NPPES file of Aug 9, 2026

Cassandra Amarillas, FNP

Family Nurse Practitioner · Tucson, AZ

Cassandra Amarillas, FNP is a family nurse practitioner with a practice address in Tucson, Arizona, and NPI 1902342603, issued on Jan 18, 2017. Check the license (Arizona AP9823, 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
1902342603
Name
Cassandra Amarillas
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
AP9823 AZ
Self-reported in NPPES; status is on the state search
Practice location
6950 E Golf Links RD, Tucson, AZ 85730
Phone
(520) 309-2289
Enumerated
Jan 18, 2017
Record last updated
Jan 18, 2017 (not updated in 9 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 6950 E Golf Links RD

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

  1. Maya Adams, CNMAdvanced Practice Midwife1639474372
  2. Jenny Ajl, NPFamily Nurse Practitioner1366094609
  3. Ahmed Al-Tyar, PHARMDPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1871889972
  4. Kayla Christiansen, RDRegistered Dietitian1104564764
  5. Erin Cowan, CPNPPediatric Nurse Practitioner1104998061
  6. Jay Croswell, PT, DPTPhysical Therapist1821767880

Verify Cassandra Amarillas 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 AP9823    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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85% fewer Medicare Part D claims than the average family nurse practitioner in 2024

201 Medicare Part D claims for 14 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.

  1. Cassandra Amarillas201
  2. Specialty average1,305

Most prescribed

  1. Montelukast Sodium15 claims
  2. Carvedilol13 claims
  3. Clopidogrel13 claims
  4. Ranolazine Er13 claims
  5. Rosuvastatin Calcium13 claims
  6. Valsartan13 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.

907 family nurse practitioner records list a practice address in Tucson

They are 907 of the 18,788 NPPES records with a practice address in Tucson, and 5,933 family nurse practitioner records in Arizona.

All 907 in Tucson → All 5,933 in Arizona → Every provider in Tucson →

Other family nurse practitioner records in Arizona

  1. Sharla Abalos, NPTucson, AZ1356017677
  2. Kristian Abarca, DNP, FNPWillcox, AZ1710587019
  3. Rosa Abarca, FNP-BC, FNP-CYuma, AZ1023716149
  4. Jessica AbawiChandler, AZ1952943235
  5. Dorothy AbbeyPhoenix, AZ1194535336
  6. Brady AbbottTaylor, AZ1295669331
  7. Mannal Abdalla, FNP, RN, CSAPhoenix, AZ1598258014
  8. Abdirahman AbdiScottsdale, AZ1497405229
  9. Dahab Abdukkaliq, FNPChandler, AZ1780190108
  10. Alyssa Abegg-Garcia, ARNPGilbert, AZ1578081980

Common questions

What is Cassandra Amarillas, FNP's NPI number?

Cassandra Amarillas, FNP's National Provider Identifier (NPI) is 1902342603, issued on Jan 18, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Cassandra Amarillas, FNP located?

The NPPES record lists a practice address at 6950 E Golf Links RD, Tucson, AZ, 85730. Phone: (520) 309-2289. Providers update this record themselves, so call before visiting.

How can I verify Cassandra Amarillas, FNP's license?

NPPES lists Arizona license number AP9823, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Cassandra Amarillas, FNP prescribe under Medicare Part D?

In 2024, Cassandra Amarillas, FNP had 201 Medicare Part D claims for 14 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.