Lorna M. Thornton, MD

Medicare activity in 2024

Official CMS public-use data for Lorna M. Thornton, 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. Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's (G2211)309 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)275 services
3. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)164 services
4. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)155 services
5. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)132 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 cholesterol70%
• High blood pressure58%
• Arthritis36%
• Osteoporosis28%
• Ischemic heart disease23%
• Atrial fibrillation17%

Hospitals where Lorna M. Thornton works

Medicare's Facility Affiliation Data lists Lorna M. Thornton 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.

• Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441
• UCSF Medical CenterSan Francisco, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050454

Practice locations

Addresses where Lorna M. Thornton is enrolled with Medicare (CMS data updated October 2, 2026).

• 1300 Crane StMenlo Park, CA 94025 (650) 498‑6500

Group practices

Medicare enrollment lists Lorna M. Thornton as a member of this group (CMS data updated October 2, 2026).

• University Healthcare Alliance327 clinicians in the group

Specialties

• Internal Medicineprimary

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Menlo Park

Clinicians with the same Medicare primary specialty in Menlo Park, CA — not a recommendation.

• Kristen K. Sherman, MD
• Kelley M. Scott, MD
• Eliza G. Bennitt, MD
• Alan Pinyavat, MD
• Nnenna I. Nwogu, MD
• Ariadne G. Lie, MD
• Kevin Kuo, MD
• Dean J. Nickles, MD

All internal medicine doctors in Menlo Park →

Other clinicians in University Healthcare Alliance

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

• Martin Silverman, MD
• Arun Sharma, MD
• Christina R. Pagano, MD
• Ling Xu, MD
• Louise Hom, MD
• Hansaa N. Gopalakrishnan, 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