Quick answers
- Does Maggie A. Weissman accept Medicare assignment?
- Yes. Medicare's clinician data says Maggie A. Weissman 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 Maggie A. Weissman see?
- In 2024, CMS data shows 100 Original Medicare patients and 208 services for Maggie A. Weissman. This counts Original Medicare only and measures volume, not quality.
- What is Maggie A. Weissman's NPI number?
- 1336665082. 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 Maggie A. Weissman, 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 | 100 |
|---|---|
| Services billed to Medicare | 208 |
| Different services or procedures | 9 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Diagnostic exam of nasal passages using an endoscope (31231)61 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)35 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)29 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)27 services
- Dilation of nasal sinus using an endoscope (31295)22 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 cholesterol72%
- High blood pressure59%
- Arthritis46%
- Atrial fibrillation20%
- Diabetes19%
- Ischemic heart disease19%
Practice locations
Addresses where Maggie A. Weissman is enrolled with Medicare (CMS data updated October 2, 2026).
- 1360 Pabst Farms Cir, Suite BOconomowoc, WI 53066 (888) 938‑3838
- 2885 N Mayfair RdMilwaukee, WI 53222 (888) 938‑3838
Group practices
Medicare enrollment lists Maggie A. Weissman as a member of this group (CMS data updated October 2, 2026).
- Advanced Ear Nose and Throat Specialists, SC33 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Oconomowoc
Clinicians with the same Medicare primary specialty in Oconomowoc, WI — not a recommendation.
Other clinicians in Advanced Ear Nose and Throat Specialists, SC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Graduation year | 2017 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336665082 |
| 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