Isabella Yumi Chai, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner · Pomona, CA
Isabella Yumi Chai, PMHNP-BC is a psychiatric/mental health nurse practitioner with a practice address in Pomona, California, and NPI 1336792209, issued on Jul 19, 2019. Check the license (California 95011968, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Isabella Yumi Chai
- Credential
- PMHNP-BC
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 95011968 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2008 N Garey Ave, Pomona, CA 91767
- Phone
- (909) 623-6131
- Enumerated
- Jul 19, 2019
- Record last updated
- Jan 6, 2026
- Fax
- (909) 865-9281
- Medicare enrollment
- Enrolled (PECOS I20191004002883); 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 2008 N Garey Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Efelomo AbrahamMental Health Counselor1811390586
- Lourdes Abrego, LPTLicensed Psychiatric Technician1831594001
- Briana Acevedo, BSWDay Training/Habilitation Specialist1326680521
- Shawna AcostaLicensed Psychiatric Technician1477118990
- Nyssa Adackapara, MDPsychiatry Physician1689093494
- Luz AguayoClinical Social Worker1649880683
Verify Isabella Yumi Chai in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 95011968Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $33.73
2 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Tri-City Mental Health AuthorityPomona, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isabella Yumi Chai among 4,226 psychiatric/mental health nurse practitioner records in California
Isabella Yumi Chai, PMHNP-BC 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 2019, is newer than 35% of them.
- NPI issued2019 · 35% of these records are older, 59% newer
- In a Medicare fileYes · 62% of these records are
- In the CMS Doctors and Clinicians fileYes · 46% of these records are
- Graduated2019 · 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).
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 Pomona → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Gretchen Adams, REGISTERED NURSEPomona, CA 917671689026692
- Shana Celeste, RNPomona, CA 917671659026672
- Lisa Debrier, PSYCH NPPomona, CA 917671265807762
- Zhaofei Liu, PMHNPPomona, CA 917671922969955
- Danielruben Miranda, NPPomona, CA 917671619629367
- Matthew LuPomona, CA 917661043148331
- Chanda RichardsonPomona, CA 917661942181029
- Daniel Cho, PMHNPDiamond Bar, CA 917651659218626
Common questions
What is Isabella Yumi Chai, PMHNP-BC's NPI number?
Isabella Yumi Chai, PMHNP-BC's National Provider Identifier (NPI) is 1336792209, issued on Jul 19, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Isabella Yumi Chai, PMHNP-BC located?
The NPPES record lists a practice address at 2008 N Garey Ave, Pomona, CA, 91767. Phone: (909) 623-6131. Providers update this record themselves, so call before visiting.
How can I verify Isabella Yumi Chai, PMHNP-BC's license?
NPPES lists California license number 95011968, 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.