William Mashtalier, MPT
Physical Therapist · Phelan, CA
William Mashtalier, MPT is a physical therapist with a practice address in Phelan, California, and NPI 1235309881, issued on Mar 10, 2008. Check the license (California 22762, as entered in NPPES) with the California board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William Mashtalier
- Credential
- MPT
- Primary taxonomy
- Physical Therapist 225100000X
- License number
- 22762 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3936 Phelan RD, Phelan, CA 92371
- Phone
- (760) 220-6932
- Enumerated
- Mar 10, 2008
- Entity
- Type 1 · individual
Also registered at 3936 Phelan RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Patricia Felt, PTPhysical Therapist1700049335
- Kimberly LozaPharmacy Technician1164585113
- Michelle MarconnetteGeneral Practice Dentistry1841699394
- Sheryl Mateer, PHARMACY TECHPharmacy Technician1366505315
- Sharon Norris, PHARMACY TECHNICIANPharmacy Technician1598828469
- Peter Stoops, D.O.Family Medicine Physician1518912526
Verify William Mashtalier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 22762Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
2 physical therapist records list a Phelan practice address
They are 2 of the 48 NPPES records with a Phelan practice address, and 22,359 physical therapist records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 2 in Phelan → All 22,359 in California → Every provider in Phelan →
Other physical therapist records in California
- Jennifer Aanestad, PTPinole, CA1033786215
- Sarah Aaron, DPTManhattan Beach, CA1275270282
- Alexander Abad, M.P.T.San Francisco, CA1790848505
- Edgar Fernando Abad, P.T.Pasadena, CA1982784542
- Trisha Abad-GarciaCastro Valley, CA1316284664
- Joseph Abano, PT, DPTGlendale, CA1376298968
- Jennifer Abanto, RPTPasadena, CA1992476501
- Peter John Abanto, PTSan Diego, CA1760367460
- Leslie Abarca, DPTLos Angeles, CA1518890383
- Valeria Abarca, DPTMission Viejo, CA1164024683
Common questions
What is William Mashtalier, MPT's NPI number?
William Mashtalier, MPT's National Provider Identifier (NPI) is 1235309881, issued on Mar 10, 2008. An NPI identifies a provider in billing; it is not a license.
Where is William Mashtalier, MPT located?
The NPPES record lists a practice address at 3936 Phelan RD, Phelan, CA, 92371. Phone: (760) 220-6932. Providers update this record themselves, so call before visiting.
How can I verify William Mashtalier, MPT's license?
NPPES lists California license number 22762, 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), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.