Charlotte M. Carlson, MD

Medicare activity in 2024

Official CMS public-use data for Charlotte M. Carlson, 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 high level of medical decision making, if using time, 40 minutes or more (99215)348 services
2. Telephone medical discussion with physician, 21-30 minutes (99443)290 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)138 services
4. Telephone medical discussion with physician, 11-20 minutes (99442)72 services
5. Administration of influenza virus vaccine (G0008)57 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%
• Arthritis56%
• Depression41%
• Chronic kidney disease38%
• Ischemic heart disease35%

Hospitals where Charlotte M. Carlson works

Medicare's Facility Affiliation Data lists Charlotte M. Carlson 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.

• Providence Santa Rosa Memorial HospitalSanta Rosa, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050174
• 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 Charlotte M. Carlson is enrolled with Medicare (CMS data updated October 2, 2026).

• 2455 Summerfield RdSanta Rosa, CA 95405 (707) 523‑2666

Group practices

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

• Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

• Geriatric Medicineprimary

Find other Geriatric Medicine doctors in California →

Other geriatricians in California

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

• David A. Greene, MD
• Kateri Murray, MD
• Tomonao Hashimoto, MD
• Daniel Cardenal Castro, MD
• Zaldy Tan
• Maurice J. Turner, MD
• Katrina I. Deleon, MD
• Katalin Danji, MD

All geriatricians in California →

Other clinicians in Sutter Bay Medical Foundation

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

• Kahee Jo, MD
• Kalpna R. Munzni, MD
• Punam Bhullar, MD
• Suzette H. Han, NP
• Diana Hess, MD
• Vipul Gupta, 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