Gillian Martenson, LCSW
NPI 1487300216 · Clinical Social Worker · Philadelphia, PA
Gillian Martenson, LCSW is a Clinical Social Worker provider in Philadelphia, PA (NPI 1487300216).
Provider details
- NPI number
- 1487300216
- Entity type
- Individual
- Primary specialty
- Clinical Social WorkerBehavioral Health & Social Service Providers
- Credential
- LCSW
- Sex
- Female
- Sole proprietor
- Yes
- License
- CW017471 (PA)
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
4 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
- 2022-03-02
- Last updated
- 2022-03-02
- Certified
- 2022-03-02
Frequently asked questions
- What is Gillian Martenson's NPI number?
- Gillian Martenson's National Provider Identifier (NPI) is 1487300216, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gillian Martenson's specialty?
- Gillian Martenson is listed in the NPPES registry with a primary specialty of Clinical Social Worker (Behavioral Health & Social Service Providers).
- Where is Gillian Martenson located?
- Gillian Martenson's practice location on file with NPPES is 2619 E Norris St, Philadelphia, PA 19125-3522.
- What is Gillian Martenson's phone number?
- The practice phone number listed in the NPPES registry for Gillian Martenson is (917) 690-2311.
- Is Gillian Martenson's NPI active?
- Yes — Gillian Martenson's NPI (1487300216) is active in the NPPES registry as of the last update on 2022-03-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.