Michael Nash, NP
Psychiatric/Mental Health Nurse Practitioner · Irvine, CA
Michael Nash, NP is a psychiatric/mental health nurse practitioner with a practice address in Irvine, California, and NPI 1033561444, issued on Jul 9, 2016. Check the license (California 95004514, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Michael Nash
- Credential
- NP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License numbers
- 95004514 CA
303860 AZ
NUR-APRN-LIC-176318 MT
Self-reported in NPPES; status is on the state search - Practice location
- 19712 Macarthur Blvd Ste 110, Irvine, CA 92612
- Phone
- (888) 508-5006
- Enumerated
- Jul 9, 2016
- Record last updated
- Jul 28, 2026
- Fax
- (714) 923-7884
- Medicare enrollment
- Enrolled (PECOS I20160908000140); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 4,226 in California → Look up another NPI →
Also registered at 19712 Macarthur Blvd Ste 110
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nader AlbadawiClinical Psychologist1730561341
- Jamisyn Atlas, MA, LMFTMarriage & Family Therapist1962289165
- Shahrzad Azarafza, LCSWMental Health Counselor1215381538
- Christine Barron, LMFTMarriage & Family Therapist1205400538
- Carina Biddle, M.S., LMFTMarriage & Family Therapist1760933873
- Jeskeith Brar, NPPsychiatric/Mental Health Nurse Practitioner1033760863
Verify Michael Nash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95004514Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
213 Medicare Part D claims for 124 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 7% of claims. 39 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen21 claims
- Tramadol Hcl16 claims
- Amoxicillin-Clavulanate Potass15 claims
- Prednisone11 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 94.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Emergency Physicians OF Orange CountyNewport Beach, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Nash among 4,226 psychiatric/mental health nurse practitioner records in California
Michael Nash, NP 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 2016, is newer than 23% of them.
- NPI issued2016 · 23% of these records are older, 73% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileYes · 46% of these records are
- Graduated2016 · median 2021 among the 1,965 with a school on file
- Record last updated2026 · 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).
82 psychiatric/mental health nurse practitioner records list a practice address in Irvine
They are 82 of the 7,778 NPPES records with a practice address in Irvine, and 4,226 psychiatric/mental health nurse practitioner records in California.
All 4,226 in California → Every provider in Irvine → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Diane Ackroyd, PMPNP-BCIrvine, CA 926121083655815
- Dema BitarIrvine, CA 926121407623317
- Jeskeith Brar, NPIrvine, CA 926121033760863
- Alexandra Cao, PMHNP-BCIrvine, CA 926121396562856
- Sandra Castillo, PMHNP-BCIrvine, CA 926121376360438
- Julie ChuIrvine, CA 926121528842127
- Rachel Dinkler, NPIrvine, CA 926121205696234
- Simone Kaufman, NPIrvine, CA 926121477829612
Common questions
What is Michael Nash, NP's NPI number?
Michael Nash, NP's National Provider Identifier (NPI) is 1033561444, issued on Jul 9, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Michael Nash, NP located?
The NPPES record lists a practice address at 19712 Macarthur Blvd Ste 110, Irvine, CA, 92612. Phone: (888) 508-5006. Providers update this record themselves, so call before visiting.
How can I verify Michael Nash, NP's license?
NPPES lists California license number 95004514, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Michael Nash, NP prescribe under Medicare Part D?
In 2024, Michael Nash, NP had 213 Medicare Part D claims for 124 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. Part D covers Medicare prescriptions only.
What is Michael Nash, NP's MIPS final score?
The 2023 MIPS final score is 94.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.