NPPES file of Aug 9, 2026

Stephanie Dianne De Santiago

Gerontology Nurse Practitioner · Sun City, AZ

Stephanie Dianne De Santiago is a gerontology nurse practitioner with a practice address in Sun City, Arizona, and NPI 1497303028, issued on Aug 27, 2019. Check the license (Arizona 226871, 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
1497303028
Name
Stephanie Dianne De Santiago
Primary taxonomy
Gerontology Nurse Practitioner 363LG0600X
License number
226871 AZ
Self-reported in NPPES; status is on the state search
Practice location
10515 W Santa FE Dr, Sun City, AZ 85351
Phone
(480) 209-5629
Enumerated
Aug 27, 2019
Record last updated
Oct 2, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20191015003617); 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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Also registered at 10515 W Santa FE Dr

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

  1. Briana Auman, PSY.D.Clinical Neuropsychologist1437506490
  2. Thomas Beach, M.D.Neuropathology Physician1417292152
  3. Melissa Cardenas, FNP-CFamily Nurse Practitioner1982103586
  4. Joanne Ceimo, M.D.Geriatric Medicine (Internal Medicine) Physician1851493845
  5. Sara Dhanani, M.DNeurology Physician1063614873
  6. Andrew Ho, DONeurology Physician1194288688

Verify Stephanie Dianne De Santiago 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 226871
    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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26% fewer Medicare Part D claims than the average gerontology nurse practitioner in 2024

1,017 Medicare Part D claims for 253 beneficiaries, against an average of 1,369 among the 6,165 providers of this specialty who prescribed in Part D. Brand-name drugs were 2% of claims.

  1. Stephanie De Santiago1,017
  2. Specialty average1,369

Most prescribed

  1. Donepezil Hcl344 claims
  2. Memantine Hcl220 claims
  3. Escitalopram Oxalate105 claims
  4. Sertraline Hcl74 claims
  5. Quetiapine Fumarate49 claims
  6. Trazodone Hcl27 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): 98.3 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. Qualitynot scored (reweighted)
  2. Costout of 100 · 30%98.1
  3. Promoting interoperabilityout of 100 · 25%98.0
  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).

Bills Medicare through 2 group practices

  1. Banner Alzheimers InstituteSun City, AZ
  2. Brain And Spine Center PLCChandler, AZ

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

Stephanie Dianne De Santiago among 156 gerontology nurse practitioner records in Arizona

Stephanie Dianne De Santiago is one of 156 gerontology nurse practitioner records with a practice address in Arizona. 74% 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 48% of them.

  • NPI issued2019 · 48% of these records are older, 42% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated2019 · median 2019 among the 92 with a school on file
  • Record last updated2019 · 37% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LG0600X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gerontology Nurse Practitioner providers in Arizona

There are 156 gerontology nurse practitioner records in Arizona.

The 8 gerontology nurse practitioner records with the nearest ZIP codes

  1. Sinclaire SantosSun City, AZ 853511154158186
  2. Debra Witthar, BSN, MSN, DNPSun City, AZ 853511760090427
  3. Nicole Humphrey, NPLitchfield Park, AZ 853401932611522
  4. Efoui Abotsi-Kowu, NPYuma, AZ 853641609431220
  5. Maria Theresa Magat, AGPCNP-BCGoodyear, AZ 853381083350615
  6. Annalisa McBride, AGNP-CYuma, AZ 853641245037084
  7. Bosede Ogidan-Obadina, APRNYuma, AZ 853641356833784
  8. Waheed Olabode, NPGoodyear, AZ 853381184197691

Common questions

What is Stephanie Dianne De Santiago's NPI number?

Stephanie Dianne De Santiago's National Provider Identifier (NPI) is 1497303028, issued on Aug 27, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Stephanie Dianne De Santiago located?

The NPPES record lists a practice address at 10515 W Santa FE Dr, Sun City, AZ, 85351. Phone: (480) 209-5629. Providers update this record themselves, so call before visiting.

How can I verify Stephanie Dianne De Santiago's license?

NPPES lists Arizona license number 226871, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Stephanie Dianne De Santiago prescribe under Medicare Part D?

In 2024, Stephanie Dianne De Santiago had 1,017 Medicare Part D claims for 253 beneficiaries; the average among gerontology nurse practitioner prescribers was 1,369. Part D covers Medicare prescriptions only.

What is Stephanie Dianne De Santiago's MIPS final score?

The 2023 MIPS final score is 98.3 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.