NPPES file of Aug 9, 2026

Danielle Williams

Forensic Psychologist · Napa, CA

Danielle Williams is a forensic psychologist with a practice address in Napa, California, and NPI 1083304562, issued on May 9, 2023. Check the license (California PSY34046, 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
1083304562
Name
Danielle Williams
Primary taxonomy
Forensic Psychologist 103TF0200X
License number
PSY34046 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
May 9, 2023
Record last updated
May 9, 2023
Medicare enrollment
Enrolled (PECOS I20230914002076); 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 forensic psychologist records → All 257 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 Danielle Williams 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 PSY34046    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

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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).

Danielle Williams among 257 forensic psychologist records in California

Danielle Williams is one of 257 forensic psychologist records with a practice address in California. 4% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 95% of them.

  • NPI issued2023 · 95% of these records are older, 4% newer
  • In a Medicare fileYes · 4% of these records are
  • In the CMS Doctors and Clinicians fileYes · 5% of these records are
  • Graduated2011 · median 2007 among the 13 with a school on file
  • Record last updated2023 · 67% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 103TF0200X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Forensic Psychologist providers in California

There are 257 forensic psychologist records in California.

All 257 in California → Every provider in Napa → Forensic Psychologist nationwide →

The 8 forensic psychologist records with the nearest ZIP codes

  1. Trevor Mackin, PSY.D.Napa, CA 945581396125407
  2. Genevieve Monks, PSYDNapa, CA 945581770536351
  3. Anne Marie Paclebar Mahoney, PSY.DNapa, CA 945581487828810
  4. Elizabeth Shea, PSYDNapa, CA 945581609143940
  5. Karla Marchbanks Onofre, PSYDNapa, CA 945591457643868
  6. Clare Ames-Klein, PH.D.Lafayette, CA 945491538383831
  7. Penelope Russell, PHDDublin, CA 945681508061516
  8. Judith Linzer, PHDCastro Valley, CA 945461487879268

Common questions

What is Danielle Williams's NPI number?

Danielle Williams's National Provider Identifier (NPI) is 1083304562, issued on May 9, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Danielle Williams 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 Danielle Williams's license?

NPPES lists California license number PSY34046, 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.