NPPES file of Aug 9, 2026

Michael A. O'Connor, PCNS

Psychiatric/Mental Health Nurse Practitioner · Santa Cruz, CA

Michael A. O'Connor, PCNS is a psychiatric/mental health nurse practitioner with a practice address in Santa Cruz, California, and NPI 1881736338, issued on Feb 13, 2007. Check the license (California NP95007718, 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
1881736338
Name
Michael A. O'Connor
Credential
PCNS
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License numbers
NP95007718 CA
RN230451 MA
Self-reported in NPPES; status is on the state search
Practice location
1080 Emeline Ave, Santa Cruz, CA 95060
Phone
(831) 454-4100
Enumerated
Feb 13, 2007
Record last updated
Sep 26, 2023
Medicare enrollment
Enrolled (PECOS I20180830001930); accepts Medicare assignment
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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8 nearest psychiatric/mental health nurse practitioner records → All 4,226 in California → Look up another NPI →

Also registered at 1080 Emeline Ave

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

  1. Aasha AbbottClinical Social Worker1609311638
  2. Dimitri Bacos, M.D.Psychiatry Physician1760712814
  3. Jennifer BaileyMarriage & Family Therapist1376616326
  4. Blythe Ballaao, PMHNPPsychiatric/Mental Health Nurse Practitioner1669975777
  5. Paul Berman, M.D.Orthopaedic Surgery Physician1154301836
  6. Randi Bittner, LCSWClinical Social Worker1043733868

Verify Michael A. O'Connor 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 NP95007718    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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29% more Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

1,168 Medicare Part D claims for 82 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Michael O'Connor1,168
  2. Specialty average906

Most prescribed

  1. Gabapentin96 claims
  2. Trazodone Hcl82 claims
  3. Aripiprazole75 claims
  4. Quetiapine Fumarate72 claims
  5. Duloxetine Hcl66 claims
  6. Bupropion Hcl Sr55 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.

Bills Medicare through one group practice

  1. County OF Santa CruzSanta Cruz, CA

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

Michael A. O'Connor among 4,226 psychiatric/mental health nurse practitioner records in California

Michael A. O'Connor, PCNS 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 2007, is newer than 4% of them.

  • NPI issued2007 · 4% of these records are older, 93% newer
  • In a Medicare fileYes · 62% of these records are
  • In the CMS Doctors and Clinicians fileYes · 46% of these records are
  • Graduated2009 · median 2021 among the 1,965 with a school on file
  • Record last updated2023 · 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.

All 4,226 in California → Every provider in Santa Cruz → Psychiatric/Mental Health Nurse Practitioner nationwide →

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

  1. Blythe Ballaao, PMHNPSanta Cruz, CA 950601669975777
  2. Monika Delyser, PMHNPSanta Cruz, CA 950601316675424
  3. Stacey Flores, NPSanta Cruz, CA 950601063294668
  4. Cameron Harskamp, PMHNP-BCSanta Cruz, CA 950601841966280
  5. Amelia Jester, PMHNPSanta Cruz, CA 950601689344483
  6. Jaime Jimenez, PMHNP-BCSanta Cruz, CA 950601710241906
  7. Kathryn Johnson, RN,NPSanta Cruz, CA 950601811013469
  8. Kelsey Kloberdanz, RN, MSN, PMHNP-BCSanta Cruz, CA 950601235672502

Common questions

What is Michael A. O'Connor, PCNS's NPI number?

Michael A. O'Connor, PCNS's National Provider Identifier (NPI) is 1881736338, issued on Feb 13, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Michael A. O'Connor, PCNS located?

The NPPES record lists a practice address at 1080 Emeline Ave, Santa Cruz, CA, 95060. Phone: (831) 454-4100. Providers update this record themselves, so call before visiting.

How can I verify Michael A. O'Connor, PCNS's license?

NPPES lists California license number NP95007718, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.

How much does Michael A. O'Connor, PCNS prescribe under Medicare Part D?

In 2024, Michael A. O'Connor, PCNS had 1,168 Medicare Part D claims for 82 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.

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.