Lisa M. Knowlton, MD

Medicare activity in 2024

Official CMS public-use data for Lisa M. Knowlton, 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. Critical care, first 30-74 minutes (99291)215 services
2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)198 services
3. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)48 services
4. Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)41 services
5. Hospital discharge day management, 30 minutes or less (99238)27 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%
• Ischemic heart disease46%
• Chronic kidney disease44%
• Diabetes42%
• Arthritis41%

Hospitals where Lisa M. Knowlton works

Medicare's Facility Affiliation Data lists Lisa M. Knowlton 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

Practice locations

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

• 170 Alameda De Las PulgasRedwood City, CA 94062 (650) 369‑5811
• 300 Pasteur DrStanford, CA 94305 (650) 723‑4000

Group practices

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

• Stanford Health Care3,122 clinicians in the group

Specialties

• General Surgeryprimary

Find other General Surgery doctors in California →

Other general surgeons in Redwood City

Clinicians with the same Medicare primary specialty in Redwood City, CA — not a recommendation.

• Grace S. Tay, MD
• Sanjoy K. Dutta, MD
• Natalie C. Ku, MD
• Lillian L. Tsai, MD
• Brendan C. Visser, MD
• Jerry C. Tsai, MD
• David M. Le, MD
• Fawzi Khayat

All general surgeons in Redwood City →

Other clinicians in Stanford Health Care

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

• Bethlehem D. Mekonnen, MD
• Margarita A. Huober, NP
• Michael F. Gensheimer, MD
• Janet M. Hall, NP
• Catherine C. Arima, NP
• Dale K. Jamison, 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