Margaret Yen-Chuang Matthews, P.T.
Physical Therapist · Grass Valley, CA
Margaret Yen-Chuang Matthews, P.T. is a physical therapist with a practice address in Grass Valley, California, and NPI 1699096248, issued on Jun 17, 2010. Check the license (California PT 35594, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Margaret Yen-Chuang Matthews
- Credential
- P.T.
- Primary taxonomy
- Physical Therapist 225100000X
- License number
- PT 35594 CA
Self-reported in NPPES; status is on the state search - Practice location
- 102 Catherine LN Ste A, Grass Valley, CA 95945
- Phone
- (530) 478-1933
- Enumerated
- Jun 17, 2010
- Record last updated
- Jan 10, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (530) 478-1933
- Medicare enrollment
- Enrolled (PECOS I20141208000616); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 22,531 in California → Look up another NPI →
Also registered at 102 Catherine LN Ste A
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Allison Maffei, DPTPhysical Therapist1821517178
- Corey Vanderwouw, PTPhysical Therapist1013076827
- Daniel Walden, DPTPhysical Therapist1881066819
Verify Margaret Yen-Chuang Matthews in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PT 35594Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Milestone Physical Therapy IncRoseville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Margaret Yen-Chuang Matthews among 22,531 physical therapist records in California
Margaret Yen-Chuang Matthews, P.T. is one of 22,531 physical therapist records with a practice address in California. 32% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 33% of them.
- NPI issued2010 · 33% of these records are older, 64% newer
- In a Medicare fileYes · 32% of these records are
- In the CMS Doctors and Clinicians fileYes · 34% of these records are
- Graduated2008 · median 2017 among the 7,751 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 225100000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
59 physical therapist records list a practice address in Grass Valley
They are 59 of the 1,540 NPPES records with a practice address in Grass Valley, and 22,531 physical therapist records in California.
All 22,531 in California → Every provider in Grass Valley → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Patricia Baker, P.T.Grass Valley, CA 959451265524789
- Ingrid Bhend, PTGrass Valley, CA 959451356441372
- Kimberly Blue Falvey, P.T.Grass Valley, CA 959451124115225
- Tomi Connors Corbett, PTGrass Valley, CA 959451023118965
- Cheryl Cox, PTGrass Valley, CA 959451427148923
- Sheri Cutter, PTGrass Valley, CA 959451801996814
- Marion Gilbert, P.T.Grass Valley, CA 959451154413623
- Kevin Ivey, P.T.Grass Valley, CA 959451962596908
Common questions
What is Margaret Yen-Chuang Matthews, P.T.'s NPI number?
Margaret Yen-Chuang Matthews, P.T.'s National Provider Identifier (NPI) is 1699096248, issued on Jun 17, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Margaret Yen-Chuang Matthews, P.T. located?
The NPPES record lists a practice address at 102 Catherine LN Ste A, Grass Valley, CA, 95945. Phone: (530) 478-1933. Providers update this record themselves, so call before visiting.
How can I verify Margaret Yen-Chuang Matthews, P.T.'s license?
NPPES lists California license number PT 35594, 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.
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.