NPPES file of Aug 9, 2026

Diana Thayer

Nurse Practitioner · Phoenix, AZ

Diana Thayer is a nurse practitioner with a practice address in Phoenix, Arizona, and NPI 1063975076, issued on Apr 8, 2019. Check the license (Arizona RNP223586, 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
1063975076
Name
Diana Thayer
Primary taxonomy
Nurse Practitioner 363L00000X
License number
RNP223586 AZ
Self-reported in NPPES; status is on the state search
Practice location
1910 E Thomas RD Ste 200, Phoenix, AZ 85016
Phone
(602) 266-2200
Enumerated
Apr 8, 2019
Record last updated
Aug 29, 2019 (not updated in 7 years: call before relying on the address or phone)
Fax
(602) 604-5032
Medicare enrollment
Enrolled (PECOS I20191002001028); 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 1910 E Thomas RD Ste 200

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

  1. Lindsay Calderon, NP-CNurse Practitioner1184026031
  2. Kelly Grogan, N.P.Family Nurse Practitioner1881752038
  3. Desiree Little, APRNFamily Nurse Practitioner1326678319
  4. George Paik, MDInterventional Cardiology Physician1740266550
  5. Hector Vazquez, FNPFamily Nurse Practitioner1366122525

Verify Diana Thayer 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 RNP223586
    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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86% fewer Medicare Part D claims than the average nurse practitioner in 2024

160 Medicare Part D claims for 38 beneficiaries, against an average of 1,109 among the 54,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.

  1. Diana Thayer160
  2. Specialty average1,109

Most prescribed

  1. Omeprazole13 claims
  2. Pantoprazole Sodium12 claims
  3. Atorvastatin Calcium11 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.

Bills Medicare through one group practice

  1. Vhs Outpatient Clinics IncPhoenix, AZ

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

Nurse Practitioner providers in Arizona

There are 1,423 nurse practitioner records in Arizona.

Other nurse practitioner records in Arizona

  1. Emma Abbey, NP-CTucson, AZ1548822562
  2. Ashley Abell, MSN, RN, FNP-CScottsdale, AZ1679041099
  3. Meredith AbneyChandler, AZ1568392124
  4. Armando Abucejo, AGACNP-BCPhoenix, AZ1649785288
  5. Belinda Acosta, FNPTucson, AZ1386622660
  6. Caitlin Adamowicz, NPScottsdale, AZ1104583152
  7. Jamie AdamsFort Defiance, AZ1144007097
  8. Kalekia Adams, DNPScottsdale, AZ1619555034
  9. Rachael Adger, NPTucson, AZ1306806443
  10. Jacqueline Agenbroad, NPPhoenix, AZ1447222328

Common questions

What is Diana Thayer's NPI number?

Diana Thayer's National Provider Identifier (NPI) is 1063975076, issued on Apr 8, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Diana Thayer located?

The NPPES record lists a practice address at 1910 E Thomas RD Ste 200, Phoenix, AZ, 85016. Phone: (602) 266-2200. Providers update this record themselves, so call before visiting.

How can I verify Diana Thayer's license?

NPPES lists Arizona license number RNP223586, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Diana Thayer prescribe under Medicare Part D?

In 2024, Diana Thayer had 160 Medicare Part D claims for 38 beneficiaries; the average among nurse practitioner prescribers was 1,109. 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.