Ying Cao, MD, PH.D
Hematology & Oncology Physician · Los Gatos, CA
Ying Cao, MD, PH.D is a hematology & oncology physician with a practice address in Los Gatos, California, and NPI 1326209438, issued on Jun 20, 2008. Check the license (California A123342, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ying Cao
- Credential
- MD, PH.D
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A123342 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15400 National Ave, Los Gatos, CA 95032
- Phone
- (408) 358-8444
- Enumerated
- Jun 20, 2008
- Record last updated
- Dec 2, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (408) 358-4022
- Medicaid ID
- 296448801 TX
- Medicare enrollment
- Enrolled (PECOS I20140710002093); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 15400 National Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rakesh Patel, MDRadiation Oncology Physician1992768519
- Gordon Wong, M.D.Radiation Oncology Physician1235172446
Verify Ying Cao in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A123342Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.3 times the Medicare Part D claims of the average hematology & oncology physician in 2024
2,025 Medicare Part D claims for 355 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 69 claims were for opioids.
Most prescribed
- Anastrozole346 claims
- Prochlorperazine Maleate165 claims
- Acyclovir121 claims
- Hydroxyurea92 claims
- Tamoxifen Citrate81 claims
- Ondansetron Hcl80 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
- Sutter Bay Medical FoundationSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ying Cao among 1,583 hematology & oncology physician records in California
Ying Cao, MD, PH.D is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 60% of them.
- NPI issued2008 · 60% of these records are older, 34% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1999 · median 2003 among the 1,124 with a school on file
- Record last updated2013 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Los Gatos → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Raina Ferzoco, M.D.Los Gatos, CA 950321811213564
- Simranjit Sekhon, M.D.Los Gatos, CA 950321558632505
- Amir Tabatabai, M.D.Los Gatos, CA 950321871592154
- Carol Mei, M.D.Hollister, CA 950231528041720
- Lynne Bui, M.D.Gilroy, CA 950201114169323
- Ronald Yanagihara, M.D.Gilroy, CA 950201366478240
- Samina Ahmed, MDSanta Clara, CA 950511114180197
- Jeffrey Bien, M.D.Santa Clara, CA 950511487040911
Common questions
What is Ying Cao, MD, PH.D's NPI number?
Ying Cao, MD, PH.D's National Provider Identifier (NPI) is 1326209438, issued on Jun 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Ying Cao, MD, PH.D located?
The NPPES record lists a practice address at 15400 National Ave, Los Gatos, CA, 95032. Phone: (408) 358-8444. Providers update this record themselves, so call before visiting.
How can I verify Ying Cao, MD, PH.D's license?
NPPES lists California license number A123342, 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 Ying Cao, MD, PH.D prescribe under Medicare Part D?
In 2024, Ying Cao, MD, PH.D had 2,025 Medicare Part D claims for 355 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.