Quick answers
- Does Maria S. Earl accept Medicare assignment?
- Yes. Medicare's clinician data says Maria S. Earl 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 Maria S. Earl see?
- In 2024, CMS data shows 125 Original Medicare patients and 179 services for Maria S. Earl. This counts Original Medicare only and measures volume, not quality.
- What is Maria S. Earl's NPI number?
- 1558985879. 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 Maria S. Earl, 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 | 125 |
|---|---|
| Services billed to Medicare | 179 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)35 services
- Anesthesia for procedure for total knee joint replacement (01402)34 services
- Anesthesia for total hip replacement (01214)20 services
- Anesthesia for lens surgery (00142)19 services
- Injection of anesthetic agent and/or steroid into other nerve or branch (64450)16 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%
- Ischemic heart disease26%
- Diabetes20%
- Anxiety20%
Hospitals where Maria S. Earl works
Medicare's Facility Affiliation Data lists Maria S. Earl 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.
- Abrazo Scottsdale CampusPhoenix, AZ · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 030083
Practice locations
Addresses where Maria S. Earl is enrolled with Medicare (CMS data updated October 2, 2026).
- 10541 W Thunderbird BlvdSun City, AZ 85351 (623) 933‑3402
- 3929 E Bell RdPhoenix, AZ 85032 (623) 923‑5000
Group practices
Medicare enrollment lists Maria S. Earl as a member of these groups (CMS data updated October 2, 2026).
- Ascend Anesthesia LLC76 clinicians in the group
- Summit Anesthesia Services PLLC40 clinicians in the group
- Summit Anesthesia Partners33 clinicians in the group
- VS Anesthesia Services PLLC9 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Arizona →
Other nurse anesthetists in Sun City
Clinicians with the same Medicare primary specialty in Sun City, AZ — not a recommendation.
Other clinicians in Ascend Anesthesia LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 2020 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1558985879 |
| 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