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Emergency Medicine

Zachary M. Shinar, MD

Works at hospitals in San Diego, CA · California

Summary

Dr. Zachary M. Shinar, MD is an emergency medicine doctor at 7901 Frost St, San Diego, CA 92123. Phone: (858) 939-3400. Accepts Medicare assignment. In 2024, Zachary M. Shinar had 453 Original Medicare patients and 728 services. NPI 1447376496. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 7901 Frost St, San Diego, CA 92123 · Directions
  • Phone: (858) 939‑3400
  • Medicare: Accepts Medicare assignment
  • Hospital: Sharp Memorial Hospital
  • Group practice: San Diego Emergency Physicians Inc
  • Medical school: University Of Southern California Keck School Of Medicine · graduated 2004 (22 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Zachary M. Shinar, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Zachary M. Shinar accept Medicare assignment?
Yes. Medicare's clinician data says Zachary M. Shinar accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Zachary M. Shinar see?
In 2024, CMS data shows 453 Original Medicare patients and 728 services for Zachary M. Shinar. This counts Original Medicare only and measures volume, not quality.
What is Zachary M. Shinar's NPI number?
1447376496. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Zachary M. Shinar, 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.

Original Medicare patients453
Services billed to Medicare728
Different services or procedures35
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)324 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)216 services
  3. Emergency department visit with moderate level of medical decision making (99284)70 services
  4. Critical care, first 30-74 minutes (99291)54 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%
  • Arthritis49%
  • Diabetes44%
  • Depression40%
  • Ischemic heart disease39%

Hospitals where Zachary M. Shinar works

Medicare's Facility Affiliation Data lists Zachary M. Shinar 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.

Practice locations

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

Group practices

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

  • San Diego Emergency Physicians Inc39 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in San Diego

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

All emergency medicine doctors in San Diego →

Other clinicians in San Diego Emergency Physicians Inc

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

Clinician information

CredentialMD
Medical schoolUniversity Of Southern California Keck School Of Medicine
Graduation year2004 (22 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1447376496
CorrectionsReport an error or suggest an update →

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