NPPES file of Aug 9, 2026

Tanya S. Chase, PSY.D.

Psychologist · Napa, CA

Tanya S. Chase, PSY.D. is a psychologist with a practice address in Napa, California, and NPI 1154485506, issued on Dec 20, 2006. Check the license (California 35132, 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
1154485506
Name
Tanya S. Chase
Credential
PSY.D.
Primary taxonomy
Psychologist 103T00000X
License numbers
35132 CA
94020865 CA
C608111303 CA
RPS 2012698 CA
Self-reported in NPPES; status is on the state search
Practice location
2100 Napa Vallejo Hwy, Napa, CA 94558
Phone
(707) 253-5000
Enumerated
Dec 20, 2006
Record last updated
Aug 2, 2024
Fax
(707) 253-5097
Medicare enrollment
Enrolled (PECOS I20240917001241); 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 psychologist records → All 7,304 in California → Look up another NPI →

Also registered at 2100 Napa Vallejo Hwy

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

  1. Jack Aamot, PSY.D.Clinical Psychologist1770711210
  2. Jerry Abajian, M.D.Anesthesiology Physician1851336218
  3. Elizabeth Agbuya, O.D.Optometrist1104350651
  4. Mamuna Ahmad, M.D.Psychiatry Physician1124405162
  5. Ali Akhavan, MDInternal Medicine Physician1013943174
  6. Barbara Bachmeier, PSYDClinical Psychologist1902039829

Verify Tanya S. Chase 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 35132    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. Department OF State HospitalsNapa, CA

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

Tanya S. Chase among 7,304 psychologist records in California

Tanya S. Chase, PSY.D. is one of 7,304 psychologist records with a practice address in California. 6% 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, 82% newer
  • In a Medicare fileYes · 6% of these records are
  • In the CMS Doctors and Clinicians fileYes · 14% of these records are
  • Graduated2014 · median 2005 among the 1,058 with a school on file
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

63 psychologist records list a practice address in Napa

They are 63 of the 3,583 NPPES records with a practice address in Napa, and 7,304 psychologist records in California.

All 7,304 in California → Every provider in Napa → Psychologist nationwide →

The 8 psychologist records with the nearest ZIP codes

  1. Danielle Bryce, PSY.D.Napa, CA 945581245373372
  2. Janet Cain, PHDNapa, CA 945581548272404
  3. Megan Davania, PSYDNapa, CA 945581851534259
  4. Sandy Folker, PSYCH ASSISTANTNapa, CA 945581275783698
  5. Eric Gonzalez, PH.D.Napa, CA 945581083873798
  6. Omyda Hernandez, PHDNapa, CA 945581164677043
  7. Toby Lamb, PSYDNapa, CA 945581043404791
  8. Patrick O'Reilly, PHDNapa, CA 945581700054467

Common questions

What is Tanya S. Chase, PSY.D.'s NPI number?

Tanya S. Chase, PSY.D.'s National Provider Identifier (NPI) is 1154485506, issued on Dec 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tanya S. Chase, PSY.D. located?

The NPPES record lists a practice address at 2100 Napa Vallejo Hwy, Napa, CA, 94558. Phone: (707) 253-5000. Providers update this record themselves, so call before visiting.

How can I verify Tanya S. Chase, PSY.D.'s license?

NPPES lists California license number 35132, 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.