Siang L. Lo, DO

Medicare activity in 2024

Official CMS public-use data for Siang L. Lo, 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. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)752 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)255 services
3. Osteopathic manipulative treatment, 5-6 body regions (98927)248 services
4. 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)219 services
5. Injection of drug or substance under skin or into muscle (96372)133 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 pressure61%
• Arthritis38%
• Ischemic heart disease29%
• Anxiety27%
• Depression23%

Hospitals where Siang L. Lo works

Medicare's Facility Affiliation Data lists Siang L. Lo 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.

• Community Hospital of the Monterey PeninsulaMonterey, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050145

Practice locations

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

• 621 Forest AvePacific Grove, CA 93950 (831) 649‑1011
• 621 Forest Ave, Suite 1Pacific Grove, CA 93950

Group practices

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

• Pacific Grove Family Medicine Inc2 clinicians in the group

Specialties

• Family Practiceprimary
• Osteopathic Manipulative Medicinealso

Find other Family Practice doctors in California →

Other family doctors in California

Clinicians with the same Medicare primary specialty in California — not a recommendation.

• Eliot S. Light, MD
• Daniel A. Gallegos, MD
• Andrea Angelucci, DO
• Patrick J. Ryan, DO
• Gabriel Zimmerer, MD
• Tracy Dale, MD
• Steven Seizer, MD
• Sireesha I. Reddy, MD

All family doctors in California →

Other clinicians in Pacific Grove Family Medicine Inc

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

• Eliot S. Light, 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