NPPES file of Aug 9, 2026

Brian C. Rosenau, PA-C

Physician Assistant · Eloy, AZ

Brian C. Rosenau, PA-C is a physician assistant with a practice address in Eloy, Arizona, and NPI 1639301948, issued on Aug 20, 2009. Check the license (Arizona 4446, as entered in NPPES) with the Arizona 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639301948
Name
Brian C. Rosenau
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
4446 AZ
Self-reported in NPPES; status is on the state search
Practice location
205 N Stuart Blvd, Eloy, AZ 85131
Phone
(520) 466-7883
Enumerated
Aug 20, 2009
Record last updated
Jul 21, 2022
Fax
(520) 466-3946
Medicaid ID
458310 AZ
Medicare enrollment
Enrolled (PECOS I20091013000060); accepts 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 205 N Stuart Blvd

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

  1. Maria Chamorro, FNP-BCFamily Nurse Practitioner1871254235
  2. Victor Guerrero, PHARMDPharmacist1295616241
  3. Bridget Hemingway, DNP, FNP-CFamily Nurse Practitioner1083307680
  4. David Plude, RPHPharmacist1841567872
  5. Joel SalazarPharmacist1932817848
  6. Claudia Symmonds, FNPFamily Nurse Practitioner1417407115

Verify Brian C. Rosenau in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license 4446
    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 Arizona license search

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20% fewer Medicare Part D claims than the average physician assistant in 2024

668 Medicare Part D claims for 508 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Brian Rosenau668
  2. Specialty average830

Most prescribed

  1. Nitrofurantoin Mono-Macro89 claims
  2. Amoxicillin-Clavulanate Potass75 claims
  3. Fluticasone Propionate75 claims
  4. Cephalexin49 claims
  5. Prednisone35 claims
  6. Albuterol Sulfate Hfa34 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): 89.1 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.

  1. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%63.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through 2 group practices

  1. Banner Urgent Care Arizona LLCCasa Grande, AZ
  2. Banner Urgent Care Services LLCScottsdale, AZ

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

2 physician assistant records list a practice address in Eloy

They are 2 of the 42 NPPES records with a practice address in Eloy, and 3,666 physician assistant records in Arizona.

Other physician assistant records in Arizona

  1. Lindsey Abajian, PA-CPhoenix, AZ1306125620
  2. Allison Abbey, PA-CCottonwood, AZ1871257246
  3. Sarah Abbott, PAPhoenix, AZ1609969666
  4. Kristen Abel, PA-CMesa, AZ1346037181
  5. Abigail Abellana, PA-CScottsdale, AZ1629931670
  6. Heidi Abersfeller, PA CCasa Grande, AZ1356379754
  7. Collin Abitz, PAGlendale, AZ1376342386
  8. Colleen AbramsChandler, AZ1407285448
  9. Madison AbramsSurprise, AZ1609495571
  10. Michael AbrilScottsdale, AZ1245854728

Common questions

What is Brian C. Rosenau, PA-C's NPI number?

Brian C. Rosenau, PA-C's National Provider Identifier (NPI) is 1639301948, issued on Aug 20, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Brian C. Rosenau, PA-C located?

The NPPES record lists a practice address at 205 N Stuart Blvd, Eloy, AZ, 85131. Phone: (520) 466-7883. Providers update this record themselves, so call before visiting.

How can I verify Brian C. Rosenau, PA-C's license?

NPPES lists Arizona license number 4446, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Brian C. Rosenau, PA-C prescribe under Medicare Part D?

In 2024, Brian C. Rosenau, PA-C had 668 Medicare Part D claims for 508 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Brian C. Rosenau, PA-C's MIPS final score?

The 2023 MIPS final score is 89.1 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.