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Emergency Medicine

Leslie A. Crosby, MD

Works at hospitals in Phoenixville, PA · Pottstown, PA · Pennsylvania

Summary

Dr. Leslie A. Crosby, MD is an emergency medicine doctor at 140 Nutt Rd, Telemedicine Phoenixville Thmg, Phoenixville, PA 19460. Phone: (610) 983-1100. Accepts Medicare assignment. In 2024, Leslie A. Crosby had 353 Original Medicare patients and 401 services. NPI 1528629748. 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: 140 Nutt Rd, Telemedicine Phoenixville Thmg, Phoenixville, PA 19460 · Directions (1 more location)
  • Phone: (610) 983‑1100
  • Medicare: Accepts Medicare assignment
  • Hospitals: Phoenixville Hospital, Pottstown Hospital
  • Group practice: Phoenixville Clinic Company LLC (+1 more)
  • Medical school: Temple University School Of Medicine · graduated 2019 (7 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Leslie A. Crosby, 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 Leslie A. Crosby accept Medicare assignment?
Yes. Medicare's clinician data says Leslie A. Crosby 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 Leslie A. Crosby see?
In 2024, CMS data shows 353 Original Medicare patients and 401 services for Leslie A. Crosby. This counts Original Medicare only and measures volume, not quality.
What is Leslie A. Crosby's NPI number?
1528629748. 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 Leslie A. Crosby, 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 patients353
Services billed to Medicare401
Different services or procedures22
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)148 services
  2. Critical care, first 30-74 minutes (99291)105 services
  3. Emergency department visit with moderate level of medical decision making (99284)90 services
  4. Emergency department visit with low level of medical decision making (99283)30 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%
  • Arthritis58%
  • Anxiety44%
  • Chronic kidney disease44%
  • Depression43%

Hospitals where Leslie A. Crosby works

Medicare's Facility Affiliation Data lists Leslie A. Crosby 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.

  • Phoenixville HospitalPhoenixville, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390127
  • Pottstown HospitalPottstown, PA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 390123

Practice locations

Addresses where Leslie A. Crosby is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Leslie A. Crosby as a member of these groups (CMS data updated October 2, 2026).

  • Phoenixville Clinic Company LLC134 clinicians in the group
  • Pottstown Clinic Company LLC111 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Pennsylvania →

Other emergency medicine doctors in Phoenixville

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

All emergency medicine doctors in Phoenixville →

Other clinicians in Phoenixville Clinic Company LLC

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

Clinician information

CredentialMD
Medical schoolTemple University School Of Medicine
Graduation year2019 (7 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1528629748
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