Gretchen Zalis, DPT
NPI 1780400739 · Physical Therapist · Somerville, MA
Enrolled with Medicare as Practitioner - Physical Therapist in Private Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretchen Zalis, DPT is a Physical Therapist provider in Somerville, MA (NPI 1780400739).
Provider details
- NPI number
- 1780400739
- Entity type
- Individual
- Primary specialty
- Physical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- DPT
- Sex
- Female
- Sole proprietor
- No
- License
- PTL28055 (MA)
Specialties & taxonomies
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
1 yr 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
- 2024-11-25
- Last updated
- 2024-11-25
- Certified
- 2024-11-25
Frequently asked questions
- What is Gretchen Zalis's NPI number?
- Gretchen Zalis's National Provider Identifier (NPI) is 1780400739, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretchen Zalis's specialty?
- Gretchen Zalis is listed in the NPPES registry with a primary specialty of Physical Therapist (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Gretchen Zalis located?
- Gretchen Zalis's practice location on file with NPPES is 260 Beacon St, Somerville, MA 02143-3787.
- What is Gretchen Zalis's phone number?
- The practice phone number listed in the NPPES registry for Gretchen Zalis is (857) 995-6050.
- Does Gretchen Zalis accept Medicare?
- Gretchen Zalis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretchen Zalis's NPI active?
- Yes — Gretchen Zalis's NPI (1780400739) is active in the NPPES registry as of the last update on 2024-11-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.