NPPES file of Aug 9, 2026

Jessica Diaz, FNP-C

Nurse Practitioner · Gilbert, AZ

Jessica Diaz, FNP-C is a nurse practitioner with a practice address in Gilbert, Arizona, and NPI 1598484917, issued on Aug 29, 2022. Check the license (Arizona 278654, 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
1598484917
Name
Jessica Diaz
Credential
FNP-C
Primary taxonomy
Nurse Practitioner 363L00000X
License number
278654 AZ
Self-reported in NPPES; status is on the state search
Practice location
3303 E Baseline RD Ste 203, Gilbert, AZ 85234
Phone
(480) 300-5388
Enumerated
Aug 29, 2022
Record last updated
Jan 24, 2023
Fax
(480) 535-5841
Medicare enrollment
Enrolled (PECOS I20230208003003); 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.
Download card Updates feed

Also registered at 3303 E Baseline RD Ste 203

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

  1. Jorge Aragon, BSNutrition Education Nutritionist1942869664
  2. Jesmina ShresthaFamily Nurse Practitioner1760855670
  3. Ana Sierra De Aragon, M.D.Internal Medicine Physician1306070750

Verify Jessica Diaz 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 278654
    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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

3.2 times the Medicare Part D claims of the average nurse practitioner in 2024

3,527 Medicare Part D claims for 366 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims. 31 claims were for opioids.

  1. Jessica Diaz3,527
  2. Specialty average1,109

Most prescribed

  1. Atorvastatin Calcium180 claims
  2. Levothyroxine Sodium154 claims
  3. Amlodipine Besylate127 claims
  4. Rosuvastatin Calcium114 claims
  5. Lisinopril103 claims
  6. Losartan Potassium99 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: $584.22

26 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 38,884 providers of this specialty with any payment received $791.64 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Jessica Diaz$584.22
  2. Specialty average$791.64

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. Ana M Sierra DE Aragon MDGilbert, AZ

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

Jessica Diaz among 1,423 nurse practitioner records in Arizona

Jessica Diaz, FNP-C is one of 1,423 nurse practitioner records with a practice address in Arizona. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 74% of them.

  • NPI issued2022 · 74% of these records are older, 21% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated2022 · median 2019 among the 805 with a school on file
  • Record last updated2023 · 39% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363L00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

56 nurse practitioner records list a practice address in Gilbert

They are 56 of the 5,802 NPPES records with a practice address in Gilbert, and 1,423 nurse practitioner records in Arizona.

The 8 nurse practitioner records with the nearest ZIP codes

  1. Tara Arguelles, FNPGilbert, AZ 852341285282319
  2. Traci Arney, N.P.Gilbert, AZ 852341407825235
  3. Gale Barr, NP-CGilbert, AZ 852341912970153
  4. Sarah Blankenheimer, FNP-CGilbert, AZ 852341265940415
  5. Kathleen Forgy, NPGilbert, AZ 852341336561828
  6. Tonya Kinsinger, MSN, APRN, AGPCNP-CGilbert, AZ 852341538577416
  7. Kim Locher, N.PGilbert, AZ 852341104843952
  8. Mary Lopez, FNPGilbert, AZ 852341326468463

Common questions

What is Jessica Diaz, FNP-C's NPI number?

Jessica Diaz, FNP-C's National Provider Identifier (NPI) is 1598484917, issued on Aug 29, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Jessica Diaz, FNP-C located?

The NPPES record lists a practice address at 3303 E Baseline RD Ste 203, Gilbert, AZ, 85234. Phone: (480) 300-5388. Providers update this record themselves, so call before visiting.

How can I verify Jessica Diaz, FNP-C's license?

NPPES lists Arizona license number 278654, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Jessica Diaz, FNP-C prescribe under Medicare Part D?

In 2024, Jessica Diaz, FNP-C had 3,527 Medicare Part D claims for 366 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.