bortenstein's NPI number?
- Marissa Bortenstein's National Provider Identifier (NPI) is 1215437504, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marissa Bortenstein's specialty?
- Marissa Bortenstein is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Marissa Bortenstein located?
- Marissa Bortenstein's practice location on file with NPPES is 7701 N Lamar Blvd Ste 313, Austin, TX 78752-1080.
- What is Marissa Bortenstein's phone number?
- The practice phone number listed in the NPPES registry for Marissa Bortenstein is (512) 265-5220.
- Does Marissa Bortenstein accept Medicare?
- Marissa Bortenstein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marissa Bortenstein's NPI active?
- Yes — Marissa Bortenstein's NPI (1215437504) is active in the NPPES registry as of the last update on 2020-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.