Shel-Don Legarreta, MD
NPI 1902886377 · Internal Medicine Physician · Tempe, AZ
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Shel-Don Legarreta, MD is a Internal Medicine Physician provider in Tempe, AZ (NPI 1902886377).
Provider details
- NPI number
- 1902886377
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 25100 (AZ)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
182 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 93 | $124 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 34 | $9 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 27 | $88 |
| Administration of Influenza Virus VaccineG0008 | 15 | $31 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 13 | $125 |
Typical Medicare-allowed amounts for these services range $9–$125 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 129 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 503 | 149 |
| Levothyroxine Sodium | 373 | 114 |
| Lisinopril | 372 | 110 |
| Amlodipine Besylate | 327 | 99 |
| Metformin Hcl | 230 | 71 |
| Simvastatin | 228 | 67 |
| Losartan Potassium | 182 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-01-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Shel-Don Legarreta's NPI number?
- Shel-Don Legarreta's National Provider Identifier (NPI) is 1902886377, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Shel-Don Legarreta's specialty?
- Shel-Don Legarreta is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Shel-Don Legarreta located?
- Shel-Don Legarreta's practice location on file with NPPES is 1920 E Baseline Rd, Tempe, AZ 85283-1511.
- What is Shel-Don Legarreta's phone number?
- The practice phone number listed in the NPPES registry for Shel-Don Legarreta is (480) 345-5000.
- Does Shel-Don Legarreta accept Medicare?
- Shel-Don Legarreta is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Shel-Don Legarreta's NPI active?
- Yes — Shel-Don Legarreta's NPI (1902886377) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.