Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Emergency Medicine

Lauren M. Segal, DO

Works at hospitals in San Diego, CA · California

Summary

Dr. Lauren M. Segal, DO is an emergency medicine doctor at 200 W Arbor Dr, San Diego, CA 92103. Phone: (858) 657-7000. Accepts Medicare assignment. In 2024, Lauren M. Segal had 305 Original Medicare patients and 341 services. NPI 1013278431. 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: 200 W Arbor Dr, San Diego, CA 92103 · Directions (1 more location)
  • Phone: (858) 657‑7000
  • Medicare: Accepts Medicare assignment
  • Hospital: UC San Diego Health Hillcrest - Hillcrest Medical Center
  • Group practice: Regents of the University of California
  • Medical school: Lake Erie College Of Osteopathic Medicine, Erie · graduated 2012 (14 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Lauren M. Segal, 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 Lauren M. Segal accept Medicare assignment?
Yes. Medicare's clinician data says Lauren M. Segal 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 Lauren M. Segal see?
In 2024, CMS data shows 305 Original Medicare patients and 341 services for Lauren M. Segal. This counts Original Medicare only and measures volume, not quality.
What is Lauren M. Segal's NPI number?
1013278431. 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 Lauren M. Segal, 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 patients305
Services billed to Medicare341
Different services or procedures20
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)148 services
  2. Critical care, first 30-74 minutes (99291)76 services
  3. Emergency department visit with moderate level of medical decision making (99284)75 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 cholesterol74%
  • Arthritis51%
  • Diabetes46%
  • Chronic kidney disease43%
  • Anxiety38%

Hospitals where Lauren M. Segal works

Medicare's Facility Affiliation Data lists Lauren M. Segal 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 Lauren M. Segal is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Regents of the University of California2,089 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 Regents of the University of California

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

Clinician information

CredentialDO
Medical schoolLake Erie College Of Osteopathic Medicine, Erie
Graduation year2012 (14 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1013278431
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