Mark Defazio, PTA
NPI 1619503125 · Physical Therapy Assistant · Boston, MA
Mark Defazio, PTA is a Physical Therapy Assistant provider in Boston, MA (NPI 1619503125).
Provider details
- NPI number
- 1619503125
- Entity type
- Individual
- Primary specialty
- Physical Therapy AssistantRespiratory, Developmental, Rehabilitative and Restorative Service Providers
- Credential
- PTA
- Sex
- Male
- Sole proprietor
- No
- License
- 9532 (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
6 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
- 2020-03-16
- Last updated
- 2020-03-16
- Certified
- 2020-03-16
Frequently asked questions
- What is Mark Defazio's NPI number?
- Mark Defazio's National Provider Identifier (NPI) is 1619503125, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Defazio's specialty?
- Mark Defazio is listed in the NPPES registry with a primary specialty of Physical Therapy Assistant (Respiratory, Developmental, Rehabilitative and Restorative Service Providers).
- Where is Mark Defazio located?
- Mark Defazio's practice location on file with NPPES is 185 Harrison Ave, Boston, MA 02111-1804.
- What is Mark Defazio's phone number?
- The practice phone number listed in the NPPES registry for Mark Defazio is (617) 636-5632.
- Is Mark Defazio's NPI active?
- Yes — Mark Defazio's NPI (1619503125) is active in the NPPES registry as of the last update on 2020-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.