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

Mr. Mark Douglas Schermerhorn, PT, ATC

Individual provider Physical Therapist · NPI 1114048832

Mr. Mark Douglas Schermerhorn, PT, ATC is a Physical Therapist in Private Practice in Elkhart, Indiana. Qualified in 1988, 38 years ago. Practices with Senior Outpatient Services, a 10-clinician group and accepts Medicare assignment. Licensed in Indiana.

Years since qualifying
38
Licensed in
IN
In the registry since
2007
Specialties on file
2
What do these letters mean?
PT — Physical Therapist
A licensed therapist who treats movement, pain and injury.
ATC — Certified Athletic Trainer
Prevents and treats sport and activity injuries.

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Practice location Address checks out

1220 E Jackson Blvd
Elkhart, IN 46516-4419
Phone: (574) 333-9747
Fax: (574) 367-2369
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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 05002434A (IN)
Athletic Trainer Taxonomy 2255A2300X · Licence 36000908A (IN)

Record details

NPI number1114048832
Entity typeIndividual (Type 1)
GenderMale
Credentials PT , ATC
Sole proprietorNo
NPI enumeratedApril 2, 2007
Last updated in NPPESMarch 19, 2026
Certification dateMarch 19, 2026

Medicare enrollment

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

Medicare specialtyPHYSICAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 1988 (38 years in practice)
Group practice Senior Outpatient Services — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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