Brian Casillas, MD
Emergency Medicine Physician · Goodyear, AZ
Brian Casillas, MD is an emergency medicine physician with a practice address in Goodyear, Arizona, and NPI 1215514310, issued on Mar 25, 2021. Check the license (Arizona 71780, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.
- Name
- Brian Casillas
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 71780 AZ
Self-reported in NPPES; status is on the state search - Practice location
- 13657 W Mcdowell RD Ste 220, Goodyear, AZ 85395
- Phone
- (623) 882-1500
- Enumerated
- Mar 25, 2021
- Record last updated
- Jul 2, 2024
- Medicare enrollment
- Enrolled (PECOS I20240703001870); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 1,494 in Arizona → Look up another NPI →
Also registered at 13657 W Mcdowell RD Ste 220
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Melissa Mallary, DOStudent in an Organized Health Care Education/Training Program1053114884
- William Mati, MDStudent in an Organized Health Care Education/Training Program1205684875
- Stephanie SperrazzaEmergency Medicine Physician1871243428
- Michael Wurzer, DOStudent in an Organized Health Care Education/Training Program1205681301
Verify Brian Casillas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersArizona Medical Board
Search for license 71780Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average emergency medicine physician in 2024
142 Medicare Part D claims for 99 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 18 claims were for opioids.
Most prescribed
- Ondansetron Hcl15 claims
- Cephalexin14 claims
- Oxycodone Hcl12 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 2 group practices
- Cep America- Arizona, PCMesa, AZ
- Emergency Group OF Arizona Professional CorporationPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Brian Casillas among 1,494 emergency medicine physician records in Arizona
Brian Casillas, MD is one of 1,494 emergency medicine physician records with a practice address in Arizona. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 84% of them.
- NPI issued2021 · 84% of these records are older, 11% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 55% of these records are
- Graduated2021 · median 2014 among the 828 with a school on file
- Record last updated2024 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
34 emergency medicine physician records list a practice address in Goodyear
They are 34 of the 1,619 NPPES records with a practice address in Goodyear, and 1,494 emergency medicine physician records in Arizona.
All 1,494 in Arizona → Every provider in Goodyear → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Ty Bowman, MDGoodyear, AZ 853951619503596
- Nancy Churosh, M.D.Goodyear, AZ 853951851379051
- Michel Dagher, D.O.Goodyear, AZ 853951245669993
- Mitchell Erickson, PAGoodyear, AZ 853951073598355
- Jennifer Fitzgerald, DOGoodyear, AZ 853951255968715
- Matthew KamerGoodyear, AZ 853951316574486
- Amy KristensenGoodyear, AZ 853951780212225
- Masood Mohammed, DOGoodyear, AZ 853951588124275
Common questions
What is Brian Casillas, MD's NPI number?
Brian Casillas, MD's National Provider Identifier (NPI) is 1215514310, issued on Mar 25, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Brian Casillas, MD located?
The NPPES record lists a practice address at 13657 W Mcdowell RD Ste 220, Goodyear, AZ, 85395. Phone: (623) 882-1500. Providers update this record themselves, so call before visiting.
How can I verify Brian Casillas, MD's license?
NPPES lists Arizona license number 71780, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Brian Casillas, MD prescribe under Medicare Part D?
In 2024, Brian Casillas, MD had 142 Medicare Part D claims for 99 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.