NPPES file of Aug 9, 2026

Cassandra Blaylock, NP

Hematology & Oncology Physician · Santa Monica, CA

Cassandra Blaylock, NP is a hematology & oncology physician with a practice address in Santa Monica, California, and NPI 1588043400, issued on May 26, 2015. Check the license (California 95003118, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1588043400
Name
Cassandra Blaylock
Credential
NP
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
95003118 CA
Self-reported in NPPES; status is on the state search
Practice location
1250 16TH St, Santa Monica, CA 90404
Phone
(424) 259-9457
Enumerated
May 26, 2015
Record last updated
Oct 1, 2025
Fax
(424) 259-6823
Medicare enrollment
Enrolled (PECOS I20250923004115); may accept Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 1250 16TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Melanie Altamirano-CariagaNurse Practitioner1588060198
  2. Miguel Arellano, NPNurse Practitioner1295460806
  3. Jason Bahk, M.D.Hospitalist Physician1245573187
  4. Christopher BelfourEmergency Medicine Physician1518259837
  5. Umesh Bhagia, MDSurgery Physician1568468528
  6. Bree Blumstein, N.P.Vascular & Interventional Radiology Physician1346600525

Verify Cassandra Blaylock in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 95003118    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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96% fewer Medicare Part D claims than the average hematology & oncology physician in 2024

38 Medicare Part D claims for 18 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D.

  1. Cassandra Blaylock38
  2. Specialty average877

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.

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 →

Other hematology & oncology physician records in California

  1. Mark Abate, M.D.Santa Barbara, CA1588778674
  2. Iman Abdalla, MDLos Angeles, CA1730248311
  3. Haifaa Abdulhaq, MDFresno, CA1508024647
  4. Nihal Abdulla, MDLos Alamitos, CA1750585345
  5. Mehrad Abedi, M.D.Sacramento, CA1467459222
  6. Oyewale Abidoye, M.D.La Jolla, CA1790841815
  7. Mohammed Abu Zaanona, MDSanta Barbara, CA1922591197
  8. Mohamad Adada, M.D., PHDRoseville, CA1528590734
  9. Jesse Adams, MDSacramento, CA1851479554
  10. Thompson Adams, MDSanta Monica, CA1407880891

Common questions

What is Cassandra Blaylock, NP's NPI number?

Cassandra Blaylock, NP's National Provider Identifier (NPI) is 1588043400, issued on May 26, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Cassandra Blaylock, NP located?

The NPPES record lists a practice address at 1250 16TH St, Santa Monica, CA, 90404. Phone: (424) 259-9457. Providers update this record themselves, so call before visiting.

How can I verify Cassandra Blaylock, NP's license?

NPPES lists California license number 95003118, 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 Cassandra Blaylock, NP prescribe under Medicare Part D?

In 2024, Cassandra Blaylock, NP had 38 Medicare Part D claims for 18 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.