NPPES file of Aug 9, 2026

Carol Guarnieri, FNP-BC

Family Nurse Practitioner · Scottsdale, AZ

Carol Guarnieri, FNP-BC is a family nurse practitioner with a practice address in Scottsdale, Arizona, and NPI 1457643249, issued on May 11, 2011. Check the license (Arizona AP6173, 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
1457643249
Name
Carol Guarnieri
Credential
FNP-BC
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP6173 AZ
Self-reported in NPPES; status is on the state search
Practice location
9003 E Shea Blvd, Scottsdale, AZ 85260
Phone
(480) 323-3336
Enumerated
May 11, 2011
Record last updated
Dec 21, 2015 (not updated in 11 years: call before relying on the address or phone)
Fax
(480) 323-3334
Medicare enrollment
Enrolled (PECOS I20160323000628); 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 9003 E Shea Blvd

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

  1. Ted Allred, M.D.Anatomic Pathology & Clinical Pathology Physician1447228564
  2. Saif Alrabadi, MDFamily Medicine Physician1518413871
  3. Roberto Ansaldo, PHARM.D.Pharmacist1053527978
  4. Victor Artymonow, PA ASCP CMPhysician Assistant1548908627
  5. Laura Bacon, DNP, APRN-CNS, RNCOBPerinatal Clinical Nurse Specialist1235712746
  6. Steven Barron, CRNFARegistered Nurse First Assistant1366405235

Verify Carol Guarnieri 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 AP6173
    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.

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79% fewer Medicare Part D claims than the average family nurse practitioner in 2024

274 Medicare Part D claims for 48 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 25 claims were for opioids.

  1. Carol Guarnieri274
  2. Specialty average1,305

Most prescribed

  1. Potassium Chloride19 claims
  2. Tamsulosin Hcl19 claims
  3. Lonsurf17 claims
  4. Fruzaqla13 claims
  5. Pantoprazole Sodium13 claims
  6. Spironolactone13 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: $1,221.27

4 payments; by number, the most common kind was food and beverage; the largest payer was Catalyst Pharmaceuticals, 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. Carol Guarnieri$1,221.27
  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. Honorhealth AmbulatoryScottsdale, AZ

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

Carol Guarnieri among 5,933 family nurse practitioner records in Arizona

Carol Guarnieri, FNP-BC 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 2011, is newer than 18% of them.

  • NPI issued2011 · 18% of these records are older, 80% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2010 · median 2019 among the 3,510 with a school on file
  • Record last updated2015 · 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).

432 family nurse practitioner records list a practice address in Scottsdale

They are 432 of the 11,008 NPPES records with a practice address in Scottsdale, and 5,933 family nurse practitioner records in Arizona.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Gina Athetis, FNP-CScottsdale, AZ 852601144403429
  2. Jacquelyn Barnhart, FNP-CScottsdale, AZ 852601225030521
  3. Kathyrne Barnoski, APRN, BCScottsdale, AZ 852601588642490
  4. Jennifer Barth, APRN-BC, FNP-CScottsdale, AZ 852601487838025
  5. Shelli Brian, FNP-CScottsdale, AZ 852601164642500
  6. Jessica Byrd, FNPScottsdale, AZ 852601912218462
  7. Lorilynn Hatcher, FNPScottsdale, AZ 852601558524645
  8. Theresa La Luzerne, MSN , FNP-CScottsdale, AZ 852601952308652

Common questions

What is Carol Guarnieri, FNP-BC's NPI number?

Carol Guarnieri, FNP-BC's National Provider Identifier (NPI) is 1457643249, issued on May 11, 2011. An NPI identifies a provider in billing; it is not a license.

Where is Carol Guarnieri, FNP-BC located?

The NPPES record lists a practice address at 9003 E Shea Blvd, Scottsdale, AZ, 85260. Phone: (480) 323-3336. Providers update this record themselves, so call before visiting.

How can I verify Carol Guarnieri, FNP-BC's license?

NPPES lists Arizona license number AP6173, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Carol Guarnieri, FNP-BC prescribe under Medicare Part D?

In 2024, Carol Guarnieri, FNP-BC had 274 Medicare Part D claims for 48 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.