Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mrs. Marilen Mamuyac Grimm, OTR

Individual provider Occupational Therapist · NPI 1881768224

Mrs. Marilen Mamuyac Grimm, OTR is registered under Occupational Therapist in Private Practice in Glendale, California. Qualified in 2000, 26 years ago. Practices with Wellworks Physical Therapy and Rehabilitation Inc, a 15-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
26
Licensed in
CA
In the registry since
2006
Specialties on file
4
What do these letters mean?
OTR — Occupational Therapist, Registered
A nationally registered occupational therapist.

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Practice location Address checks out

500 W Glenoaks Blvd
Glendale, CA 91202 Not confirmed with CMS for 16 years — call before visiting
Phone: (818) 637-2127
Fax: (818) 637-2126
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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 OT 8425 (CA)
Neurorehabilitation Occupational Therapist Taxonomy 225XN1300X · Licence OT 8425 (CA)
Ergonomics Occupational Therapist Taxonomy 225XE1200X · Licence OT 8425 (CA)
Hand Occupational Therapist Taxonomy 225XH1200X · Licence OT8425 (CA)

Record details

NPI number1881768224
Entity typeIndividual (Type 1)
GenderFemale
Credentials OTR
Sole proprietorNo
NPI enumeratedNovember 18, 2006
Last updated in NPPESAugust 18, 2010

Medicare enrollment

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

Medicare specialtyOCCUPATIONAL THERAPIST IN PRIVATE PRACTICE
Medical schoolOTHER
Graduated 2000 (26 years in practice)
Group practice Wellworks Physical Therapy And Rehabilitation Inc — 15 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Colleagues at Wellworks Physical Therapy and Rehabilitation Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 15 clinicians in the practice; 12 are shown here.

Other providers in Glendale