Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mariella Petrowski, PT

Individual provider Physical Therapist · NPI 1295914901

Mariella Petrowski, PT is registered under Physical Therapist in Private Practice in Tewksbury, Massachusetts. Qualified in 1990, 36 years ago. Practices with Healthy at Home Physical Therapy, LLC, an 8-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
36
Licensed in
MA
In the registry since
2007
What do these letters mean?
PT — Physical Therapist
A licensed therapist who treats movement, pain and injury.

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Practice location Address checks out

33 Henry J Dr
Tewksbury, MA 01876-3719 Not confirmed with CMS for 18 years — call before visiting
Phone: (617) 909-3721
Fax: (978) 412-9991
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Therapist (primary) Taxonomy 225100000X · Licence 8295 (MA)

Record details

NPI number1295914901
Entity typeIndividual (Type 1)
GenderFemale
Credentials PT
Sole proprietorYes
NPI enumeratedOctober 30, 2007
Last updated in NPPESOctober 30, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPHYSICAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 1990 (36 years in practice)
Group practice Healthy At Home Physical Therapy, Llc — 8 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients19
Services billed 712 a service is one billed item, such as a visit, a test or a procedure
Average patient age82

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Healthy at Home Physical Therapy, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Tewksbury