NPPES file of Aug 9, 2026

Darnell L. Keys

Family Nurse Practitioner · Peoria, AZ

Darnell L. Keys is a family nurse practitioner with a practice address in Peoria, Arizona, and NPI 1679038749, issued on Feb 4, 2019. Check the license (Arizona 221921, 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
1679038749
Name
Darnell L. Keys
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
221921 AZ
Self-reported in NPPES; status is on the state search
Practice location
12799 W Lowden RD, Peoria, AZ 85383
Phone
(480) 399-0108
Enumerated
Feb 4, 2019
Record last updated
Feb 4, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20190628002923); 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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Verify Darnell L. Keys 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 221921
    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

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84% fewer Medicare Part D claims than the average family nurse practitioner in 2024

210 Medicare Part D claims for 147 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Darnell Keys210
  2. Specialty average1,305

Most prescribed

  1. Doxycycline Hyclate30 claims
  2. Nitrofurantoin Mono-Macro23 claims
  3. Albuterol Sulfate Hfa15 claims
  4. Amoxicillin-Clavulanate Potass14 claims
  5. Prednisone14 claims
  6. Methylprednisolone13 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. Nextcare Arizona I JV LLCGlendale, AZ

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

Darnell L. Keys among 5,933 family nurse practitioner records in Arizona

Darnell L. Keys is one of 5,933 family nurse practitioner 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 2019, is newer than 54% of them.

  • NPI issued2019 · 54% of these records are older, 40% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2017 · median 2019 among the 3,510 with a school on file
  • Record last updated2019 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

162 family nurse practitioner records list a practice address in Peoria

They are 162 of the 2,528 NPPES records with a practice address in Peoria, and 5,933 family nurse practitioner records in Arizona.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Ferdinand Briones, MSN,FNP-CPeoria, AZ 853831881173318
  2. Laura Campbell, FNPPeoria, AZ 853831114476520
  3. Jill Dierks, FNPPeoria, AZ 853831609303379
  4. Maria Teresa Espiritu, NP-CPeoria, AZ 853831336702414
  5. Andrea FarrisPeoria, AZ 853831164908414
  6. Shawnee Fudurich, FNP-CPeoria, AZ 853831861057507
  7. Razel Hernandez, NP-CPeoria, AZ 853831265096895
  8. Christina Johnson, FNP-CPeoria, AZ 853831376858746

Common questions

What is Darnell L. Keys's NPI number?

Darnell L. Keys's National Provider Identifier (NPI) is 1679038749, issued on Feb 4, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Darnell L. Keys located?

The NPPES record lists a practice address at 12799 W Lowden RD, Peoria, AZ, 85383. Phone: (480) 399-0108. Providers update this record themselves, so call before visiting.

How can I verify Darnell L. Keys's license?

NPPES lists Arizona license number 221921, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Darnell L. Keys prescribe under Medicare Part D?

In 2024, Darnell L. Keys had 210 Medicare Part D claims for 147 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.