NPPES file of Aug 9, 2026

Haidy Denise Willis, PMHNP

Adult Psychiatric/Mental Health Registered Nurse · Atascadero, CA

Haidy Denise Willis, PMHNP is an adult psychiatric/mental health registered nurse with a practice address in Atascadero, California, and NPI 1023395142, issued on Nov 3, 2011. Check the license (California NP 22719, 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 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1023395142
Name
Haidy Denise Willis
Credential
PMHNP
Primary taxonomy
Adult Psychiatric/Mental Health Registered Nurse 163WP0809X
License number
NP 22719 CA
Self-reported in NPPES; status is on the state search
Practice location
10333 EL Camino Real, Atascadero, CA 93422
Phone
(805) 468-2000
Enumerated
Nov 3, 2011
Record last updated
Jul 10, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(805) 468-6011
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 10333 EL Camino Real

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

  1. Joseph Abrahamson, MDForensic Psychiatry Physician1750309423
  2. Ajibade Adeladan, MDPsychiatry Physician1013178763
  3. Henry Ahlstrom, PH.D.Clinical Psychologist1619945870
  4. Moghees AhmedPsychiatry Physician1124333125
  5. Hossein Akhavan, M.D.Internal Medicine Physician1871779942
  6. Paula Aloi, PSYDClinical Psychologist1306134630

Verify Haidy Denise Willis 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 NP 22719
    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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91% fewer Medicare Part D claims than the average adult psychiatric/mental health registered nurse in 2024

102 Medicare Part D claims for 14 beneficiaries, against an average of 1,135 among the 111 providers of this specialty who prescribed in Part D.

  1. Haidy Willis102
  2. Specialty average1,135

Most prescribed

  1. Alprazolam16 claims
  2. Trazodone Hcl16 claims
  3. Escitalopram Oxalate12 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Haidy Denise Willis among 1,135 adult psychiatric/mental health registered nurse records in California

Haidy Denise Willis, PMHNP is one of 1,135 adult psychiatric/mental health registered nurse records with a practice address in California. 2% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 27% of them.

  • NPI issued2011 · 27% of these records are older, 72% newer
  • In a Medicare fileYes · 2% of these records are
  • In the CMS Doctors and Clinicians fileNo · under 1% of these records are
  • Record last updated2013 · 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 163WP0809X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Psychiatric/Mental Health Registered Nurse providers in California

There are 1,135 adult psychiatric/mental health registered nurse records in California.

The 8 adult psychiatric/mental health registered nurse records with the nearest ZIP codes

  1. Sunday AremuAtascadero, CA 934221457224818
  2. Bessie Burks, REGISTERED NURSELompoc, CA 934361245569300
  3. Julie Reyes, RNLompoc, CA 934361225344104
  4. Vivian Vorce, RNLompoc, CA 934361033992847
  5. Janet Amanzio, RNSan Luis Obispo, CA 934011790843803
  6. Trena Cannon, RNSan Luis Obispo, CA 934011205152675
  7. Sandra Baum, RNSanta Maria, CA 934551770657801
  8. Jessica Torres, RNSanta Maria, CA 934551831348895

Common questions

What is Haidy Denise Willis, PMHNP's NPI number?

Haidy Denise Willis, PMHNP's National Provider Identifier (NPI) is 1023395142, issued on Nov 3, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Haidy Denise Willis, PMHNP located?

The NPPES record lists a practice address at 10333 EL Camino Real, Atascadero, CA, 93422. Phone: (805) 468-2000. Providers update this record themselves, so call before visiting.

How can I verify Haidy Denise Willis, PMHNP's license?

NPPES lists California license number NP 22719, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Haidy Denise Willis, PMHNP prescribe under Medicare Part D?

In 2024, Haidy Denise Willis, PMHNP had 102 Medicare Part D claims for 14 beneficiaries; the average among adult psychiatric/mental health registered nurse prescribers was 1,135. Part D covers Medicare prescriptions 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.