1. Home
  2. Directory
  3. California
  4. Laguna Niguel
  5. Physical Therapist
  6. NPI Profile

MR. MATTHEW S. WALZER DPT
NPI 1164472585
Physical Therapist - Orthopedic in Laguna Niguel, CA

Active since May 10, 2006Accepts Medicare Assignment
31271 NIGUEL RD STE J, LAGUNA NIGUEL, CA 92677(949) 443-5442(949) 443-5463 Get Directions Write a Review

NPPES record last updated: April 14, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Apr 14, 2026, Dec 7, 2018, Nov 2, 2017 (3 updates tracked since 2017).

About Mr. Matthew S. Walzer Dpt NPPES

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

MR. MATTHEW S. WALZER DPT (NPI 1164472585) is an individual orthopedic provider in Laguna Niguel, California, licensed in California (PT21849) and active in the NPI registry since May 2006. He is a graduate of Other (1995).

NPPES Registry Identity

NPI1164472585
Entity TypeIndividualMale
Primary Taxonomy2251X0800X
Provider Legal NameMR. MATTHEW S. WALZERCredential: DPT
Location Address31271 NIGUEL RD STE JLaguna Niguel, CA 92677-4135
Mailing Address9850 Genesee Ave, Suite 210Lajolla, CA 92037 · (858) 535-1075 · Fax (858) 453-9810
Phone(949) 443-5442
Fax(949) 443-5463
Sole ProprietorNo
Medical School CMSOtherGraduated 1995
Enumeration DateMay 10, 2006
Last NPPES UpdateApril 14, 20263 updates tracked since enumeration
NPPES CertifiedApril 14, 2026
✔ NPI 1164472585 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPhysical Therapist · OrthopedicRespiratory, Developmental, Rehabilitative and Restorative Service Providers
Taxonomy Code2251X0800X
License✔ Licensed in CA · PT21849
Definition
A licensed physical therapist, including but not limited to an individual who is a Board Certified Specialist in Orthopaedic Physical Therapy, who has demonstrated specialized knowledge and skill in human anatomy and physiology, movement science; pathology/pathophysiology, pain science, medical and surgical considerations, orthopaedic physical therapy theory and practice, and critical inquiry for evidence-based practice.
Also ListedPhysical TherapistTaxonomy 225100000X
31271 NIGUEL RD STE J, Laguna Niguel, CA 92677
Open in Google Maps ↗

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

Mr. Matthew S. Walzer Dpt 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 ID2062403397
PECOS Enrollment IDI20040524001007

Medicare Billing Reassignments

2

Medicare enrollment records show Matthew Walzer reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Grace Physical Therapy, Inc.
0.1 mi
Specialist
31341 NIGUEL RD STE G
Laguna Niguel, CA 92677
  • Reassigned Medicare billing, California enrollment
  • 15 clinicians in this Medicare group
NPI 1386668739 (949) 443-5442
California Rehabilitation & Sports Therapy A California Physical Ther
2.8 mi
Physical Therapist
31105 RANCHO VIEJO RD STE C9
San Juan Capistrano, CA 92675
  • Reassigned Medicare billing, California enrollment
  • 286 clinicians in this Medicare group
NPI 1497268742 (949) 496-4330

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

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Therapy procedure using functional activities 97530
A therapy procedure using functional activities encourages you to use your own body movements in day-to-day tasks to aid recovery. It aims to improve your mobility, strength, and overall health by incorporating therapeutic exercises into your routine.
871 services91 patients
Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes 97112
This therapy helps retrain your brain, nerves, and muscles to work together. Through targeted exercises, your body learns to regain lost functions or improve current abilities. Each session lasts 15 minutes.
824 services88 patients
Therapy procedure using manual technique, each 15 minutes 97140
This therapy involves using hands-on techniques to help improve your body's movement and function. These techniques may include stretching, resistance exercises, or gentle pressure. Each session lasts 15 minutes and aims to relieve pain, promote healing, and improve your overall health.
813 services105 patients
Therapy procedure using exercise to develop strength, endurance, range of motion, and flexibility, each 15 minutes 97110
This therapy involves exercises to boost strength, endurance, flexibility, and range of motion. Each session lasts 15 minutes. The goal is to improve physical function and overall health. It's a safe, beneficial method for enhancing well-being and fitness.
216 services51 patients
Evaluation for physical therapy, typically 20 minutes 97161
An evaluation for physical therapy is a short, 20-minute assessment where your physical condition, mobility, and pain levels are examined. This helps in designing a personalized therapy plan to enhance your physical function and well-being.
48 services45 patients
Evaluation for physical therapy, typically 30 minutes 97162
An evaluation for physical therapy is a 30-minute session where a physical therapist assesses your current physical condition. They'll examine your strength, flexibility, balance, and mobility to identify areas needing improvement. This helps tailor a therapy plan to your specific needs.
12 services12 patients

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.

MRS. MELISSA ANN MATHES RDN
Dietitian, Registered
31271 NIGUEL RD STE J
LAGUNA NIGUEL, CA 92677
Orange County (949) 322-7082
JOHN THOMAS
Physical Therapist
31271 NIGUEL RD STE J
LAGUNA NIGUEL, CA 92677
Orange County (949) 443-5442
MARIANNE SULLIVAN P.T.
Physical Therapist
31271 NIGUEL RD STE J
LAGUNA NIGUEL, CA 92677
Orange County (949) 443-5442
DR. TARA MEGAN POLLAK DPT, CSCS
Physical Therapist
31271 NIGUEL RD STE J
LAGUNA NIGUEL, CA 92677
Orange County (949) 443-5442
TERI GAIL TACHIBANA PT
Physical Therapist
31271 NIGUEL RD STE J
LAGUNA NIGUEL, CA 92677
Orange County (949) 443-5442
MARENA BOCTOR NAKHLA DPT
Physical Medicine & Rehabilitation
31271 NIGUEL RD STE J
LAGUNA NIGUEL, CA 92677
Orange County (949) 443-5442
CAYLIN ALEXIS VANONI PTA
Physical Therapy Assistant
31271 NIGUEL RD STE J
LAGUNA NIGUEL, CA 92677
Orange County (949) 443-5442
JULIE ANN THOMAS PT, DPT
Physical Therapist
31271 NIGUEL RD STE J
LAGUNA NIGUEL, CA 92677
Orange County (949) 443-5442

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 Matthew Walzer's NPI number?

The NPI number for Matthew Walzer is 1164472585. It was assigned to this individual provider in the NPPES registry on May 10, 2006.

Where is Matthew Walzer located?

Matthew Walzer practices at 31271 Niguel Rd Ste J, Laguna Niguel, CA 92677. The listed phone number is (949) 443-5442.

What is Matthew Walzer's specialty?

The primary specialty registered for this NPI is Physical Therapist, specializing in Orthopedic, with taxonomy code 2251X0800X.

Is Matthew Walzer enrolled in Medicare?

Yes. Matthew Walzer 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 Matthew Walzer's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Matthew Walzer reassigns Medicare benefits to 2 organizations: Grace Physical Therapy, Inc. (Laguna Niguel, CA) and California Rehabilitation & Sports Therapy A California Physical Ther (San Juan Capistrano, 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 Matthew Walzer'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 Matthew Walzer was last updated on April 14, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.