William Edward Weiss, R.P.T.
Physical Therapist · Fontana, CA
William Edward Weiss, R.P.T. is a physical therapist with a practice address in Fontana, California, and NPI 1861513061, issued on Apr 3, 2007. Check the license (California PT 15523, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- William Edward Weiss
- Credential
- R.P.T.
- Primary taxonomy
- Physical Therapist 225100000X
- License number
- PT 15523 CA
Self-reported in NPPES; status is on the state search - Practice location
- 9985 Sierra Ave, Fontana, CA 92335
- Phone
- (909) 427-6995
- Enumerated
- Apr 3, 2007
- Record last updated
- Nov 29, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (909) 427-4847
- Medicare enrollment
- Enrolled (PECOS I20110315000573); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physical therapist records → All 22,531 in California → Look up another NPI →
Also registered at 9985 Sierra Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Olga Acosta, MDPediatrics Physician1861404832
- Najjia Ahmed, M.D.Pediatrics Physician1699110395
- Anje'Le AlstonSports Medicine (Internal Medicine) Physician1356970842
- Peyman Andalib, MDStudent in an Organized Health Care Education/Training Program1104028000
- Gerald ArafolOccupational Therapist1134315666
- Lovie Jay Arguelles, PTPhysical Therapist1457472920
Verify William Edward Weiss 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 15523Check 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
- Southern California Permanente Medical GroupFontana, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Edward Weiss among 22,531 physical therapist records in California
William Edward Weiss, R.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 2007, is newer than 16% of them.
- NPI issued2007 · 16% of these records are older, 73% newer
- In a Medicare fileYes · 32% of these records are
- In the CMS Doctors and Clinicians fileYes · 34% of these records are
- Graduated1988 · median 2017 among the 7,751 with a school on file
- Record last updated2021 · 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).
74 physical therapist records list a practice address in Fontana
They are 74 of the 3,012 NPPES records with a practice address in Fontana, and 22,531 physical therapist records in California.
All 22,531 in California → Every provider in Fontana → Physical Therapist nationwide →
The 8 physical therapist records with the nearest ZIP codes
- Michelle Arguelles, MPTFontana, CA 923351366598450
- Lovie Jay Arguelles, PTFontana, CA 923351457472920
- Gary Davey, P.T.Fontana, CA 923351578683751
- Michelle Denopra, PTFontana, CA 923351558584482
- Mark Erskine, P.T.Fontana, CA 923351760605513
- Frank Holder, P.T.Fontana, CA 923351275652083
- Jaime Kerr-Lewis, P.T.Fontana, CA 923351427178961
- Farid Khattar, PTFontana, CA 923351588781678
Common questions
What is William Edward Weiss, R.P.T.'s NPI number?
William Edward Weiss, R.P.T.'s National Provider Identifier (NPI) is 1861513061, issued on Apr 3, 2007. An NPI identifies a provider in billing; it is not a license.
Where is William Edward Weiss, R.P.T. located?
The NPPES record lists a practice address at 9985 Sierra Ave, Fontana, CA, 92335. Phone: (909) 427-6995. Providers update this record themselves, so call before visiting.
How can I verify William Edward Weiss, R.P.T.'s license?
NPPES lists California license number PT 15523, 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.