MALOU DIAZ PT
NPI 1669726543
Physical Therapist in Hammond, IN

Active since October 31, 2012
1738 165TH ST STE A, HAMMOND, IN 46320(219) 844-1782(219) 844-1830 Get Directions Write a Review

NPPES record last updated: June 17, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Malou Diaz Pt NPPES

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

MALOU DIAZ PT (NPI 1669726543) is an individual physical therapist in Hammond, Indiana, licensed in Indiana (05007064A) and active in the NPI registry since October 2012. She maintains a secondary practice location in Weston.

NPPES Registry Identity

NPI1669726543
Entity TypeIndividualFemale
Primary Taxonomy225100000X
Provider Legal NameMALOU DIAZCredential: PT
Location Address1738 165TH ST STE AHammond, IN 46320-2821
Mailing Address790 Remington BlvdBolingbrook, IL 60440-4909 · (630) 296-2223 · Fax (630) 759-9510
Fax(219) 844-1830
Sole ProprietorNo
Enumeration DateOctober 31, 2012
Last NPPES UpdateJune 17, 2025
NPPES CertifiedJune 17, 2025
✔ NPI 1669726543 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysical TherapistRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code225100000X
License✔ Licensed in IN · 05007064A
Definition
Physical therapists (PTs) are licensed health care professionals who diagnose and treat individuals of all ages, from newborns to the very oldest, who have medical problems or other health-related conditions that limit their abilities to move and perform functional activities in their daily lives. PTs examine each individual and develop a plan using treatment techniques to promote the ability to move, reduce pain, restore function, and prevent disability. In addition, PTs work with individuals to prevent the loss of mobility before it occurs by developing fitness- and wellness-oriented programs for healthier and more active lifestyles. PTs:
  • Diagnose and manage movement dysfunction and enhance physical and functional abilities.
  • Restore, maintain, and promote not only optimal physical function but optimal wellness and fitness and optimal quality of life as it relates to movement and health.
  • Prevent the onset, symptoms, and progression of impairments, functional limitations, and disabilities that may result from diseases, disorders, conditions, or injuries.
  • Treat conditions of the musculoskeletal, neuromuscular, cardiovascular, pulmonary, and/or integumentary systems.
  • Address the negative effects attributable to unique personal and environmental factors as they relate to human performance.
PTs provide care for people in a variety of settings, including hospitals, private practices, outpatient clinics, home health agencies, schools, sports and fitness facilities, work settings, and nursing homes. State licensure is required in each state in which a PT practices.
1738 165TH ST STE A, Hammond, IN 46320

Other Names 1

Former Name (1)Maria Lourdes Diaz Bustalino

Secondary Practice Location 1

Location 13400 Ministry PkwyWeston, WI 54476-5220 · Phone (715) 393-1000

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Malou Diaz Pt is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignments

6

Medicare enrollment records show Malou Diaz reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Family Medicine
420 W NORTH ST
Juneau, WI 53039
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,447 clinicians in this Medicare group
Mental Health (Including Community Mental Health Center)
2450 VINEYARD DR
Plover, WI 54467
  • Reassigned Medicare billing, Wisconsin enrollment
  • Also billed through NPI 1952890873 (Wisconsin)
  • 2,476 clinicians in this Medicare group
Clinic/Center
1000 N OAK AVE
Marshfield, WI 54449
  • Reassigned Medicare billing, Wisconsin enrollment
  • 2,540 clinicians in this Medicare group
Clinical Medical Laboratory
216 SUNSET PL, MEMORIAL HOSPITAL, INC
Neillsville, WI 54456
  • Reassigned Medicare billing, Wisconsin enrollment
  • Also billed through NPI 1346239373 (Wisconsin)
  • 1,283 clinicians in this Medicare group
Clinic/Center
806 2ND ST
Chetek, WI 54728
  • Reassigned Medicare billing, Wisconsin enrollment
  • 1,616 clinicians in this Medicare group
Clinic/Center
98 SHERRY AVE
Park Falls, WI 54552
  • Reassigned Medicare billing, Wisconsin enrollment
  • Also billed through NPI 1700963048 (Wisconsin)
  • 1,351 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 3

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

Physical Therapist
1738 165TH ST STE A
HAMMOND, IN 46320
Physical Therapist
1738 165TH ST STE A
HAMMOND, IN 46320
Physical Therapist
1738 165TH ST STE A
HAMMOND, IN 46320

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 Malou Diaz's NPI number?

The NPI number for Malou Diaz is 1669726543. It was assigned to this individual provider in the NPPES registry on October 31, 2012. The provider is also known as Maria Lourdes Diaz Bustalino.

Where is Malou Diaz located?

Malou Diaz practices at 1738 165th St Ste A, Hammond, IN 46320. The listed phone number is (219) 844-1782.

What is Malou Diaz's specialty?

The primary specialty registered for this NPI is Physical Therapist with taxonomy code 225100000X.

Is Malou Diaz enrolled in Medicare?

Yes. Malou Diaz is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Malou Diaz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Malou Diaz reassigns Medicare benefits to 6 organizations: Beaver Dam Community Hospitals Inc (Juneau, WI), Mchs Hospitals, Inc. (Plover, WI), Marshfield Clinic Inc (Marshfield, WI), Memorial Hospital, Inc (Neillsville, WI), Lakeview Medical Center Inc Of Rice Lake (Chetek, WI) and 1 more organization, listed in the Medicare section above. 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 Malou Diaz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Malou Diaz was last updated on June 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.