Sandra Jeane Horning, M.D.
Hematology & Oncology Physician · Stanford, CA
Sandra Jeane Horning, M.D. is a hematology & oncology physician with a practice address in Stanford, California, and NPI 1578607669, issued on Feb 20, 2007. Check the license (California G037872, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sandra Jeane Horning
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- G037872 CA
Self-reported in NPPES; status is on the state search - Practice location
- Stanford Cancer Clinic, Stanford, CA 94305
- Phone
- (650) 723-7621
- Enumerated
- Feb 20, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (650) 725-9113
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Verify Sandra Jeane Horning in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G037872Check 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: $537,719.08
48 payments; by number, the most common kind was food and beverage; the largest payer was Gilead Sciences, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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.
Sandra Jeane Horning among 1,583 hematology & oncology physician records in California
Sandra Jeane Horning, M.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 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 40% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 71% of these records are
- Record last updated2007 · 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 Stanford → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Steven Artandi, M.D.Stanford, CA 943051548352909
- Linda Boxer, M.D.Stanford, CA 943051306938766
- Daniel Chen, MDStanford, CA 943051154457323
- Cheryl Cho-Phan, MDStanford, CA 943051508877929
- Gilbert Chu, MDStanford, CA 943051417083684
- George Fisher, MDStanford, CA 943051255446308
- Harold Keer, MDStanford, CA 943051124154398
- Ginna Laport, M.D.Stanford, CA 943051144370743
Common questions
What is Sandra Jeane Horning, M.D.'s NPI number?
Sandra Jeane Horning, M.D.'s National Provider Identifier (NPI) is 1578607669, issued on Feb 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Sandra Jeane Horning, M.D. located?
The NPPES record lists a practice address at Stanford Cancer Clinic, Stanford, CA, 94305. Phone: (650) 723-7621. Providers update this record themselves, so call before visiting.
How can I verify Sandra Jeane Horning, M.D.'s license?
NPPES lists California license number G037872, 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.
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.