Quick answers
- Does Nicolas J. Zastrow accept Medicare assignment?
- Yes. Medicare's clinician data says Nicolas J. Zastrow 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 Nicolas J. Zastrow see?
- In 2024, CMS data shows 383 Original Medicare patients and 9,114 services for Nicolas J. Zastrow. This counts Original Medicare only and measures volume, not quality.
- What is Nicolas J. Zastrow's NPI number?
- 1972797173. 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 Nicolas J. Zastrow, 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 | 383 |
|---|---|
| Services billed to Medicare | 9,114 |
| Different services or procedures | 43 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Hyaluronan or derivative, durolane, for intra-articular injection, 1 mg (J7318)6,540 services
- Injection, triamcinolone acetonide, not otherwise specified, 10 mg (J3301)918 services
- X-ray of knee, 4 or more views (73564)232 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)189 services
- Aspiration and/or injection of fluid large joint using ultrasound guidance (20611)120 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%
- Arthritis75%
- High blood pressure74%
- Anxiety29%
- Ischemic heart disease23%
- Depression23%
Hospitals where Nicolas J. Zastrow works
Medicare's Facility Affiliation Data lists Nicolas J. Zastrow at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Honor Health John C. Lincoln Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030014
- HonorHealth Deer Valley Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030092
- HonorHealth Sonoran Crossing Medical CenterPhoenix, AZ · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 030146
Practice locations
Addresses where Nicolas J. Zastrow is enrolled with Medicare (CMS data updated October 2, 2026).
- 10510 N 92nd StScottsdale, AZ 85258
- 19636 N 27th Ave, Suite 201Phoenix, AZ 85027 (623) 516‑4400
- 33423 N 32nd AvePhoenix, AZ 85085
Group practices
Medicare enrollment lists Nicolas J. Zastrow as a member of this group (CMS data updated October 2, 2026).
- HonorHealth Ambulatory630 clinicians in the group
Specialties
- Physician Assistantprimary
Other physician assistants in Scottsdale
Clinicians with the same Medicare primary specialty in Scottsdale, AZ — not a recommendation.
Other clinicians in HonorHealth Ambulatory
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2005 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1972797173 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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