Quick answers
- Does Nathan M. Ostler accept Medicare assignment?
- Yes. Medicare's clinician data says Nathan M. Ostler 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 Nathan M. Ostler see?
- In 2024, CMS data shows 97 Original Medicare patients and 1,142 services for Nathan M. Ostler. This counts Original Medicare only and measures volume, not quality.
- What is Nathan M. Ostler's NPI number?
- 1023412301. 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 Nathan M. Ostler, 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 | 97 |
|---|---|
| Services billed to Medicare | 1,142 |
| Different services or procedures | 25 |
| 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)392 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)328 services
- Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)223 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)32 services
- Annual, face-to-face intensive behavioral therapy for cardiovascular disease, individual, 15 minutes (G0446)31 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 cholesterol73%
- Arthritis48%
- Ischemic heart disease26%
- Anxiety26%
- Chronic kidney disease25%
Practice locations
Addresses where Nathan M. Ostler is enrolled with Medicare (CMS data updated October 2, 2026).
- 4111 E Valley Auto Dr, Suite 209Mesa, AZ 85206 (480) 939‑3409
Group practices
Medicare enrollment lists Nathan M. Ostler as a member of this group (CMS data updated October 2, 2026).
- Healthcare Delivered LLC2 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Mesa
Clinicians with the same Medicare primary specialty in Mesa, AZ — not a recommendation.
Other clinicians in Healthcare Delivered LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2014 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1023412301 |
| 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