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Emergency Medicine

Alexandra Seeley, MD

Works at hospitals in Riverview, FL · Tampa, FL · Carlisle, PA · Florida, Pennsylvania

Summary

Dr. Alexandra Seeley, MD is an emergency medicine doctor at 361 Alexander Spring Rd, Carlisle, PA 17015. Phone: (717) 988-0000. Accepts Medicare assignment. In 2024, Alexandra Seeley had 415 Original Medicare patients and 740 services. NPI 1538780887. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 361 Alexander Spring Rd, Carlisle, PA 17015 · Directions
  • Phone: (717) 988‑0000
  • Medicare: Accepts Medicare assignment
  • Hospitals: AdventHealth Riverview, AdventHealth Tampa, UPMC Carlisle
  • Group practice: Pinnacle Health Emergency Department Services, LLC
  • Medical school: Pennsylvania State University College Of Medicine · graduated 2020 (6 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Alexandra Seeley, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Alexandra Seeley accept Medicare assignment?
Yes. Medicare's clinician data says Alexandra Seeley 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 Alexandra Seeley see?
In 2024, CMS data shows 415 Original Medicare patients and 740 services for Alexandra Seeley. This counts Original Medicare only and measures volume, not quality.
What is Alexandra Seeley's NPI number?
1538780887. 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 Alexandra Seeley, 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 patients415
Services billed to Medicare740
Different services or procedures17
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)271 services
  2. Emergency department visit with high level of medical decision making (99285)223 services
  3. Critical care, first 30-74 minutes (99291)154 services
  4. Emergency department visit with moderate level of medical decision making (99284)56 services
  5. Emergency department visit with low level of medical decision making (99283)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%
  • Arthritis64%
  • Diabetes53%
  • Depression53%
  • Anxiety53%

Hospitals where Alexandra Seeley works

Medicare's Facility Affiliation Data lists Alexandra Seeley 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.

  • AdventHealth RiverviewRiverview, FL · Acute Care Hospital · Emergency services: listed by Medicare · CCN 100364
  • AdventHealth TampaTampa, FL · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 100173
  • UPMC CarlisleCarlisle, PA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 390058

Practice locations

Addresses where Alexandra Seeley is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Alexandra Seeley as a member of this group (CMS data updated October 2, 2026).

  • Pinnacle Health Emergency Department Services, LLC107 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Pennsylvania →

Other emergency medicine doctors in Carlisle

Clinicians with the same Medicare primary specialty in Carlisle, PA — not a recommendation.

All emergency medicine doctors in Carlisle →

Other clinicians in Pinnacle Health Emergency Department Services, LLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolPennsylvania State University College Of Medicine
Graduation year2020 (6 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1538780887
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians