Iulia Giuroiu, M.D.
Medical Oncology Physician · Mountain View, CA
Iulia Giuroiu, M.D. is a medical oncology physician with a practice address in Mountain View, California, and NPI 1417247842, issued on Apr 19, 2011. Check the license (California A155292, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Iulia Giuroiu
- Credential
- M.D.
- Primary taxonomy
- Medical Oncology Physician 207RX0202X
- License number
- A155292 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2505 Hospital Dr Ste 1, Mountain View, CA 94040
- Phone
- (650) 988-8338
- Enumerated
- Apr 19, 2011
- Record last updated
- Sep 5, 2024
- Fax
- (650) 962-4594
- Medicare enrollment
- Enrolled (PECOS I20180926002406); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest medical oncology physician records → All 447 in California → Look up another NPI →
Verify Iulia Giuroiu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A155292Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% fewer Medicare Part D claims than the average medical oncology physician in 2024
462 Medicare Part D claims for 91 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 23 claims were for opioids.
Most prescribed
- Anastrozole50 claims
- Prednisone42 claims
- Abiraterone Acetate39 claims
- Tamoxifen Citrate31 claims
- Eliquis30 claims
- Prochlorperazine Maleate23 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
- EL Camino Health Medical Network LLCLos Gatos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Iulia Giuroiu among 447 medical oncology physician records in California
Iulia Giuroiu, M.D. is one of 447 medical oncology physician records with a practice address in California. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 67% of them.
- NPI issued2011 · 67% of these records are older, 28% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2011 · median 2004 among the 312 with a school on file
- Record last updated2024 · 41% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Medical Oncology Physician providers in California
There are 447 medical oncology physician records in California.
All 447 in California → Every provider in Mountain View → Medical Oncology Physician nationwide →
The 8 medical oncology physician records with the nearest ZIP codes
- Shiva SinghalMountain View, CA 940401942456389
- Rosendo So-Rosillo, MDMountain View, CA 940401407889827
- Shruti Sheth, M.D., MSC.Menlo Park, CA 940251831283167
- Richard Lenon, M.D.Woodside, CA 940621548575582
- Kenneth Yamamoto, MDDaly City, CA 940151467545368
- John Gordan, M.D., PH.D.San Bruno, CA 940661487881066
- Mark Benyunes, M.D.South San Francisco, CA 940801538418298
- Melissa Brammer, M.D., M.P.H.South San Francisco, CA 940801558649194
Common questions
What is Iulia Giuroiu, M.D.'s NPI number?
Iulia Giuroiu, M.D.'s National Provider Identifier (NPI) is 1417247842, issued on Apr 19, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Iulia Giuroiu, M.D. located?
The NPPES record lists a practice address at 2505 Hospital Dr Ste 1, Mountain View, CA, 94040. Phone: (650) 988-8338. Providers update this record themselves, so call before visiting.
How can I verify Iulia Giuroiu, M.D.'s license?
NPPES lists California license number A155292, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Iulia Giuroiu, M.D. prescribe under Medicare Part D?
In 2024, Iulia Giuroiu, M.D. had 462 Medicare Part D claims for 91 beneficiaries; the average among medical oncology physician prescribers was 703. 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.