Mirella Barrera Nguyen, NP
Nurse Practitioner · Stanford, CA
Mirella Barrera Nguyen, NP is a nurse practitioner with a practice address in Stanford, California, and NPI 1992789028, issued on Dec 1, 2005. Check the license (California 17992, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Mirella Barrera Nguyen
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 17992 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Dec 1, 2005
- Record last updated
- Dec 31, 2025
- Medicare enrollment
- Enrolled (PECOS I20160606001211); accepts Medicare assignment
- Medical or professional school
- Perelman School Of Med At The University Of Pennsylvania, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nurse practitioner records → All 8,223 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mirella Barrera Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 17992Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average nurse practitioner in 2024
129 Medicare Part D claims for 97 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.
Most prescribed
- Amoxicillin-Clavulanate Potass18 claims
- Cephalexin11 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): 76.5 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).
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Mirella Barrera Nguyen among 8,223 nurse practitioner records in California
Mirella Barrera Nguyen, NP is one of 8,223 nurse practitioner records with a practice address in California. 65% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2003 · median 2017 among the 3,425 with a school on file
- Record last updated2025 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
572 nurse practitioner records list a practice address in Stanford
They are 572 of the 5,606 NPPES records with a practice address in Stanford, and 8,223 nurse practitioner records in California.
All 8,223 in California → Every provider in Stanford → Nurse Practitioner nationwide →
The 8 nurse practitioner records with the nearest ZIP codes
- Julie Anderson, N.P.Stanford, CA 943051346285160
- Karen Bayuk, N.P.Stanford, CA 943051639114069
- Debra BolandStanford, CA 943051477581668
- Nicole Boramanand, APRNStanford, CA 943051790768240
- Lizbeth Flores-Byrne, RN, NPStanford, CA 943051366496945
- Thea Hess, NPStanford, CA 943051124080502
- Miranda Kramer, RN, NPStanford, CA 943051821035122
- Kevin Letz, DNP, NPPalo Alto, CA 943051487617064
Common questions
What is Mirella Barrera Nguyen, NP's NPI number?
Mirella Barrera Nguyen, NP's National Provider Identifier (NPI) is 1992789028, issued on Dec 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mirella Barrera Nguyen, NP located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Mirella Barrera Nguyen, NP's license?
NPPES lists California license number 17992, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Mirella Barrera Nguyen, NP prescribe under Medicare Part D?
In 2024, Mirella Barrera Nguyen, NP had 129 Medicare Part D claims for 97 beneficiaries; the average among nurse practitioner prescribers was 1,109. Part D covers Medicare prescriptions only.
What is Mirella Barrera Nguyen, NP's MIPS final score?
The 2023 MIPS final score is 76.5 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.