Quick answers
- Does Lisa K. Higa accept Medicare assignment?
- Yes. Medicare's clinician data says Lisa K. Higa 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 Lisa K. Higa see?
- In 2024, CMS data shows 468 Original Medicare patients and 944 services for Lisa K. Higa. This counts Original Medicare only and measures volume, not quality.
- What is Lisa K. Higa's NPI number?
- 1669583167. 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 Lisa K. Higa, 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 patients | 468 |
|---|---|
| Services billed to Medicare | 944 |
| Different services or procedures | 14 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)393 services
- Biopsy of large bowel using a flexible endoscope (45380)180 services
- New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)107 services
- Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)93 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)75 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 cholesterol75%
- High blood pressure56%
- Arthritis43%
- Osteoporosis34%
- Anxiety21%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)20%
Hospitals where Lisa K. Higa works
Medicare's Facility Affiliation Data lists Lisa K. Higa 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.
- Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050043
- Alta Bates Summit Medical Center - Alta Bates CampBerkeley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050305
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050180
Practice locations
Addresses where Lisa K. Higa is enrolled with Medicare (CMS data updated October 2, 2026).
- 1505 Saint Alphonsus WayAlamo, CA 94507 (925) 932‑6330
- 2637 Shadelands DrWalnut Creek, CA 94598
- 365 Lennon LnWalnut Creek, CA 94598
Group practices
Medicare enrollment lists Lisa K. Higa as a member of this group (CMS data updated October 2, 2026).
- Bass Medical Group291 clinicians in the group
Specialties
- Gastroenterologyprimary
- Internal Medicinealso
Other gastroenterologists in Alamo
Clinicians with the same Medicare primary specialty in Alamo, CA — not a recommendation.
Other clinicians in Bass Medical Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Hahnemann University College Of Medicine |
| Graduation year | 1991 (35 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1669583167 |
| Corrections | Report 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians