NPPES file of Aug 9, 2026

Eileen Frances Mahler, FNP

Family Nurse Practitioner · Prescott, AZ

Eileen Frances Mahler, FNP is a family nurse practitioner with a practice address in Prescott, Arizona, and NPI 1922438563, issued on Nov 18, 2013. Check the license (Arizona AP5307, 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
1922438563
Name
Eileen Frances Mahler
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP5307 AZ
Self-reported in NPPES; status is on the state search
Practice location
919 12TH PL Ste 10, Prescott, AZ 86305
Phone
(520) 954-8281
Enumerated
Nov 18, 2013
Record last updated
May 19, 2026
Medicare enrollment
Enrolled (PECOS I20140422002153); 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.
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Verify Eileen Frances Mahler 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 AP5307
    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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2.1 times the Medicare Part D claims of the average family nurse practitioner in 2024

2,805 Medicare Part D claims for 447 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 211 claims were for opioids.

  1. Eileen Mahler2,805
  2. Specialty average1,305

Most prescribed

  1. Levothyroxine Sodium162 claims
  2. Atorvastatin Calcium124 claims
  3. Lisinopril110 claims
  4. Rosuvastatin Calcium106 claims
  5. Prednisone86 claims
  6. Gabapentin74 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: $190.34

10 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Eileen Mahler$190.34
  2. Specialty average$650.95

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. Priority Family Medical Clinic LLCPrescott, AZ

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

Eileen Frances Mahler among 5,933 family nurse practitioner records in Arizona

Eileen Frances Mahler, FNP 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 2013, is newer than 23% of them.

  • NPI issued2013 · 23% of these records are older, 73% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2013 · median 2019 among the 3,510 with a school on file
  • Record last updated2026 · 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).

99 family nurse practitioner records list a practice address in Prescott

They are 99 of the 1,818 NPPES records with a practice address in Prescott, and 5,933 family nurse practitioner records in Arizona.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Brenda Austin, NP-CPrescott, AZ 863051013959964
  2. Judy Bandy, FNPPrescott, AZ 863051922022086
  3. Diane Barrera, NPPrescott, AZ 863051689097792
  4. Janis Bowers, N.P.Prescott, AZ 863051649277922
  5. Thomas Gann, N.P.Prescott, AZ 863051073866406
  6. Debra Krupnick, FNPPrescott, AZ 863051568412781
  7. Debra Lessner, FNPPrescott, AZ 863051104153816
  8. Jennifer Moore, FNP-BCPrescott, AZ 863051851731053

Common questions

What is Eileen Frances Mahler, FNP's NPI number?

Eileen Frances Mahler, FNP's National Provider Identifier (NPI) is 1922438563, issued on Nov 18, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Eileen Frances Mahler, FNP located?

The NPPES record lists a practice address at 919 12TH PL Ste 10, Prescott, AZ, 86305. Phone: (520) 954-8281. Providers update this record themselves, so call before visiting.

How can I verify Eileen Frances Mahler, FNP's license?

NPPES lists Arizona license number AP5307, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Eileen Frances Mahler, FNP prescribe under Medicare Part D?

In 2024, Eileen Frances Mahler, FNP had 2,805 Medicare Part D claims for 447 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.