Isabell I. Torres-Yaya, NP
Nurse Practitioner · Stanford, CA
Isabell I. Torres-Yaya, NP is a nurse practitioner with a practice address in Stanford, California, and NPI 1063740272, issued on Nov 28, 2009. Check the license (California 19556, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Isabell I. Torres-Yaya
- Credential
- NP
- Primary taxonomy
- Nurse Practitioner 363L00000X
- License number
- 19556 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Nov 28, 2009
- Record last updated
- Jun 3, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160527001658); accepts Medicare assignment
- 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 Isabell I. Torres-Yaya in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 19556Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
81% fewer Medicare Part D claims than the average nurse practitioner in 2024
215 Medicare Part D claims for 127 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Fluticasone Propionate34 claims
- Triamcinolone Acetonide25 claims
- Doxycycline Monohydrate13 claims
- Ibuprofen12 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
- Permanente Medical Group IncRedwood City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isabell I. Torres-Yaya among 8,223 nurse practitioner records in California
Isabell I. Torres-Yaya, 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 2009, is newer than 30% of them.
- NPI issued2009 · 30% of these records are older, 68% newer
- In a Medicare fileYes · 65% of these records are
- In the CMS Doctors and Clinicians fileYes · 42% of these records are
- Graduated2009 · median 2017 among the 3,425 with a school on file
- Record last updated2016 · 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
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- 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 Isabell I. Torres-Yaya, NP's NPI number?
Isabell I. Torres-Yaya, NP's National Provider Identifier (NPI) is 1063740272, issued on Nov 28, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Isabell I. Torres-Yaya, 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 Isabell I. Torres-Yaya, NP's license?
NPPES lists California license number 19556, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Isabell I. Torres-Yaya, NP prescribe under Medicare Part D?
In 2024, Isabell I. Torres-Yaya, NP had 215 Medicare Part D claims for 127 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.
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.