Ashwin Kashyap, M.D.
Hematology & Oncology Physician · Thousand Oaks, CA
Ashwin Kashyap, M.D. is a hematology & oncology physician with a practice address in Thousand Oaks, California, and NPI 1861495475, issued on May 27, 2005. Check the license (California A52406, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ashwin Kashyap
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A52406 CA
Self-reported in NPPES; status is on the state search - Practice location
- 425 Haaland Dr Ste 101, Thousand Oaks, CA 91361
- Phone
- (805) 496-2949
- Enumerated
- May 27, 2005
- Record last updated
- Mar 23, 2022
- Fax
- (805) 204-4076
- Medicaid IDs
- 1417145673 CA
1861495475 CA - Medicare enrollment
- Enrolled (PECOS I20050201000799); 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 425 Haaland Dr Ste 101
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bahareh Bahadini, MDHematology & Oncology Physician1295734614
- Bassam Ghanem, MDHematology & Oncology Physician1528167830
- Sabrina Hardy, MDHematology & Oncology Physician1821595638
- Hasmik Mkhitaryan, PHARMDOncology Pharmacist1720958176
- Stella Ortiz, MSN,RN,FNP,OCNNurse Practitioner1326557885
- Nikita Shah, MDSurgical Oncology Physician1073889002
Verify Ashwin Kashyap in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A52406Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
436 Medicare Part D claims for 99 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.
Most prescribed
- Eliquis40 claims
- Tamoxifen Citrate35 claims
- Ondansetron Hcl32 claims
- Anastrozole26 claims
- Hydroxyurea24 claims
- Xtandi20 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): 99.1 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).
Industry payments in 2024: $150.74
6 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer 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.
Bills Medicare through one group practice
- City OF Hope Medical FoundationThousand Oaks, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ashwin Kashyap among 1,583 hematology & oncology physician records in California
Ashwin Kashyap, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 92% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated1985 · median 2003 among the 1,124 with a school on file
- Record last updated2022 · 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 Thousand Oaks → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Sidharth Anand, M.D.Westlake Village, CA 913611336453810
- Shahryar Ashouri, M.D.Westlake Village, CA 913611609946169
- Bahareh Bahadini, MDThousand Oaks, CA 913611295734614
- Michael Cerniglia, MDWestlake Village, CA 913611386106284
- Lauren Eisenbud, MDWestlake Village, CA 913611245650563
- Bassam Ghanem, MDThousand Oaks, CA 913611528167830
- Rodolfo Gutierrez, MDWestlake Village, CA 913611184920944
- Sabrina Hardy, MDThousand Oaks, CA 913611821595638
Common questions
What is Ashwin Kashyap, M.D.'s NPI number?
Ashwin Kashyap, M.D.'s National Provider Identifier (NPI) is 1861495475, issued on May 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Ashwin Kashyap, M.D. located?
The NPPES record lists a practice address at 425 Haaland Dr Ste 101, Thousand Oaks, CA, 91361. Phone: (805) 496-2949. Providers update this record themselves, so call before visiting.
How can I verify Ashwin Kashyap, M.D.'s license?
NPPES lists California license number A52406, 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 Ashwin Kashyap, M.D. prescribe under Medicare Part D?
In 2024, Ashwin Kashyap, M.D. had 436 Medicare Part D claims for 99 beneficiaries; the average among hematology & oncology physician prescribers was 877. Part D covers Medicare prescriptions only.
What is Ashwin Kashyap, M.D.'s MIPS final score?
The 2023 MIPS final score is 99.1 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.