Thais Siewert, PMHNP
Psychiatric/Mental Health Nurse Practitioner · La Jolla, CA
Thais Siewert, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in La Jolla, California, and NPI 1194348318, issued on May 21, 2020. Check the license (California 95014585, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thais Siewert
- Credential
- PMHNP
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 95014585 CA
Self-reported in NPPES; status is on the state search - Practice location
- 888 Prospect St Ste 200, La Jolla, CA 92037
- Phone
- (415) 849-2466
- Enumerated
- May 21, 2020
- Record last updated
- Nov 26, 2025
- Fax
- (415) 376-4529
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 4,226 in California → Look up another NPI →
Also registered at 888 Prospect St Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Thais Siewert in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95014585Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 80.6 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).
Thais Siewert among 4,226 psychiatric/mental health nurse practitioner records in California
Thais Siewert, 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 2020, is newer than 41% of them.
- NPI issued2020 · 41% of these records are older, 54% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileNo · 46% of these records are
- Record last updated2025 · 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 La Jolla → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Kristoffer Ancho, PMHNP-BCLa Jolla, CA 920371700199205
- Simone Borghei, NPLa Jolla, CA 920371871159673
- Lauren Chow, MSN, PMHNP-BCLa Jolla, CA 920371497413603
- Grace Collins, PMHNP-BCLa Jolla, CA 920371154994952
- Romilynn Danko, DNPLa Jolla, CA 920371205239134
- Megan Gotiangco, PMHNPLa Jolla, CA 920371366092215
- Gracie Hensinger, PMHNP-BCLa Jolla, CA 920371669264735
- Kora Juckem, NPLa Jolla, CA 920371356882286
Common questions
What is Thais Siewert, PMHNP's NPI number?
Thais Siewert, PMHNP's National Provider Identifier (NPI) is 1194348318, issued on May 21, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Thais Siewert, PMHNP located?
The NPPES record lists a practice address at 888 Prospect St Ste 200, La Jolla, CA, 92037. Phone: (415) 849-2466. Providers update this record themselves, so call before visiting.
How can I verify Thais Siewert, PMHNP's license?
NPPES lists California license number 95014585, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
What is Thais Siewert, PMHNP's MIPS final score?
The 2023 MIPS final score is 80.6 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.