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

Mr. Charles J Allen, OTR/L, CHT

Individual provider Occupational Therapist · NPI 1548216237

Mr. Charles J Allen, OTR/L, CHT is an Occupational Therapist in Private Practice in Hauppauge, New York. Qualified in 2001, 25 years ago. Practices with C.j. Allen OT Upper Extremity and Hand Therapy, PLLC, a 4-clinician group, works from 2 locations and accepts Medicare assignment.

Years since qualifying
25
In the registry since
2006
Specialties on file
2
What do these letters mean?
OTR/L — Occupational Therapist, Registered and Licensed
An occupational therapist who is both nationally registered and state licensed.
CHT — Certified Hand Therapist
An occupational or physical therapist with advanced certification in hand and upper-limb rehabilitation.

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Practice location Address checks out

2108 Joshuas Path
Hauppauge, NY 11788-4764
Phone: (631) 761-6996
Fax: (631) 761-6997
Show map & directions

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

Additional practice locations (1)

  • 290 E Main St Ste 400, Smithtown, NY 11787-2916 — (631) 675-5777

Specialties & licences

Occupational Therapist (primary) Taxonomy 225X00000X
Customized Equipment (DME) Taxonomy 332BC3200X

Record details

NPI number1548216237
Entity typeIndividual (Type 1)
GenderMale
Credentials OTR/L , CHT
Sole proprietorYes
NPI enumeratedMay 25, 2006
Last updated in NPPESMarch 1, 2024
Certification dateJanuary 25, 2023

Medicare enrollment

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

Medicare specialtyOCCUPATIONAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 2001 (25 years in practice)
Group practice C.J. Allen Ot Upper Extremity And Hand Therapy, Pllc — 4 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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