Quick answers
- Does Tammy L. McGuinn accept Medicare assignment?
- Yes. Medicare's clinician data says Tammy L. McGuinn 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 Tammy L. McGuinn see?
- In 2024, CMS data shows 116 Original Medicare patients and 392 services for Tammy L. McGuinn. This counts Original Medicare only and measures volume, not quality.
- What is Tammy L. McGuinn's NPI number?
- 1083048193. 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 Tammy L. McGuinn, 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 | 116 |
|---|---|
| Services billed to Medicare | 392 |
| Different services or procedures | 5 |
| Participating Medicare provider | Yes |
| Average age of these patients | 79 |
Most frequent services
- Advance care planning, first 30 minutes (99497)156 services
- Advance care planning, each additional 30 minutes (99498)118 services
- Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)113 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%
- Heart failure69%
- Chronic kidney disease66%
- Ischemic heart disease58%
- Arthritis57%
Hospitals where Tammy L. McGuinn works
Medicare's Facility Affiliation Data lists Tammy L. McGuinn 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.
- WellSpan York HospitalYork, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390046
Practice locations
Addresses where Tammy L. McGuinn is enrolled with Medicare (CMS data updated October 2, 2026).
- 1001 S George StYork, PA 17403 (717) 851‑3467
- 112 N 7th St, Wellspan Palliative and Supportive CareChambersburg, PA 17201 (717) 262‑4546
Group practices
Medicare enrollment lists Tammy L. McGuinn as a member of this group (CMS data updated October 2, 2026).
- Good Samaritan Physician Services102 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in York
Clinicians with the same Medicare primary specialty in York, PA — not a recommendation.
Other clinicians in Good Samaritan Physician Services
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1083048193 |
| 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