Quick answers
- Does Joseph M. Mahoney accept Medicare assignment?
- Yes. Medicare's clinician data says Joseph M. 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 Joseph M. Mahoney see?
- In 2024, CMS data shows 76 Original Medicare patients and 140 services for Joseph M. Mahoney. This counts Original Medicare only and measures volume, not quality.
- What is Joseph M. Mahoney's NPI number?
- 1881983666. 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 Joseph M. 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 | 76 |
|---|---|
| Services billed to Medicare | 140 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Anesthesia for procedure for total knee joint replacement (01402)22 services
- Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)20 services
- Injection of anesthetic agent and/or steroid into arm nerve bundle (brachial plexus) (64415)12 services
- Ultrasonic guidance for needle placement (76942)12 services
- Anesthesia for other procedure on forearm, wrist, or hand bones (01830)11 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).
- Arthritis75%
- High cholesterol70%
- High blood pressure59%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)22%
- Chronic kidney disease14%
Practice locations
Addresses where Joseph M. Mahoney is enrolled with Medicare (CMS data updated October 2, 2026).
- 707 SW Washington St, Suite 700Portland, OR 97205 (503) 299‑9906
Group practices
Medicare enrollment lists Joseph M. Mahoney as a member of this group (CMS data updated October 2, 2026).
- Oregon Anesthesiology Group PC232 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Portland
Clinicians with the same Medicare primary specialty in Portland, OR — not a recommendation.
Other clinicians in Oregon Anesthesiology Group PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Sanford School Of Medicine Of University Of South Dakota |
| Graduation year | 2011 (15 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1881983666 |
| 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