Alan A. London, MD

Medicare activity in 2024

Official CMS public-use data for Alan A. London, 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. New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)79 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)31 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%
• Arthritis38%
• Ischemic heart disease27%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)27%
• Diabetes24%

Hospitals where Alan A. London works

Medicare's Facility Affiliation Data lists Alan A. London 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.

• Baylor Scott & White Medical Center - FriscoFrisco, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450853
• Medical City PlanoPlano, TX · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 450651
• Methodist McKinney HospitalMcKinney, TX · Acute Care Hospital · Emergency services: listed by Medicare · CCN 670069

Practice locations

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

• 4001 W 15th St, Suite 335Plano, TX 75093 (972) 596‑5225

Group practices

Medicare enrollment lists Alan A. London as a member of this group (CMS data updated October 2, 2026).

• Surgical Associates of Collin County, PLLC2 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in Texas →

Other general surgeons in Plano

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

• Michael Sutker, MD
• Satya S. Dalavayi, MD
• Robert M. Hoyle, MD
• Muhammad U. Butt, MD
• Dean A. Cione, MD
• Mikko P. Tauriainen, MD
• Terre Q. Quinn, MD
• Aaron S. Bransky, MD

All general surgeons in Plano →

Other clinicians in Surgical Associates of Collin County, PLLC

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

• Sheetal M. Patel, 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