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

Mrs. Diane Willette Walker, OTR/L

Individual provider Environmental Modification Occupational Therapist · NPI 1124647730

Mrs. Diane Willette Walker, OTR/L is an Environmental Modification Occupational Therapist in Billerica, Massachusetts. Practices as a sole proprietor. Licensed in Massachusetts and New Hampshire.

Licensed in
MA, NH
In the registry since
2020
Specialties on file
15
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

179 Baldwin Rd
Billerica, MA 01821-3013
Phone: (978) 376-6990
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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 3137 (MA)
Environmental Modification Occupational Therapist Taxonomy 225XE0001X · Licence 3137 (MA)
Occupational Therapist Taxonomy 225X00000X · Licence 1370 (NH)
Environmental Modification Occupational Therapist Taxonomy 225XE0001X · Licence 1370 (NH)
Gerontology Occupational Therapist Taxonomy 225XG0600X · Licence 3137 (MA)
Gerontology Occupational Therapist Taxonomy 225XG0600X · Licence 1370 (NH)
Human Factors Occupational Therapist Taxonomy 225XH1300X · Licence 3137 (MA)
Human Factors Occupational Therapist Taxonomy 225XH1300X · Licence 1370 (NH)
Low Vision Occupational Therapist Taxonomy 225XL0004X · Licence 3137 (MA)
Low Vision Occupational Therapist Taxonomy 225XL0004X · Licence 1370 (NH)
Neurorehabilitation Occupational Therapist Taxonomy 225XN1300X · Licence 3137 (MA)
Neurorehabilitation Occupational Therapist Taxonomy 225XN1300X · Licence 1370 (NH)
Physical Rehabilitation Occupational Therapist Taxonomy 225XP0019X · Licence 3137 (MA)
Physical Rehabilitation Occupational Therapist Taxonomy 225XP0019X · Licence 1370 (NH)
Driving and Community Mobility Occupational Therapist Taxonomy 225XR0403X · Licence 3137 (MA)

Record details

NPI number1124647730
Entity typeIndividual (Type 1)
GenderFemale
Credentials OTR/L
Sole proprietorYes
NPI enumeratedApril 14, 2020
Last updated in NPPESApril 14, 2020
Certification dateApril 14, 2020