NPPES file of Aug 9, 2026

Caitlyn Mierau, PA-C

Physician Assistant · Chester, PA

Caitlyn Mierau, PA-C is a physician assistant with a practice address in Chester, Pennsylvania, and NPI 1992279590, issued on Jan 16, 2019. Check the license (Pennsylvania MA062657, 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
1992279590
Name
Caitlyn Mierau
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License numbers
MA062657 PA
OA006794 PA
Self-reported in NPPES; status is on the state search
Practice location
2112 Providence Ave, Chester, PA 19013
Phone
(610) 874-5366
Enumerated
Jan 16, 2019
Record last updated
Jan 23, 2024
Medicare enrollment
Enrolled (PECOS I20240219000438); 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 2112 Providence Ave

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

  1. Leah Castrovince, AUDAudiologist1033741384
  2. Eileen Coupe, NPNurse Practitioner1316277403
  3. John Feehery, MDOtolaryngology Physician1396826061
  4. Steven Fischer, MDOtolaryngology Physician1780765446
  5. Mark Ginsburg, DOOtolaryngology Physician1326280009
  6. Madelyn Gubernick, AUD, CCC-AAudiologist1427605914

Verify Caitlyn Mierau 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 MA062657
    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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43% fewer Medicare Part D claims than the average physician assistant in 2024

469 Medicare Part D claims for 240 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Caitlyn Mierau469
  2. Specialty average830

Most prescribed

  1. Fluticasone Propionate115 claims
  2. Prednisone62 claims
  3. Methylprednisolone37 claims
  4. Ciprofloxacin-Dexamethasone30 claims
  5. Mupirocin28 claims
  6. Ipratropium Bromide25 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: $179.42

5 payments; by number, the most common kind was food and beverage; the largest payer was Optinose US, 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. Caitlyn Mierau$179.42
  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 one group practice

  1. Providence Ear Nose And Throat Associates IncMedia, PA

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

Caitlyn Mierau among 8,020 physician assistant records in Pennsylvania

Caitlyn Mierau, PA-C is one of 8,020 physician assistant records with a practice address in Pennsylvania. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 57% of them.

  • NPI issued2019 · 57% of these records are older, 37% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2021 · median 2018 among the 5,313 with a school on file
  • Record last updated2024 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

27 physician assistant records list a practice address in Chester

They are 27 of the 1,115 NPPES records with a practice address in Chester, and 8,020 physician assistant records in Pennsylvania.

The 8 physician assistant records with the nearest ZIP codes

  1. John Ashton, PA-CChester, PA 190131760648158
  2. Jennifer Evans, PA-CChester, PA 190131689942690
  3. Julia Godfrey, PA-CUpland, PA 190131922330737
  4. Maria Haggerty, PA-CChester, PA 190131306272604
  5. Jennifer Hartle, P.A.Upland, PA 190131760581268
  6. Jessica McBride, PA-CChester, PA 190131083843742
  7. Daniel-Joseph McCormick, PA-CChester, PA 190131700827771
  8. Donna Pologruto, PA CChester, PA 190131962616516

Common questions

What is Caitlyn Mierau, PA-C's NPI number?

Caitlyn Mierau, PA-C's National Provider Identifier (NPI) is 1992279590, issued on Jan 16, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Caitlyn Mierau, PA-C located?

The NPPES record lists a practice address at 2112 Providence Ave, Chester, PA, 19013. Phone: (610) 874-5366. Providers update this record themselves, so call before visiting.

How can I verify Caitlyn Mierau, PA-C's license?

NPPES lists Pennsylvania license number MA062657, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Caitlyn Mierau, PA-C prescribe under Medicare Part D?

In 2024, Caitlyn Mierau, PA-C had 469 Medicare Part D claims for 240 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.