ETHEL MAE MACCALLUM OTR
NPI 1336669720
Occupational Therapist in Katy, TX

Active since June 26, 2017Accepts Medicare Assignment
810 S MASON RD, KATY, TX 77450(281) 652-5200(818) 357-2505 Get Directions Write a Review

NPPES record last updated: July 3, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Ethel Mae Maccallum Otr NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ETHEL MAE MACCALLUM OTR (NPI 1336669720) is an individual occupational therapist in Katy, Texas, licensed in Texas (108431) and active in the NPI registry since June 2017. She maintains 8 additional practice locations and is a graduate of Other (1983).

NPPES Registry Identity

NPI1336669720
Entity TypeIndividualFemale
Primary Taxonomy225X00000X
Provider Legal NameETHEL MAE MACCALLUMCredential: OTR
Location Address810 S MASON RDKaty, TX 77450-3895
Mailing Address605 Pelican StMagnolia, TX 77355-3421 · (817) 292-8787 · Fax (817) 789-6849
Fax(818) 357-2505
Sole ProprietorYes
Medical School CMSOtherGraduated 1983
Enumeration DateJune 26, 2017
Last NPPES UpdateJuly 3, 2026
NPPES CertifiedJuly 3, 2026
✔ NPI 1336669720 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOccupational TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225X00000X
Licenses✔ Licensed in TX · 108431✔ Licensed in CA · 27508
Definition
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.
810 S MASON RD, Katy, TX 77450

Secondary Practice Locations 8

Location 1599 S Barranca Ave Ste 555Covina, CA 91723-2791 · Phone (818) 894-2273 · Fax (818) 357-2505
Location 26320 Canoga Ave Fl 15Woodland Hills, CA 91367-2563 · Phone (818) 894-2273 · Fax (818) 357-2505
Location 38929 Aero Dr Ste ESan Diego, CA 92123-2231 · Phone (877) 757-8353 · Fax (818) 357-2505
Location 43356 W Ball Rd Ste 219Anaheim, CA 92804-3728 · Phone (818) 894-2273 · Fax (818) 357-2505
Location 514515 Briarhills Pkwy Ste 208Houston, TX 77077-1034 · Phone (832) 850-2733 · Fax (713) 575-2031
Location 64300 Long Beach Blvd Ste 700Long Beach, CA 90807-2000 · Phone (818) 894-2273 · Fax (818) 357-2505
Location 75806 Pacific BlvdHuntington Park, CA 90255-2618 · Phone (818) 894-2273 · Fax (818) 357-2505
Location 86420 Wilshire Blvd Ste 600Los Angeles, CA 90048-5521 · Phone (818) 894-2273 · Fax (818) 357-2505

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Ethel Mae Maccallum Otr is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3274069182
PECOS Enrollment IDI20260313000000

Medicare Billing Reassignments

3

Medicare enrollment records show Ethel Maccallum reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Same address
Behavior Analyst
810 S MASON RD STE 315
Katy, TX 77450
  • Reassigned Medicare billing, Texas enrollment
  • 48 clinicians in this Medicare group
Rehabilitation
8008 ASHLANE WAY STE 120
Spring, TX 77382
  • Reassigned Medicare billing, Texas enrollment
  • 11 clinicians in this Medicare group
Physical Therapist
6320 CANOGA AVE FL 15
Woodland Hills, CA 91367
  • Reassigned Medicare billing, California enrollment
  • Medicare enrollment name: All Care Physical Therapy, PC
  • 266 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Occupational Therapist
810 S MASON RD
KATY, TX 77450
Speech-Language Pathologist
810 S MASON RD
KATY, TX 77450
Speech-Language Pathologist
810 S MASON RD
KATY, TX 77450
Dentist
810 S MASON RD, STE 215
KATY, TX 77450
Speech-Language Pathologist
810 S MASON RD
KATY, TX 77450
Speech-Language Pathologist
810 S MASON RD
KATY, TX 77450
Speech-Language Pathologist
810 S MASON RD
KATY, TX 77450
Speech-Language Pathologist
810 S MASON RD
KATY, TX 77450

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ethel Maccallum's NPI number?

The NPI number for Ethel Maccallum is 1336669720. It was assigned to this individual provider in the NPPES registry on June 26, 2017.

Where is Ethel Maccallum located?

Ethel Maccallum practices at 810 S Mason Rd, Katy, TX 77450. The listed phone number is (281) 652-5200.

What is Ethel Maccallum's specialty?

The primary specialty registered for this NPI is Occupational Therapist with taxonomy code 225X00000X.

Is Ethel Maccallum enrolled in Medicare?

Yes. Ethel Maccallum is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Ethel Maccallum's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ethel Maccallum reassigns Medicare benefits to 3 organizations: Slptele LLC (Katy, TX), Post Therapy LLC (Spring, TX) and All Care Physical Therapy, P.C. (Woodland Hills, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ethel Maccallum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ethel Maccallum accept?

Health plans from Blue Cross and Blue Shield of Texas, Oscar Insurance Company, UnitedHealthcare and WellPoint list Ethel Maccallum as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ethel Maccallum was last updated on July 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.