John Loewen, M.D
NPI 1760435960 · Emergency Medicine Physician · Sun City, AZ
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Loewen, M.D is a Emergency Medicine Physician provider in Sun City, AZ (NPI 1760435960).
Provider details
- NPI number
- 1760435960
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D
- Sex
- Male
- Sole proprietor
- No
- License
- 33798 (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
1,094 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 | 469 | $181 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 288 | $9 |
| Electrocardiogram (ecg) 1 to 3 Leads With Review By Physician Only93042 | 168 | $7 |
| Emergency Department Visit With Moderate Level of Medical Decision Making99284 | 78 | $125 |
| Critical Care, First 30-74 Minutes99291 | 75 | $225 |
| Emergency Department Visit With Low Level of Medical Decision Making99283 | 16 | $74 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Tramadol Hcl | 31 | 31 |
| Cephalexin | 31 | 31 |
| Ondansetronbrand: Ondansetron Odt | 28 | 28 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 27 | 27 |
| Azithromycin | 26 | 26 |
| Prednisone | 18 | 18 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-18
- Last updated
- 2008-02-01
Frequently asked questions
- What is John Loewen's NPI number?
- John Loewen's National Provider Identifier (NPI) is 1760435960, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Loewen's specialty?
- John Loewen is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Loewen located?
- John Loewen's practice location on file with NPPES is 10401 West Thunderbird Boulevard, Sun City, AZ 85351.
- What is John Loewen's phone number?
- The practice phone number listed in the NPPES registry for John Loewen is (623) 977-7211.
- Does John Loewen accept Medicare?
- John Loewen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Loewen's NPI active?
- Yes — John Loewen's NPI (1760435960) is active in the NPPES registry as of the last update on 2008-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.