Hallie A. Metz, MD

Medicare activity in 2024

Official CMS public-use data for Hallie A. Metz, 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. Hospital discharge day management, more than 30 minutes (99239)206 services
2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)151 services
3. Emergency department visit with high level of medical decision making (99285)101 services
4. Electrocardiogram (ecg) 1 to 3 leads with review by physician only (93042)98 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)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 blood pressure75%
• High cholesterol75%
• Arthritis60%
• Ischemic heart disease44%
• Anxiety39%
• Depression38%

Hospitals where Hallie A. Metz works

Medicare's Facility Affiliation Data lists Hallie A. Metz 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 Hallie A. Metz is enrolled with Medicare (CMS data updated October 2, 2026).

• 23625 Holman HwyMonterey, CA 93940 (831) 625‑4900

Group practices

Medicare enrollment lists Hallie A. Metz as a member of these groups (CMS data updated October 2, 2026).

• Community Hospital of the Monterey Peninsula146 clinicians in the group
• Monterey Bay Observation Medicine34 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Monterey

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

• Stephanie C. Gardner, MD
• Michelle A. Krueger-Kalinski, MD
• Rory M. Smith, DO
• Roderick C. Roxas, MD
• Brannon P. Peralta, MD
• Andrew Ortega, MD
• John M. Ellison, MD
• Robert P. Collins, MD

All emergency medicine doctors in Monterey →

Other clinicians in Community Hospital of the Monterey Peninsula

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

• Jaya Prakash Sugunaraj, MD
• Pablo Davanzo, MD
• Jayme Rock-Willoughby, DO
• Stephanie C. Gardner, MD
• Soteria Karahalios, MD
• Christian Hansen, 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