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

Mr. William Mark Hamilton, OTR/L

Individual provider Specialist · NPI 1053334953

Mr. William Mark Hamilton, OTR/L is an Occupational Therapist in Private Practice in Fayetteville, Arkansas. Qualified in 1989, 37 years ago. Practices with Ozark Orthopaedics, PA, a 57-clinician group and accepts Medicare assignment. Licensed in Arkansas and Oregon.

Years since qualifying
37
Licensed in
AR, OR
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.

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Practice location Address checks out

3317 N Wimberly Dr Fl 2
Fayetteville, AR 72703-4056
Phone: (479) 587-3117
Fax: (479) 587-3185
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Occupational Therapist (primary) Taxonomy 225X00000X · Licence OTR1534 (AR)
Specialist Taxonomy 174400000X · Licence 1039824 (OR)

Record details

NPI number1053334953
Entity typeIndividual (Type 1)
GenderMale
Credentials OTR/L
Sole proprietorNo
NPI enumeratedJuly 25, 2006
Last updated in NPPESNovember 12, 2023
Certification dateNovember 12, 2023

Medicare enrollment

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

Medicare specialtyOCCUPATIONAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 1989 (37 years in practice)
Group practice Ozark Orthopaedics, P.A. — 57 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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