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

Mrs. Diane Lyn Kerr, PT

Individual provider Physical Therapist · NPI 1235232117

Mrs. Diane Lyn Kerr, PT is registered under Physical Therapist in Private Practice in Marriottsville, Maryland. Qualified in 1986, 40 years ago. Practices with Centers for Advanced Orthopaedics LLC, a 598-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Maryland.

Years since qualifying
40
Licensed in
MD
In the registry since
2006
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

2470 Longstone Ln Ste K
Marriottsville, MD 21104-1515
Phone: (410) 442-2470
Fax: (410) 442-2476
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 10030 Baltimore National Pike Ste D180, Ellicott City, MD 21042-3686 — (410) 644-1880

Specialties & licences

Physical Therapist (primary) Taxonomy 225100000X · Licence 16049 (MD)

Record details

NPI number1235232117
Entity typeIndividual (Type 1)
GenderFemale
Credentials PT
Sole proprietorNo
NPI enumeratedSeptember 6, 2006
Last updated in NPPESApril 20, 2021
Certification dateApril 20, 2021

Medicare enrollment

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

Medicare specialtyPHYSICAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 1986 (40 years in practice)
Group practice Centers For Advanced Orthopaedics Llc — 598 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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 patients80
Services billed 4,608 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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 Centers for Advanced Orthopaedics LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 598 clinicians in the practice; 12 are shown here.

Other providers in Marriottsville