SIERRA DEE DOWNUM DPT, PT
NPI 1154919132
Physical Therapist in Mililani, HI

Active since January 06, 2021
95-1105 AINAMAKUA DR STE 203, MILILANI, HI 96789(808) 381-8947(800) 586-4356 Get Directions Write a Review

NPPES record last updated: January 6, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Sierra Dee Downum Dpt, Pt NPPES

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

SIERRA DEE DOWNUM DPT, PT (NPI 1154919132) is an individual physical therapist in Mililani, Hawaii and active in the NPI registry since January 2021.

NPPES Registry Identity

NPI1154919132
Entity TypeIndividualFemale
Primary Taxonomy225100000X
Provider Legal NameSIERRA DEE DOWNUMCredential: DPT, PT
Location Address95-1105 AINAMAKUA DR STE 203Mililani, HI 96789-6313
Mailing Address1401 S Beretania St Ste 550Honolulu, HI 96814-1880 · (808) 381-8947 · Fax (800) 586-4356
Fax(800) 586-4356
Sole ProprietorNo
Enumeration DateJanuary 6, 2021
NPPES CertifiedJanuary 6, 2021
✔ NPI 1154919132 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
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.
95-1105 AINAMAKUA DR STE 203, Mililani, HI 96789

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Sierra Dee Downum Dpt, Pt is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Billing Reassignments

4

Medicare enrollment records show Sierra Downum reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Physical Therapist
95-1105 AINAMAKUA DR STE 203
Mililani, HI 96789
  • Reassigned Medicare billing, Hawaii enrollment
  • 54 clinicians in this Medicare group
Physical Therapist
94-849 LUMIAINA ST UNIT 101
Waipahu, HI 96797
  • Reassigned Medicare billing, Hawaii enrollment
  • 54 clinicians in this Medicare group
Physical Therapist
599 FARRINGTON HWY STE 206
Kapolei, HI 96707
  • Reassigned Medicare billing, Hawaii enrollment
  • 54 clinicians in this Medicare group
Physical Therapist
1401 S BERETANIA ST STE 550
Honolulu, HI 96814
  • Reassigned Medicare billing, Hawaii enrollment
  • 56 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 8

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

Physical Therapist
95-1105 AINAMAKUA DR STE 203
MILILANI, HI 96789
Physical Therapist
95-1105 AINAMAKUA DR STE 203
MILILANI, HI 96789
Physical Therapist
95-1105 AINAMAKUA DR STE 203
MILILANI, HI 96789
Physical Therapist
95-1105 AINAMAKUA DR STE 203
MILILANI, HI 96789
Physical Therapist
95-1105 AINAMAKUA DR STE 203
MILILANI, HI 96789
Physical Therapist
95-1105 AINAMAKUA DR STE 203
MILILANI, HI 96789
Physical Therapist
95-1105 AINAMAKUA DR STE 203
MILILANI, HI 96789
Physical Therapist
95-1105 AINAMAKUA DR STE 203
MILILANI, HI 96789

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 Sierra Downum's NPI number?

The NPI number for Sierra Downum is 1154919132. It was assigned to this individual provider in the NPPES registry on January 6, 2021.

Where is Sierra Downum located?

Sierra Downum practices at 95-1105 Ainamakua Dr Ste 203, Mililani, HI 96789. The listed phone number is (808) 381-8947.

What is Sierra Downum's specialty?

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

Is Sierra Downum enrolled in Medicare?

Yes. Sierra Downum is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Sierra Downum's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sierra Downum reassigns Medicare benefits to 4 organizations: Jaco Rehab Mililani Limited Partnership (Mililani, HI), Jaco Rehab Waikele Limited Partnership (Waipahu, HI), Jaco Rehab Kapolei Limited Partnership (Kapolei, HI) and Jaco Rehab Honolulu Limited Partnership (Honolulu, HI). 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 Sierra Downum'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 Sierra Downum was last updated on January 6, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.