Sean Adam Fischer, M.D.
Hematology & Oncology Physician · Santa Monica, CA
Sean Adam Fischer, M.D. is a hematology & oncology physician with a practice address in Santa Monica, California, and NPI 1801842943, issued on May 26, 2006. Check the license (California A95048, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sean Adam Fischer
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A95048 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2001 Santa Monica Blvd Ste 560W, Santa Monica, CA 90404
- Phone
- (310) 453-5654
- Enumerated
- May 26, 2006
- Record last updated
- Jan 16, 2024
- Fax
- (310) 453-6885
- Medicare enrollment
- Enrolled (PECOS I20060809000233); 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 2001 Santa Monica Blvd Ste 560W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Brian Cary, PAPhysician Assistant1376733790
- Timothy Kristedja, MDHematology & Oncology Physician1881897494
- Laura Larose, RN-BC, MSN, OCNNurse Practitioner1538687462
- Carol Nishikubo, M.D.Hematology & Oncology Physician1023083888
- Vivek ShahHematology (Internal Medicine) Physician1013570563
- Brian Wolf, MDHematology & Oncology Physician1730640772
Verify Sean Adam Fischer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A95048Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% more Medicare Part D claims than the average hematology & oncology physician in 2024
1,715 Medicare Part D claims for 282 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 31% of claims. 89 claims were for opioids.
Most prescribed
- Eliquis165 claims
- Acyclovir80 claims
- Prochlorperazine Maleate65 claims
- Hydroxyurea64 claims
- Ondansetron Hcl52 claims
- Sulfamethoxazole-Trimethoprim52 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.
Industry payments in 2024: $708.82
4 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. 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
- Providence Saint Johns Medical FoundationSanta Monica, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Sean Adam Fischer among 1,583 hematology & oncology physician records in California
Sean Adam Fischer, 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 2006, is newer than 8% of them.
- NPI issued2006 · 8% of these records are older, 54% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2000 · median 2003 among the 1,124 with a school on file
- Record last updated2024 · 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 Santa Monica → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Thompson Adams, MDSanta Monica, CA 904041407880891
- Aditya Bardia, MDSanta Monica, CA 904041639210107
- Peter Boasberg, MDSanta Monica, CA 904041417982331
- Richard Finn, MDSanta Monica, CA 904041811912074
- Omid Hamid, M.D.Santa Monica, CA 904041215966775
- Kathryn Henick, M.D.Santa Monica, CA 904041912972779
- Silvana Martino, D.O.Santa Monica, CA 904041073626362
- Carol Nishikubo, M.D.Santa Monica, CA 904041023083888
Common questions
What is Sean Adam Fischer, M.D.'s NPI number?
Sean Adam Fischer, M.D.'s National Provider Identifier (NPI) is 1801842943, issued on May 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Sean Adam Fischer, M.D. located?
The NPPES record lists a practice address at 2001 Santa Monica Blvd Ste 560W, Santa Monica, CA, 90404. Phone: (310) 453-5654. Providers update this record themselves, so call before visiting.
How can I verify Sean Adam Fischer, M.D.'s license?
NPPES lists California license number A95048, 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 Sean Adam Fischer, M.D. prescribe under Medicare Part D?
In 2024, Sean Adam Fischer, M.D. had 1,715 Medicare Part D claims for 282 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.