NPPES file of Aug 9, 2026

Karin L. Parrett, P.A. - C

Physician Assistant · Phoenix, AZ

Karin L. Parrett, P.A. - C is a physician assistant with a practice address in Phoenix, Arizona, and NPI 1093797953, issued on Nov 16, 2005. Check the license (Arizona 2392, 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
1093797953
Name
Karin L. Parrett
Credential
P.A. - C
Primary taxonomy
Physician Assistant 363A00000X
License number
2392 AZ
Self-reported in NPPES; status is on the state search
Practice location
5779 E Mayo Blvd, Phoenix, AZ 85054
Phone
(480) 301-8000
Enumerated
Nov 16, 2005
Record last updated
Sep 3, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20091222000121); 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 5779 E Mayo Blvd

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

  1. Andrew Adamczyk, MDOrthopaedic Surgery Physician1639898620
  2. Paul Andrews, M.D.Urology Physician1710962345
  3. Heidi Apsey, N.P.Nurse Practitioner1437344793
  4. Howard Asaki, P.A.-C.Physician Assistant1801878228
  5. Stacie Attig, AGPCNPNurse Practitioner1902315435
  6. Stephen Bansberg, M.D.Otolaryngology Physician1891770426

Verify Karin L. Parrett 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 2392
    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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81% fewer Medicare Part D claims than the average physician assistant in 2024

159 Medicare Part D claims for 43 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 19 claims were for opioids.

  1. Karin Parrett159
  2. Specialty average830

Most prescribed

  1. Warfarin Sodium17 claims
  2. Oxycodone Hcl15 claims
  3. Furosemide14 claims
  4. Metoprolol Tartrate13 claims
  5. Pantoprazole Sodium11 claims
  6. Potassium Chloride11 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): 78.6 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. Qualityout of 100 · 30% of the final score69.1
  2. Costout of 100 · 30%59.6
  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 one group practice

  1. Mayo Clinic ArizonaScottsdale, AZ

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

Karin L. Parrett among 3,666 physician assistant records in Arizona

Karin L. Parrett, P.A. - 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 97% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1999 · median 2018 among the 2,207 with a school on file
  • Record last updated2020 · 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. Howard Asaki, P.A.-C.Phoenix, AZ 850541801878228
  2. Michele Cambria, P.A.-C.Phoenix, AZ 850541265415210
  3. Dondii Delgado, PA-CPhoenix, AZ 850541033119532
  4. Rhonda Eiland, P.A.-C.Phoenix, AZ 850541205810496
  5. Kristen Kalkbrenner, P.A.-C.Phoenix, AZ 850541871576819
  6. Laura Klusovsky, P.A.-C.Phoenix, AZ 850541679556641
  7. Heather Lucas, P.A.-C.Phoenix, AZ 850541104809144
  8. Carolyn Peterson, P.A. - CPhoenix, AZ 850541477535334

Common questions

What is Karin L. Parrett, P.A. - C's NPI number?

Karin L. Parrett, P.A. - C's National Provider Identifier (NPI) is 1093797953, issued on Nov 16, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Karin L. Parrett, P.A. - C located?

The NPPES record lists a practice address at 5779 E Mayo Blvd, Phoenix, AZ, 85054. Phone: (480) 301-8000. Providers update this record themselves, so call before visiting.

How can I verify Karin L. Parrett, P.A. - C's license?

NPPES lists Arizona license number 2392, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Karin L. Parrett, P.A. - C prescribe under Medicare Part D?

In 2024, Karin L. Parrett, P.A. - C had 159 Medicare Part D claims for 43 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Karin L. Parrett, P.A. - C's MIPS final score?

The 2023 MIPS final score is 78.6 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.