Jayme Rock-Willoughby, DO

Medicare activity in 2024

Official CMS public-use data for Jayme Rock-Willoughby, 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. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)1,243 services
2. Ultrasound of heart with color-depicted blood flow, rate, direction and valve function (93306)691 services
3. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)397 services
4. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)272 services
5. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)203 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%
• Arthritis51%
• Ischemic heart disease49%
• Atrial fibrillation37%
• Heart failure32%

Hospitals where Jayme Rock-Willoughby works

Medicare's Facility Affiliation Data lists Jayme Rock-Willoughby 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
• Stanford Health CareStanford, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050441

Practice locations

Addresses where Jayme Rock-Willoughby is enrolled with Medicare (CMS data updated October 2, 2026).

• 2 Upper Ragsdale Dr, Bldg AMonterey, CA 93940 (831) 718‑9701
• 23625 Holman HwyMonterey, CA 93940 (831) 624‑5311
• 30 Garden Ct, BMonterey, CA 93940 (831) 647‑1123

Group practices

Medicare enrollment lists Jayme Rock-Willoughby as a member of these groups (CMS data updated October 2, 2026).

• Community Hospital of the Monterey Peninsula146 clinicians in the group
• Montage Medical Group127 clinicians in the group

Specialties

• Cardiovascular Disease (Cardiology)primary
• Internal Medicinealso

Find other Cardiovascular Disease (Cardiology) doctors in California →

Other cardiologists in Monterey

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

• Larry E. Berte, MD
• Steven M. Lome, DO
• Diane Sobkowicz, MD
• Thomas A. Kehl, MD
• Michael A. Plainse, MD
• Richard J. Gray, MD
• Michael Jesinger, MD

All cardiologists in Monterey →

Other clinicians in Community Hospital of the Monterey Peninsula

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

• Dana L. McDermott, DO
• Stephanie C. Gardner, MD
• Kristen J. Snell
• Soteria Karahalios, MD
• Alexander Besser, DO
• Steven J. Fowler, 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