Quick answers
- Does Mary Ann P. McMahon accept Medicare assignment?
- Yes. Medicare's clinician data says Mary Ann P. 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 Mary Ann P. McMahon see?
- In 2024, CMS data shows 212 Original Medicare patients and 649 services for Mary Ann P. McMahon. This counts Original Medicare only and measures volume, not quality.
- What is Mary Ann P. McMahon's NPI number?
- 1699773416. 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 Mary Ann P. 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 | 212 |
|---|---|
| Services billed to Medicare | 649 |
| Different services or procedures | 26 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)166 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)125 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)103 services
- Administration of influenza virus vaccine (G0008)63 services
- Influenza vaccine split virus, preservative free (90662)62 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 pressure70%
- Arthritis35%
- Ischemic heart disease27%
- Anxiety21%
- Osteoporosis20%
Hospitals where Mary Ann P. McMahon works
Medicare's Facility Affiliation Data lists Mary Ann P. McMahon 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.
- Cooper University HospitalCamden, NJ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 310014
- Virtua Our Lady of Lourdes HospitalCamden, NJ · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 310029
Practice locations
Addresses where Mary Ann P. McMahon is enrolled with Medicare (CMS data updated October 2, 2026).
- 1816 Mount Holly Rd, Suite 102Burlington, NJ 08016 (856) 536‑1515
Group practices
Medicare enrollment lists Mary Ann P. McMahon as a member of this group (CMS data updated October 2, 2026).
- Cooper Care Alliance, PC118 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Burlington
Clinicians with the same Medicare primary specialty in Burlington, NJ — not a recommendation.
Other clinicians in Cooper Care Alliance, PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Jefferson Medical College Of Thomas Jefferson University |
| Graduation year | 2000 (26 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1699773416 |
| 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