Quick answers
- Does John F. Madden accept Medicare assignment?
- Medicare's clinician data says John F. Madden may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
- How many Medicare patients does John F. Madden see?
- In 2024, CMS data shows 56 Original Medicare patients and 363 services for John F. Madden. This counts Original Medicare only and measures volume, not quality.
- What is John F. Madden's NPI number?
- 1538380290. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for John F. Madden, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 56 |
|---|---|
| Services billed to Medicare | 363 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)106 services
- Urinalysis, manual test (81002)68 services
- Insertion of needle into vein for collection of blood sample (36415)62 services
- Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)49 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)46 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol75%
- Diabetes43%
- Arthritis43%
- Chronic kidney disease34%
- Ischemic heart disease25%
Practice locations
Addresses where John F. Madden is enrolled with Medicare (CMS data updated October 2, 2026).
- 10040 N 43rd Ave, 2bGlendale, AZ 85302 (623) 842‑9375
Specialties
- Family Practiceprimary
Other family doctors in Glendale
Clinicians with the same Medicare primary specialty in Glendale, AZ — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Albany Medical College Of Union University |
| Graduation year | 1982 (44 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1538380290 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians