Quick answers
- Does Margaret J. Ahrens accept Medicare assignment?
- Yes. Medicare's clinician data says Margaret J. Ahrens 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 Margaret J. Ahrens see?
- In 2024, CMS data shows 155 Original Medicare patients and 315 services for Margaret J. Ahrens. This counts Original Medicare only and measures volume, not quality.
- What is Margaret J. Ahrens's NPI number?
- 1487009072. 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 Margaret J. Ahrens, 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 | 155 |
|---|---|
| Services billed to Medicare | 315 |
| Different services or procedures | 65 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)50 services
- Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)27 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)23 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)17 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)15 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 blood pressure75%
- High cholesterol75%
- Arthritis43%
- Chronic kidney disease40%
- Diabetes39%
- Ischemic heart disease38%
Hospitals where Margaret J. Ahrens works
Medicare's Facility Affiliation Data lists Margaret J. Ahrens 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.
- UPMC LititzLititz, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390068
- WellSpan Chambersburg HospitalChambersburg, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390151
Practice locations
Addresses where Margaret J. Ahrens is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 7; the Medicare profile lists all.
- 1500 Highlands DrLititz, PA 17543
- 1575 Highlands DrLititz, PA 17543
- 2101 Embassy Dr, Surgical Specialists UPMCLancaster, PA 17603 (717) 735‑7410
- 2501 N 3rd St, Kline Health Center Foot and AnkleHarrisburg, PA 17110 (717) 782‑2100
- 2501 N 3rd St 2nd Fl Kline Hc, Reach ProgramHarrisburg, PA 17110 (717) 782‑2363
Group practices
Medicare enrollment lists Margaret J. Ahrens as a member of this group (CMS data updated October 2, 2026).
- Pinnacle Health Medical Services1,019 clinicians in the group
Specialties
- General Surgeryprimary
Other general surgeons in Pennsylvania
Clinicians with the same Medicare primary specialty in Pennsylvania — not a recommendation.
Other clinicians in Pinnacle Health Medical Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2016 (10 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1487009072 |
| 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