NPPES file of Aug 9, 2026

Shel-Don Legarreta, MD

Internal Medicine Physician · Tempe, AZ

Shel-Don Legarreta, MD is an internal medicine physician with a practice address in Tempe, Arizona, and NPI 1902886377, issued on Jan 20, 2006. Check the license (Arizona 25100, as entered in NPPES) on the Arizona Medical Board; 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
1902886377
Name
Shel-Don Legarreta
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
25100 AZ
Self-reported in NPPES; status is on the state search
Practice location
1920 E Baseline RD, Tempe, AZ 85283
Phone
(480) 345-5000
Enumerated
Jan 20, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicaid ID
390203 AZ
Medicare enrollment
Enrolled (PECOS I20050519000420); may accept Medicare assignment
Medical or professional school
University Of New Mexico School Of Medicine, 1994
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 1920 E Baseline RD

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

  1. Olubukola Aremu, FNP-CFamily Nurse Practitioner1376901199
  2. John Castro, MDFamily Medicine Physician1619953577
  3. Swapna Chalasani, MDInternal Medicine Physician1407067010
  4. Darren ClontsPharmacist1568884898
  5. Bruce Curtis, M.D.Diagnostic Radiology Physician1073539029
  6. Julie Desoe, APRNFamily Nurse Practitioner1275798464

Verify Shel-Don Legarreta in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 25100
    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
Open the Arizona license search

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2.6 times the Medicare Part D claims of the average internal medicine physician in 2024

8,324 Medicare Part D claims for 893 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims. 278 claims were for opioids.

  1. Shel-Don Legarreta8,324
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium503 claims
  2. Levothyroxine Sodium373 claims
  3. Lisinopril372 claims
  4. Amlodipine Besylate327 claims
  5. Metformin Hcl230 claims
  6. Simvastatin228 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.

Shel-Don Legarreta among 2,853 internal medicine physician records in Arizona

Shel-Don Legarreta, MD is one of 2,853 internal medicine physician records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 55% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 58% of these records are
  • Graduated1994 · median 2003 among the 1,643 with a school on file
  • Record last updated2007 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Internal Medicine Physician providers in Arizona

There are 2,853 internal medicine physician records in Arizona.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Shilpa Bhatnagar, M. D.Tempe, AZ 852831851385876
  2. Robert Bloomberg, MDTempe, AZ 852831952375362
  3. Joshua Bloomberg, DOTempe, AZ 852831881966448
  4. Donald Boles, MDTempe, AZ 852831770566366
  5. Swapna Chalasani, MDTempe, AZ 852831407067010
  6. Shruti Chaurasia, M.D.Tempe, AZ 852831801950464
  7. Anuneet Haas, MDTempe, AZ 852831215960653
  8. Rashda Kaif, MDTempe, AZ 852831952395220

Common questions

What is Shel-Don Legarreta, MD's NPI number?

Shel-Don Legarreta, MD's National Provider Identifier (NPI) is 1902886377, issued on Jan 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Shel-Don Legarreta, MD located?

The NPPES record lists a practice address at 1920 E Baseline RD, Tempe, AZ, 85283. Phone: (480) 345-5000. Providers update this record themselves, so call before visiting.

How can I verify Shel-Don Legarreta, MD's license?

NPPES lists Arizona license number 25100, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Shel-Don Legarreta, MD prescribe under Medicare Part D?

In 2024, Shel-Don Legarreta, MD had 8,324 Medicare Part D claims for 893 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.