Quick answers
- Does Dianna L. Mahoney accept Medicare assignment?
- Yes. Medicare's clinician data says Dianna L. Mahoney 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 Dianna L. Mahoney see?
- In 2024, CMS data shows 25 Original Medicare patients and 37 services for Dianna L. Mahoney. This counts Original Medicare only and measures volume, not quality.
- What is Dianna L. Mahoney's NPI number?
- 1649372004. 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 Dianna L. Mahoney, 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 | 25 |
|---|---|
| Services billed to Medicare | 37 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 65 |
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 cholesterol60%
- Diabetes48%
- Arthritis44%
Hospitals where Dianna L. Mahoney works
Medicare's Facility Affiliation Data lists Dianna L. Mahoney 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.
- Whiteriver PHS Indian HospitalWhiteriver, AZ · Acute Care Hospital · Emergency services: not listed by Medicare · CCN 030113
Practice locations
Addresses where Dianna L. Mahoney is enrolled with Medicare (CMS data updated October 2, 2026).
- 200 W Hospital DrWhiteriver, AZ 85941
- N Cromwell Rd, Cibecue Health CtrCebecue, AZ 85911
- PO Box, Suite 860Whiteriver, AZ 85941
Group practices
Medicare enrollment lists Dianna L. Mahoney as a member of this group (CMS data updated October 2, 2026).
- DHHS IHS Phoenix Area71 clinicians in the group
Specialties
- Family Practiceprimary
- Obstetrics/Gynecologyalso
Other family doctors in Whiteriver
Clinicians with the same Medicare primary specialty in Whiteriver, AZ — not a recommendation.
Other clinicians in DHHS IHS Phoenix Area
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Arizona College Of Medicine |
| Graduation year | 1997 (29 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1649372004 |
| 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