Quick answers
- Does Chet S. Monder accept Medicare assignment?
- Yes. Medicare's clinician data says Chet S. Monder accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Chet S. Monder see?
- In 2024, CMS data shows 245 Original Medicare patients and 9,414 services for Chet S. Monder. This counts Original Medicare only and measures volume, not quality.
- What is Chet S. Monder's NPI number?
- 1427015346. 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 Chet S. Monder, 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 | 245 |
|---|---|
| Services billed to Medicare | 9,414 |
| Different services or procedures | 41 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)413 services
- Insertion of needle into vein for collection of blood sample (36415)254 services
- Blood test, thyroid stimulating hormone (tsh) (84443)174 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)167 services
- Blood test, comprehensive group of blood chemicals (80053)163 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 cholesterol75%
- High blood pressure73%
- Arthritis47%
- Diabetes40%
- Osteoporosis32%
- Chronic kidney disease31%
Practice locations
Addresses where Chet S. Monder is enrolled with Medicare (CMS data updated October 2, 2026).
- 15640 N 28th DrPhoenix, AZ 85053 (602) 439‑9623
Group practices
Medicare enrollment lists Chet S. Monder as a member of this group (CMS data updated October 2, 2026).
- Arizona Endocrinology Center PLC10 clinicians in the group
Specialties
- Endocrinologyprimary
Other endocrinologists in Phoenix
Clinicians with the same Medicare primary specialty in Phoenix, AZ — not a recommendation.
Other clinicians in Arizona Endocrinology Center PLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1980 (46 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1427015346 |
| 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