Quick answers
- Does Marcia M. McMahon accept Medicare assignment?
- Yes. Medicare's clinician data says Marcia M. McMahon 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 Marcia M. McMahon see?
- In 2024, CMS data shows 170 Original Medicare patients and 171 services for Marcia M. McMahon. This counts Original Medicare only and measures volume, not quality.
- What is Marcia M. McMahon's NPI number?
- 1487611729. 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 Marcia M. McMahon, 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 | 170 |
|---|---|
| Services billed to Medicare | 171 |
| Different services or procedures | 25 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Anesthesia for procedure for total knee joint replacement (01402)35 services
- Anesthesia for exam of colon using an endoscope (00812)25 services
- Anesthesia for total hip replacement (01214)19 services
- Anesthesia for other procedure on top of arm bone and shoulder joint (01630)16 services
- Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (00731)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).
- High cholesterol75%
- High blood pressure71%
- Arthritis69%
- Diabetes24%
- Anxiety20%
- Ischemic heart disease17%
Practice locations
Addresses where Marcia M. McMahon is enrolled with Medicare (CMS data updated October 2, 2026).
- 10500 Montgomery RdMontgomery, OH 45242 (513) 865‑1111
- 2925 Vernon Pl, Suite 101Cincinnati, OH 45219 (513) 872‑4541
- 4746 Montgomery Rd, Suite 100Norwood, OH 45212 (513) 731‑5600
Group practices
Medicare enrollment lists Marcia M. McMahon as a member of these groups (CMS data updated October 2, 2026).
- Anesthesia Group Practice Inc401 clinicians in the group
- Ogi Anesthesia, LLC36 clinicians in the group
Specialties
Find other clinicians: Certified Registered Nurse Anesthetist (CRNA), Ohio →
Other nurse anesthetists in Montgomery
Clinicians with the same Medicare primary specialty in Montgomery, OH — not a recommendation.
Other clinicians in Anesthesia Group Practice Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNA |
|---|---|
| Graduation year | 1997 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487611729 |
| 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