Zachary R. Lewton, MD

Medicare activity in 2024

Official CMS public-use data for Zachary R. Lewton, 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. Injection, onabotulinumtoxina, 1 unit (J0585)20,590 services
2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)321 services
3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)234 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)231 services
5. Injection of chemical for paralysis of facial and neck nerve muscles on both sides of face (64615)60 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 pressure64%
• Arthritis49%
• Anxiety31%
• Depression29%
• Ischemic heart disease28%

Hospitals where Zachary R. Lewton works

Medicare's Facility Affiliation Data lists Zachary R. Lewton 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.

• Adventist Health Mendocino CoastFort Bragg, CA · Critical Access Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 051325
• Adventist Health Ukiah ValleyUkiah, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050301
• Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050174
• Sutter Lakeside HospitalLakeport, CA · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 051329
• Sutter Santa Rosa Regional HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050291

Practice locations

Addresses where Zachary R. Lewton is enrolled with Medicare (CMS data updated October 2, 2026).

• 34 Mark W Springs Rd, Fl 2Santa Rosa, CA 95403 (707) 541‑7900

Group practices

Medicare enrollment lists Zachary R. Lewton as a member of this group (CMS data updated October 2, 2026).

• Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

• Neurologyprimary
• Neuropsychiatryalso
• Sleep Medicinealso

Find other Neurology doctors in California →

Other neurologists in Santa Rosa

Clinicians with the same Medicare primary specialty in Santa Rosa, CA — not a recommendation.

• Melissa A. McKenzie, DO
• Giac D. Consiglieri, MD
• J R. Mendius, MD
• Jet K. Ho, MD
• Christopher Y. Way, DO
• Afshin Mohammadi, MD
• Mahsa Eskian, MD
• Gregory Ackroyd, MD

All neurologists in Santa Rosa →

Other clinicians in Sutter Bay Medical Foundation

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

• Linda Casey, MD
• Marcia C. Peck, MD
• Vipul Gupta, MD
• Alice J. Gong, MD
• Michael Miller, DO
• Elaine D. Lee, 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