Katherine Cox, PA
Physician Assistant · Phoenix, AZ
Katherine Cox, PA is a physician assistant with a practice address in Phoenix, Arizona, and NPI 1942386990, issued on Oct 31, 2006. Check the license (Arizona 3504, as entered in NPPES) with the Arizona board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Katherine Cox
- Credential
- PA
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- 3504 AZ
Self-reported in NPPES; status is on the state search - Practice location
- Maricopa Medical Center, Phoenix, AZ 85008
- Phone
- (602) 344-4518
- Enumerated
- Oct 31, 2006
- Record last updated
- Oct 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070228000614); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 3,666 in Arizona → Look up another NPI →
Verify Katherine Cox in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Arizona board licenses this profession
Search for license 3504Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average physician assistant in 2024
1,395 Medicare Part D claims for 200 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Atorvastatin Calcium161 claims
- Metoprolol Succinate126 claims
- Lisinopril90 claims
- Rosuvastatin Calcium82 claims
- Carvedilol79 claims
- Eliquis73 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): 93.4 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.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $32.85
2 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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.
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
- Circle The CityPhoenix, AZ
- District Medical Group IncPhoenix, AZ
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Katherine Cox among 3,666 physician assistant records in Arizona
Katherine Cox, PA 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 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 84% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2006 · median 2018 among the 2,207 with a school on file
- Record last updated2021 · 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.
All 3,666 in Arizona → Every provider in Phoenix → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Bridget Barron, PACPhoenix, AZ 850081275960973
- Katie Fisher, PA-CPhoenix, AZ 850081285915967
- Erin Ford, PAPhoenix, AZ 850081376727644
- Tana Frumento, PA-CPhoenix, AZ 850081972644532
- Brooke Morrow, P.A.Phoenix, AZ 850081275670861
- Sarrah Mosher, PA-CPhoenix, AZ 850081912208869
- Steven Mouch, PAPhoenix, AZ 850081326299462
- Ian Myers, PAPhoenix, AZ 850081386832434
Common questions
What is Katherine Cox, PA's NPI number?
Katherine Cox, PA's National Provider Identifier (NPI) is 1942386990, issued on Oct 31, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Cox, PA located?
The NPPES record lists a practice address at Maricopa Medical Center, Phoenix, AZ, 85008. Phone: (602) 344-4518. Providers update this record themselves, so call before visiting.
How can I verify Katherine Cox, PA's license?
NPPES lists Arizona license number 3504, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.
How much does Katherine Cox, PA prescribe under Medicare Part D?
In 2024, Katherine Cox, PA had 1,395 Medicare Part D claims for 200 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.
What is Katherine Cox, PA's MIPS final score?
The 2023 MIPS final score is 93.4 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.