NPPES file of Aug 9, 2026

Cassius Marcellous Brown

Physician Assistant · Philadelphia, PA

Cassius Marcellous Brown is a physician assistant with a practice address in Philadelphia, Pennsylvania, and NPI 1013301506, issued on Mar 24, 2015. Check the license (Pennsylvania MA057515, as entered in NPPES) with the Pennsylvania board that licenses this profession; 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
1013301506
Name
Cassius Marcellous Brown
Primary taxonomy
Physician Assistant 363A00000X
License number
MA057515 PA
Self-reported in NPPES; status is on the state search
Practice location
5058 City Ave, Philadelphia, PA 19131
Phone
(215) 921-6369
Enumerated
Mar 24, 2015
Record last updated
Mar 24, 2015 (not updated in 11 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20150710002456); accepts Medicare assignment
Medical or professional school
Drexel University College Of Medicine, 2014
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 5058 City Ave

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

  1. Yun ChiuMedical Physician Assistant1699157156
  2. Jason Dillinger, PA-CMedical Physician Assistant1386060549
  3. Mitchell White, PA-CMedical Physician Assistant1801208939

Verify Cassius Marcellous Brown in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license MA057515
    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
Find the Pennsylvania license search

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96% fewer Medicare Part D claims than the average physician assistant in 2024

30 Medicare Part D claims for 13 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Cassius Brown30
  2. Specialty average830

Most prescribed

  1. Meloxicam24 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

  1. Kaiser Foundation Health Plan OF The Mid Atlantic States, IncLargo, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

955 physician assistant records list a practice address in Philadelphia

They are 955 of the 42,849 NPPES records with a practice address in Philadelphia, and 8,020 physician assistant records in Pennsylvania.

Other physician assistant records in Pennsylvania

  1. Matthew AbadLansdowne, PA1720113350
  2. Ariane Abadi, PA-CPhiladelphia, PA1619641685
  3. Rama Abbireddy, PABethlehem, PA1912887555
  4. Marianne Abdalah, PASewickley, PA1346088473
  5. Donia Abdalla, MMSC, PA-CHarrisburg, PA1164376851
  6. Raneem Abdelaziz, PA-CQuakertown, PA1003764713
  7. Safiyya Abdul-Ghani, PAOaks, PA1689904161
  8. Lauren Abdul-Malak, PAAbington, PA1083196117
  9. Katherine Abel, PA-CSteelton, PA1972944437
  10. Mark Abel, PA-CSouth Abington Township, PA1710131610

Common questions

What is Cassius Marcellous Brown's NPI number?

Cassius Marcellous Brown's National Provider Identifier (NPI) is 1013301506, issued on Mar 24, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Cassius Marcellous Brown located?

The NPPES record lists a practice address at 5058 City Ave, Philadelphia, PA, 19131. Phone: (215) 921-6369. Providers update this record themselves, so call before visiting.

How can I verify Cassius Marcellous Brown's license?

NPPES lists Pennsylvania license number MA057515, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Cassius Marcellous Brown prescribe under Medicare Part D?

In 2024, Cassius Marcellous Brown had 30 Medicare Part D claims for 13 beneficiaries; the average among physician assistant prescribers was 830. 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.