NPPES file of Aug 9, 2026

Shera Lynne Tonazzi, FNP

Family Nurse Practitioner · Scottsdale, AZ

Shera Lynne Tonazzi, FNP is a family nurse practitioner with a practice address in Scottsdale, Arizona, and NPI 1922447747, issued on Jun 14, 2013. Check the license (Arizona AP5021, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1922447747
Name
Shera Lynne Tonazzi
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP5021 AZ
Self-reported in NPPES; status is on the state search
Practice location
10900 N Scottsdale RD, Scottsdale, AZ 85254
Phone
(480) 991-5088
Enumerated
Jun 14, 2013
Record last updated
Dec 31, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(480) 367-1361
Medicare enrollment
Enrolled (PECOS I20140801000433); 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 10900 N Scottsdale RD

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

  1. Gina Berman, M.D.Emergency Medicine Physician1740207190
  2. David Butler, MDPediatrics Physician1487655262
  3. Robert Casquejo, PA-CMedical Physician Assistant1043317050
  4. Stephen Cohen, ODOptometrist1891765921
  5. Sumer Daiza, MDPlastic Surgery Physician1013065622
  6. Donna Dundon, FNPFamily Nurse Practitioner1972666295

Verify Shera Lynne Tonazzi 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 AP5021
    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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77% fewer Medicare Part D claims than the average family nurse practitioner in 2024

300 Medicare Part D claims for 207 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Shera Tonazzi300
  2. Specialty average1,305

Most prescribed

  1. Azithromycin30 claims
  2. Amoxicillin-Clavulanate Potass29 claims
  3. Prednisone28 claims
  4. Ipratropium Bromide25 claims
  5. Ciprofloxacin Hcl17 claims
  6. Amoxicillin15 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 75.6 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.0
  2. Costout of 100 · 30%44.6
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $125.00

1 payment: food and beverage; the largest payer was Ultragenyx Pharmaceutical 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. Shera Tonazzi$125.00
  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 Urgent Care LLCPhoenix, AZ

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

Shera Lynne Tonazzi among 5,933 family nurse practitioner records in Arizona

Shera Lynne Tonazzi, 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 updated2013 · 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. Kristi Chase, NPScottsdale, AZ 852541235297870
  2. Amy Churchill, FNPScottsdale, AZ 852541174599013
  3. Lisa Dugan, FNP-CScottsdale, AZ 852541487955357
  4. Donna Dundon, FNPScottsdale, AZ 852541972666295
  5. Kristina Fawcett, FNP-CScottsdale, AZ 852541225307754
  6. Susan Fiacco, FNPScottsdale, AZ 852541629380563
  7. Mary McGlasson, ARNPScottsdale, AZ 852541740268028
  8. Peter Rayis, FNP-BC, D.C.Scottsdale, AZ 852541407198039

Common questions

What is Shera Lynne Tonazzi, FNP's NPI number?

Shera Lynne Tonazzi, FNP's National Provider Identifier (NPI) is 1922447747, issued on Jun 14, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Shera Lynne Tonazzi, FNP located?

The NPPES record lists a practice address at 10900 N Scottsdale RD, Scottsdale, AZ, 85254. Phone: (480) 991-5088. Providers update this record themselves, so call before visiting.

How can I verify Shera Lynne Tonazzi, FNP's license?

NPPES lists Arizona license number AP5021, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Shera Lynne Tonazzi, FNP prescribe under Medicare Part D?

In 2024, Shera Lynne Tonazzi, FNP had 300 Medicare Part D claims for 207 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Shera Lynne Tonazzi, FNP's MIPS final score?

The 2023 MIPS final score is 75.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.