MARY ELIZABETH DIEDRICH P.T.
NPI 1639514318
Physical Therapist in Phoenix, AZ

Active since May 07, 2013
4530 E MUIRWOOD DR, SUITE 111, PHOENIX, AZ 85048(480) 961-2365 Get Directions Write a Review

NPPES record last updated: May 7, 2013. Verified against the NPPES registry weekly; last sync: November 08, 2026.

About Mary Elizabeth Diedrich P.t. NPPES

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

MARY ELIZABETH DIEDRICH P.T. (NPI 1639514318) is an individual physical therapist in Phoenix, Arizona, licensed in Arizona (5232) and active in the NPI registry since May 2013. She is a graduate of Other (2020).

NPPES Registry Identity

NPI1639514318
Entity TypeIndividualFemale
Primary Taxonomy225100000X
Provider Legal NameMARY ELIZABETH DIEDRICHCredential: P.T.
Location Address4530 E MUIRWOOD DR, SUITE 111Phoenix, AZ 85048-7639
Mailing Address4530 E Muirwood Dr, Suite 111Phoenix, AZ 85048-7639 · (480) 961-2365
Sole ProprietorYes
Medical School CMSOtherGraduated 2020
Enumeration DateMay 7, 2013
✔ NPI 1639514318 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 AZ · 5232
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.
4530 E MUIRWOOD DR, Phoenix, AZ 85048

Other Names 1

Former Name (1)Mary Diedrich Cook P.t.

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Elizabeth Diedrich P.t. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8224507124
PECOS Enrollment IDI20260520002724

Medicare Billing Reassignment

Medicare enrollment records show Mary Diedrich reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Neurology
4530 E MUIRWOOD DR STE 111
Phoenix, AZ 85048
  • Reassigned Medicare billing, Arizona enrollment
  • 30 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.

Behavior Analyst
4530 E MUIRWOOD DR, SUITE 103
PHOENIX, AZ 85048
Internal Medicine
4530 E MUIRWOOD DR
PHOENIX, AZ 85048
Behavior Analyst
4530 E MUIRWOOD DR, STE. 103
PHOENIX, AZ 85048
Internal Medicine
4530 E MUIRWOOD DR, 105
PHOENIX, AZ 85048
Behavior Analyst
4530 E MUIRWOOD DR
PHOENIX, AZ 85048
Psychiatry & Neurology (Neurology)
4530 E MUIRWOOD DR, SUITE 111
PHOENIX, AZ 85048
Nurse Practitioner (Family)
4530 E MUIRWOOD DR, STE 111
PHOENIX, AZ 85048
Internal Medicine
4530 E MUIRWOOD DR, SUITE 105
PHOENIX, AZ 85048

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 Mary Diedrich's NPI number?

The NPI number for Mary Diedrich is 1639514318. It was assigned to this individual provider in the NPPES registry on May 7, 2013. The provider is also known as Mary Diedrich Cook P.T..

Where is Mary Diedrich located?

Mary Diedrich practices at 4530 E Muirwood Dr Suite 111, Phoenix, AZ 85048. The listed phone number is (480) 961-2365.

What is Mary Diedrich's specialty?

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

Is Mary Diedrich enrolled in Medicare?

Yes. Mary Diedrich is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mary Diedrich's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mary Diedrich reassigns Medicare benefits to Foothills Neurology P C (Phoenix, AZ). The 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 Mary Diedrich'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 Mary Diedrich was last updated on May 7, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.