NPPES file of Aug 9, 2026

Matthew S. Walzer, DPT

Orthopedic Physical Therapist · Laguna Niguel, CA

Matthew S. Walzer, DPT is an orthopedic physical therapist with a practice address in Laguna Niguel, California, and NPI 1164472585, issued on May 10, 2006. Check the license (California PT21849, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164472585
Name
Matthew S. Walzer
Credential
DPT
Primary taxonomy
Orthopedic Physical Therapist 2251X0800X
License number
PT21849 CA
Self-reported in NPPES; status is on the state search
Practice location
31271 Niguel RD Ste J, Laguna Niguel, CA 92677
Phone
(949) 443-5442
Enumerated
May 10, 2006
Record last updated
Apr 14, 2026
Fax
(949) 443-5463
Medicare enrollment
Enrolled (PECOS I20040524001007); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest orthopedic physical therapist records → All 1,641 in California → Look up another NPI →

Also registered at 31271 Niguel RD Ste J

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Marena Boctor Nakhla, DPTPhysical Medicine & Rehabilitation Physician1215472576
  2. Emily Collins, PT, DPTPhysical Therapist1972149821
  3. Kendra Cornelius, DPTPhysical Therapist1831671189
  4. Marni Cota, PTPhysical Therapist1669470407
  5. Renee Cullen, DPTPhysical Therapist1962947788
  6. Teresa Del Real Delfin, DPTPhysical Therapist1386277143

Verify Matthew S. Walzer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich California board licenses this profession
    Search for license PT21849    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Find the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Grace Physical Therapy, Inc.Laguna Niguel, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Matthew S. Walzer among 1,641 orthopedic physical therapist records in California

Matthew S. Walzer, DPT is one of 1,641 orthopedic physical therapist records with a practice address in California. 42% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 2% of them.

  • NPI issued2006 · 2% of these records are older, 82% newer
  • In a Medicare fileYes · 42% of these records are
  • In the CMS Doctors and Clinicians fileYes · 43% of these records are
  • Graduated1995 · median 2013 among the 703 with a school on file
  • Record last updated2026 · 64% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2251X0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Orthopedic Physical Therapist providers in California

There are 1,641 orthopedic physical therapist records in California.

All 1,641 in California → Every provider in Laguna Niguel → Orthopedic Physical Therapist nationwide →

The 8 orthopedic physical therapist records with the nearest ZIP codes

  1. Frances LeongLaguna Niguel, CA 926771174157762
  2. Paul BatchelorSan Juan Capistrano, CA 926751932389996
  3. Arthur BrandenburgSan Juan Capistrano, CA 926751154915825
  4. Melissa De La OSan Juan Capistrano, CA 926751164602124
  5. Ricardo Hernandez, PT DPTSan Juan Capistrano, CA 926751740999739
  6. Tyler Kist, PT, DPTSan Juan Capistrano, CA 926751558070599
  7. Brady Martin, P.T.San Juan Capo, CA 926751578512950
  8. Mirko Vuksic, MPT, OCS, CSCSSan Juan Capistrano, CA 926751922107614

Common questions

What is Matthew S. Walzer, DPT's NPI number?

Matthew S. Walzer, DPT's National Provider Identifier (NPI) is 1164472585, issued on May 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Matthew S. Walzer, DPT located?

The NPPES record lists a practice address at 31271 Niguel RD Ste J, Laguna Niguel, CA, 92677. Phone: (949) 443-5442. Providers update this record themselves, so call before visiting.

How can I verify Matthew S. Walzer, DPT's license?

NPPES lists California license number PT21849, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.