NPPES file of Aug 9, 2026

Casey Simon Brock, P.A.

Physician Assistant · Duluth, MN

Casey Simon Brock, P.A. is a physician assistant with a practice address in Duluth, Minnesota, and NPI 1881953602, issued on May 14, 2012. Check the license (Minnesota 13273, as entered in NPPES) with the Minnesota 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
1881953602
Name
Casey Simon Brock
Credential
P.A.
Primary taxonomy
Physician Assistant 363A00000X
License numbers
13273 MN
PA9114121 FL
PA09822 TX
5908-23 WI
Self-reported in NPPES; status is on the state search
Practice location
920 E 1St St Ste 201, Duluth, MN 55805
Phone
(612) 444-3247
Enumerated
May 14, 2012
Record last updated
Oct 19, 2023
Fax
(612) 888-4247
Medicaid ID
18819533602 MN
Medicare enrollment
Enrolled (PECOS I20201015001793); accepts Medicare assignment
Medical or professional school
University Of Nebraska College Of Medicine, 2013
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 920 E 1St St Ste 201

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

  1. Michael Chmielewski, MDDermatology Physician1205415692
  2. Elizabeth Day, DOCritical Care Medicine (Internal Medicine) Physician1578534053
  3. Trina Hollatz, M.D.Pulmonary Disease Physician1083804256
  4. Sandra Rozier, APRNNurse Practitioner1033564331

Verify Casey Simon Brock in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
    Search for license 13273
    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 Minnesota license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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88% fewer Medicare Part D claims than the average physician assistant in 2024

98 Medicare Part D claims for 74 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Casey Brock98
  2. Specialty average830

Most prescribed

  1. Amoxicillin-Clavulanate Potass16 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: $29.84

2 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Casey Brock$29.84
  2. Specialty average$841.65

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Pine Medical CenterHinckley, MN
  2. The Duluth Clinic LtdCloquet, MN

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

179 physician assistant records list a practice address in Duluth

They are 179 of the 4,084 NPPES records with a practice address in Duluth, and 4,007 physician assistant records in Minnesota.

Other physician assistant records in Minnesota

  1. Ramona Aaseby-Aguilera, PA-CMinneapolis, MN1407896269
  2. Aimee Abben, PA-CSaint Paul, MN1881824258
  3. Deqa Abdi, PA-CRochester, MN1396416970
  4. Najma Abdi, PA-CMinneapolis, MN1255064242
  5. Kelsey Abraham, PA-CCambridge, MN1427666320
  6. Susan AbrahamSaint Paul, MN1801344072
  7. Tess Abrahamson, PA-CMinneapolis, MN1205334828
  8. Alexia Abric, PA-CRochester, MN1962156885
  9. Kholood Abuhadid, PA-CRochester, MN1629739313
  10. Stephanie Adamek, PA-CMinneapolis, MN1104247030

Common questions

What is Casey Simon Brock, P.A.'s NPI number?

Casey Simon Brock, P.A.'s National Provider Identifier (NPI) is 1881953602, issued on May 14, 2012. An NPI identifies a provider in billing; it is not a license.

Where is Casey Simon Brock, P.A. located?

The NPPES record lists a practice address at 920 E 1St St Ste 201, Duluth, MN, 55805. Phone: (612) 444-3247. Providers update this record themselves, so call before visiting.

How can I verify Casey Simon Brock, P.A.'s license?

NPPES lists Minnesota license number 13273, as entered by the provider. Search the Minnesota board that licenses this profession; the NPPES record confirms identity only.

How much does Casey Simon Brock, P.A. prescribe under Medicare Part D?

In 2024, Casey Simon Brock, P.A. had 98 Medicare Part D claims for 74 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.