Gail Zwier, PH.D.
Clinical Psychologist · Bishop, CA
Gail Zwier, PH.D. is a clinical psychologist with a practice address in Bishop, California, and NPI 1548365869, issued on Sep 13, 2006. Check the license (California PSY13861, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gail Zwier
- Credential
- PH.D.
- Primary taxonomy
- Clinical Psychologist 103TC0700X
- License number
- PSY13861 CA
Self-reported in NPPES; status is on the state search - Practice location
- 162 Grove St Ste J, Bishop, CA 93514
- Phone
- (760) 873-6533
- Enumerated
- Sep 13, 2006
- Record last updated
- Jun 15, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (760) 873-3277
- Medicare enrollment
- Enrolled (PECOS I20220112001597); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest clinical psychologist records → All 12,647 in California → Look up another NPI →
Also registered at 162 Grove St Ste J
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Pamela BlackwellMarriage & Family Therapist1740376532
- Robert BowmanMarriage & Family Therapist1164509790
Verify Gail Zwier in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PSY13861Check 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
- Toiyabe Indian Health Project IncBishop, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Gail Zwier among 12,647 clinical psychologist records in California
Gail Zwier, PH.D. is one of 12,647 clinical psychologist records with a practice address in California. 9% 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 1% of them.
- NPI issued2006 · 1% of these records are older, 80% newer
- In a Medicare fileYes · 9% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated1985 · median 2006 among the 2,424 with a school on file
- Record last updated2012 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TC0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Psychologist providers in California
There are 12,647 clinical psychologist records in California.
All 12,647 in California → Every provider in Bishop → Clinical Psychologist nationwide →
The 8 clinical psychologist records with the nearest ZIP codes
- Janelle ClarkBishop, CA 935141750409249
- Nancyann Cervantes, PHDEdwards Afb, CA 935241528154218
- Jordan Simonson, PHDEdwards Afb, CA 935241326330663
- Dianne Defreece, PSY.D.Lancaster, CA 935341255431821
- Rhonda Digiovanni, PSYD, LMFTLancaster, CA 935341831344720
- Roger Girion, PH.DLancaster, CA 935341386912806
- Maria Holtrop, PSYDLancaster, CA 935341316170004
- Gunilla Karlsson, PH.D.Lancaster, CA 935341083647242
Common questions
What is Gail Zwier, PH.D.'s NPI number?
Gail Zwier, PH.D.'s National Provider Identifier (NPI) is 1548365869, issued on Sep 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Gail Zwier, PH.D. located?
The NPPES record lists a practice address at 162 Grove St Ste J, Bishop, CA, 93514. Phone: (760) 873-6533. Providers update this record themselves, so call before visiting.
How can I verify Gail Zwier, PH.D.'s license?
NPPES lists California license number PSY13861, 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.