NPPES file of Aug 9, 2026

Holly Ann Olalia, DNP, PMHNP

Psychiatric/Mental Health Nurse Practitioner · Aliso Viejo, CA

Holly Ann Olalia, DNP, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in Aliso Viejo, California, and NPI 1538751409, issued on Feb 10, 2021. Check the license (California 95026465, 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
1538751409
Name
Holly Ann Olalia
Credential
DNP, PMHNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License numbers
95026465 CA
95153559 CA
Self-reported in NPPES; status is on the state search
Practice location
24552 Pacific Park Dr, Aliso Viejo, CA 92656
Phone
(949) 647-4618
Enumerated
Feb 10, 2021
Record last updated
Mar 12, 2024
Medicare enrollment
Enrolled (PECOS I20240403002610); accepts Medicare assignment
Medical or professional school
Loma Linda University School Of Medicine, 2023
Telehealth
Offers telehealth (CMS)
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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Also registered at 24552 Pacific Park Dr

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

  1. Yen Anker, NPNurse Practitioner1104273309
  2. Christopher Cummins, LMFT, LCADC, ACSMarriage & Family Therapist1639415490
  3. Lilian Rose Gumban-Saldana, NPPsychiatric/Mental Health Nurse Practitioner1124993290
  4. Evaggelos Mitrevolis, MDAddiction Medicine (Preventive Medicine) Physician1154632990
  5. Laquicha Westervelt, FNP-C, PMHNP-BCFamily Nurse Practitioner1992166912
  6. Ashley Yusam, PA-CPhysician Assistant1275986077

Verify Holly Ann Olalia 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 95026465
    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. Thomas Health Services IncManhattan Beach, CA

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

Holly Ann Olalia among 4,226 psychiatric/mental health nurse practitioner records in California

Holly Ann Olalia, DNP, PMHNP is one of 4,226 psychiatric/mental health nurse practitioner records with a practice address in California. 62% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 46% of them.

  • NPI issued2021 · 46% of these records are older, 46% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated2023 · median 2021 among the 1,965 with a school on file
  • Record last updated2024 · 16% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatric/Mental Health Nurse Practitioner providers in California

There are 4,226 psychiatric/mental health nurse practitioner records in California.

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

  1. Nicholas Calderon, NPAliso Viejo, CA 926561952287831
  2. Andrea Carasquero, NPAliso Viejo, CA 926561912455122
  3. Addie Gonwa RamondaAliso Viejo, CA 926561437988946
  4. Lilian Rose Gumban-Saldana, NPAliso Viejo, CA 926561124993290
  5. Emily Huff, PMHNPLaguna Hills, CA 926531245183581
  6. Christine Kim, PMHNPLaguna Hills, CA 926531063912244
  7. Isaac Lee, NPLaguna Hills, CA 926531235868621
  8. Alan Ooka, APRN, BC, P-MHNPLaguna Hills, CA 926531114924230

Common questions

What is Holly Ann Olalia, DNP, PMHNP's NPI number?

Holly Ann Olalia, DNP, PMHNP's National Provider Identifier (NPI) is 1538751409, issued on Feb 10, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Holly Ann Olalia, DNP, PMHNP located?

The NPPES record lists a practice address at 24552 Pacific Park Dr, Aliso Viejo, CA, 92656. Phone: (949) 647-4618. Providers update this record themselves, so call before visiting.

How can I verify Holly Ann Olalia, DNP, PMHNP's license?

NPPES lists California license number 95026465, 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.