Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.

Dr. Sean Christopher Maxwell

Individual provider Physical Therapist · NPI 1912415654

Dr. Sean Christopher Maxwell is registered under Physical Therapist in Private Practice in Wilmington, Delaware. Qualified in 2017, 9 years ago. Practices with Ati Holdings, LLC, a 439-clinician group and accepts Medicare assignment. Licensed in Delaware.

Years since qualifying
9
Licensed in
DE
In the registry since
2018

Practice location Address checks out

4345 Kirkwood Hwy Ste 201
Wilmington, DE 19808-5131
Phone: (302) 635-9009
Fax: (302) 449-2047
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physical Therapist (primary) Taxonomy 225100000X · Licence J1-0003850 (DE)

Record details

NPI number1912415654
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorNo
NPI enumeratedJanuary 16, 2018
Last updated in NPPESAugust 28, 2025
Certification dateAugust 28, 2025

Medicare enrollment

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

Medicare specialtyPHYSICAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Ati Holdings, Llc — 439 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 patients47
Services billed 1,923 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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 Ati Holdings, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 439 clinicians in the practice; 12 are shown here.

Other providers in Wilmington