Margaret L. Pfeiffer, MD

Medicare activity in 2024

Official CMS public-use data for Margaret L. Pfeiffer, 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.

Most frequent services

1. Injection, onabotulinumtoxina, 1 unit (J0585)4,772 services
2. Photography of content of eyes (92285)285 services
3. Exam of visual field with limited testing (92081)165 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)150 services
5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)131 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%
• Arthritis49%
• Ischemic heart disease31%
• Diabetes28%
• Anxiety21%

Hospitals where Margaret L. Pfeiffer works

Medicare's Facility Affiliation Data lists Margaret L. Pfeiffer 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.

• Texas Health Presbyterian Hospital DallasDallas, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450462

Practice locations

Addresses where Margaret L. Pfeiffer is enrolled with Medicare (CMS data updated October 2, 2026).

• 3060 Communications PkwyPlano, TX 75093 (214) 754‑0000
• 910 N Davis Dr, Suite 400 Key Whitman Eye CenterArlington, TX 76012 (214) 754‑0000

Group practices

Medicare enrollment lists Margaret L. Pfeiffer as a member of this group (CMS data updated October 2, 2026).

• JW Eye Associates, PLLC36 clinicians in the group

Specialties

• Ophthalmologyprimary

Find other Ophthalmology doctors in Texas →

Other ophthalmologists in Plano

Clinicians with the same Medicare primary specialty in Plano, TX — not a recommendation.

• David C. Lu, MD
• Robert E. Torti Ii, MD
• George E. Joseph, MD
• Michelle L. Brochner, MD
• Matthew Adams, MD
• Lewis J. Frazee, MD
• Brandon C. Lam, MD
• Ellen Ngo, MD

All ophthalmologists in Plano →

Other clinicians in JW Eye Associates, PLLC

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

• Gregory B. Kloesel, OD
• Kimberly S. Warren, MD
• Mark T. Stephens, MD
• Ronald M. Barke, MD
• Julio Albarracin, MD
• Larry Fish, MD

Clinician information

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