NPPES file of Aug 9, 2026

Johnathon Swierski, PA-C

Physician Assistant · Phoenix, AZ

Johnathon Swierski, PA-C is a physician assistant with a practice address in Phoenix, Arizona, and NPI 1558831412, issued on Dec 4, 2018. Check the license (Arizona 7244, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1558831412
Name
Johnathon Swierski
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
7244 AZ
Self-reported in NPPES; status is on the state search
Practice location
2201 E Camelback RD Ste 101A, Phoenix, AZ 85016
Phone
(602) 218-4075
Enumerated
Dec 4, 2018
Record last updated
Mar 14, 2025
Fax
(415) 252-7176
Medicare enrollment
Enrolled (PECOS I20190225000729); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 2201 E Camelback RD Ste 101A

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

  1. Maria Andrews, FNPFamily Nurse Practitioner1801196175
  2. Katherine Cashner, FNP-BCNurse Practitioner1225330111
  3. Elizabeth Clapper, MSN, APRN, FNP-CFamily Nurse Practitioner1275222424
  4. Jamie Conigliaro, NPNurse Practitioner1356909584
  5. Christina Cousins, P.A.-CPhysician Assistant1922022813
  6. Lisa Daniels, PAPhysician Assistant1144353327

Verify Johnathon Swierski 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 7244
    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

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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83% fewer Medicare Part D claims than the average physician assistant in 2024

140 Medicare Part D claims for 52 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D.

  1. Johnathon Swierski140
  2. Specialty average830

Most prescribed

  1. Losartan Potassium12 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. Iora Senior Health LLCPhoenix, AZ

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

Johnathon Swierski among 3,666 physician assistant records in Arizona

Johnathon Swierski, PA-C is one of 3,666 physician assistant records with a practice address in Arizona. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 48% of them.

  • NPI issued2018 · 48% of these records are older, 47% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated2018 · median 2018 among the 2,207 with a school on file
  • Record last updated2025 · 35% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

923 physician assistant records list a practice address in Phoenix

They are 923 of the 31,399 NPPES records with a practice address in Phoenix, and 3,666 physician assistant records in Arizona.

The 8 physician assistant records with the nearest ZIP codes

  1. Naomi Alcock, PAPhoenix, AZ 850161457342214
  2. Kristen Beebe, P.A.-C.Phoenix, AZ 850161275511453
  3. Orlando Delgado, PA-CPhoenix, AZ 850161699749515
  4. David Dixon, PAPhoenix, AZ 850161417929720
  5. Henry Ellington, P.A.C.Phoenix, AZ 850161316921992
  6. Jacquelynn Henderson, PA-CPhoenix, AZ 850161003875253
  7. Latisha Leonard Bernier, PA-CPhoenix, AZ 850161780649210
  8. Matthew Overlin, PAPhoenix, AZ 850161518916113

Common questions

What is Johnathon Swierski, PA-C's NPI number?

Johnathon Swierski, PA-C's National Provider Identifier (NPI) is 1558831412, issued on Dec 4, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Johnathon Swierski, PA-C located?

The NPPES record lists a practice address at 2201 E Camelback RD Ste 101A, Phoenix, AZ, 85016. Phone: (602) 218-4075. Providers update this record themselves, so call before visiting.

How can I verify Johnathon Swierski, PA-C's license?

NPPES lists Arizona license number 7244, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Johnathon Swierski, PA-C prescribe under Medicare Part D?

In 2024, Johnathon Swierski, PA-C had 140 Medicare Part D claims for 52 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.