NPPES file of Aug 9, 2026

Zoe Elizabeth O'Warren, PA

Medical Physician Assistant · Tucson, AZ

Zoe Elizabeth O'Warren, PA is a medical physician assistant with a practice address in Tucson, Arizona, and NPI 1699329458, issued on Jul 30, 2019. Check the license 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
1699329458
Name
Zoe Elizabeth O'Warren
Credential
PA
Primary taxonomy
Medical Physician Assistant 363AM0700X
Practice location
4730 E Grant RD, Tucson, AZ 85712
Phone
(520) 989-8012
Enumerated
Jul 30, 2019
Record last updated
May 28, 2026
Fax
(520) 959-8014
Medicare enrollment
Enrolled (PECOS I20191106002657); 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 4730 E Grant RD

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

  1. Cassandra Ballantyne, MDInternal Medicine Physician1851973192
  2. Danielle Brower, D.O.Internal Medicine Physician1306233564
  3. Kaitlin Compton, FNPPrimary Care Nurse Practitioner1689458739
  4. Michael Mayette, APRNNurse Practitioner1255803300
  5. Elena McCabe, FNPFamily Nurse Practitioner1649791450
  6. Rodolfo Penaflor, MDInternal Medicine Physician1821072018

Verify Zoe Elizabeth O'Warren in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this professionCheck 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
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2.2 times the Medicare Part D claims of the average medical physician assistant in 2024

2,543 Medicare Part D claims for 756 beneficiaries, against an average of 1,148 among the 23,801 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 32 claims were for opioids.

  1. Zoe O'Warren2,543
  2. Specialty average1,148

Most prescribed

  1. Amlodipine Besylate145 claims
  2. Levothyroxine Sodium141 claims
  3. Rosuvastatin Calcium133 claims
  4. Gabapentin77 claims
  5. Trazodone Hcl67 claims
  6. Lisinopril62 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: $371.12

4 payments; by number, the most common kind was food and beverage; the largest payer was Actelion Pharmaceuticals US, Inc. The 16,165 providers of this specialty with any payment received $1,055.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Zoe O'Warren$371.12
  2. Specialty average$1,055.00

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. Greater Phoenix Collaborative Care PCPhoenix, AZ
  2. Northwest Urgent Care LLCTucson, AZ

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

Medical Physician Assistant providers in Arizona

There are 996 medical physician assistant records in Arizona.

Other medical physician assistant records in Arizona

  1. Carley Abbott, PA-CChandler, AZ1649959792
  2. Delmas Abbott, PA-CPrescott, AZ1437452836
  3. Michael Abraham, PA-CPhoenix, AZ1548651599
  4. Elaine Accomando, PACottonwood, AZ1033189444
  5. Jesus Acero, PAPhoenix, AZ1104583582
  6. Mica Adair, PAPrescott Valley, AZ1831653377
  7. Sarah Adamo, PA-CGilbert, AZ1952652604
  8. Gladys Adams, PA-CPhoenix, AZ1982603601
  9. Robin Adamson, PA-CChandler, AZ1649220401
  10. Mark Adelman, P.A.Mesa, AZ1255370409

Common questions

What is Zoe Elizabeth O'Warren, PA's NPI number?

Zoe Elizabeth O'Warren, PA's National Provider Identifier (NPI) is 1699329458, issued on Jul 30, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Zoe Elizabeth O'Warren, PA located?

The NPPES record lists a practice address at 4730 E Grant RD, Tucson, AZ, 85712. Phone: (520) 989-8012. Providers update this record themselves, so call before visiting.

How can I verify Zoe Elizabeth O'Warren, PA's license?

Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Zoe Elizabeth O'Warren, PA prescribe under Medicare Part D?

In 2024, Zoe Elizabeth O'Warren, PA had 2,543 Medicare Part D claims for 756 beneficiaries; the average among medical physician assistant prescribers was 1,148. 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.