Leonard Yontz, M.D.
NPI 1578805966 · Emergency Medicine Physician · Buckeye, AZ
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leonard Yontz, M.D. is a Emergency Medicine Physician provider in Buckeye, AZ (NPI 1578805966).
Provider details
- NPI number
- 1578805966
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 49717 (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
13 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
556 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) |
|---|---|---|
| Emergency Department Visit With High Level of Medical Decision Making99285 | 186 | $167 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 158 | $8 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 95 | $116 |
| Critical Care, First 30-74 Minutes99291 | 66 | $203 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 51 | $68 |
Typical Medicare-allowed amounts for these services range $8–$203 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Mupirocin | 35 | 31 |
| Cephalexin | 33 | 32 |
| Ibuprofen | 30 | 30 |
| Ondansetronbrand: Ondansetron Odt | 24 | 23 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 17 | 17 |
| Prochlorperazine Maleate | 16 | 16 |
| Oxycodone Hcl/Acetaminophenbrand: Oxycodone-Acetaminophen | 15 | 15 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2013-03-23
- Last updated
- 2021-04-20
- Certified
- 2021-04-20
Frequently asked questions
- What is Leonard Yontz's NPI number?
- Leonard Yontz's National Provider Identifier (NPI) is 1578805966, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leonard Yontz's specialty?
- Leonard Yontz is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leonard Yontz located?
- Leonard Yontz's practice location on file with NPPES is 525 S Watson Rd, Buckeye, AZ 85326-3449.
- What is Leonard Yontz's phone number?
- The practice phone number listed in the NPPES registry for Leonard Yontz is (623) 925-3980.
- Does Leonard Yontz accept Medicare?
- Leonard Yontz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leonard Yontz's NPI active?
- Yes — Leonard Yontz's NPI (1578805966) is active in the NPPES registry as of the last update on 2021-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.