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Hospitalist

Lawrence L. Yen, MD

Works at hospitals in Los Angeles, CA · California

Summary

Dr. Lawrence L. Yen, MD is a hospitalist at 8700 Beverly Blvd, West Hollywood, CA 90048. Phone: (310) 423-3277. Accepts Medicare assignment. In 2024, Lawrence L. Yen had 197 Original Medicare patients and 571 services. NPI 1336675446. 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: Hospitalist
  • Address: 8700 Beverly Blvd, West Hollywood, CA 90048 · Directions
  • Phone: (310) 423‑3277
  • Medicare: Accepts Medicare assignment
  • Hospital: Cedars-Sinai Medical Center
  • Group practice: Cedars-Sinai Medical Care Foundation
  • Medical school: graduated 2017 (9 years since medical school)
  • Gender (as listed): Male

From official Medicare data

This page shows what Medicare's official clinician data says about Lawrence L. Yen, 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 Lawrence L. Yen accept Medicare assignment?
Yes. Medicare's clinician data says Lawrence L. Yen 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 Lawrence L. Yen see?
In 2024, CMS data shows 197 Original Medicare patients and 571 services for Lawrence L. Yen. This counts Original Medicare only and measures volume, not quality.
What is Lawrence L. Yen's NPI number?
1336675446. 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 Lawrence L. Yen, 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 patients197
Services billed to Medicare571
Different services or procedures11
Participating Medicare providerYes
Average age of these patients77

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)384 services
  2. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)65 services
  3. Hospital discharge day management, more than 30 minutes (99239)62 services
  4. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)44 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%
  • Arthritis63%
  • Ischemic heart disease63%
  • Heart failure59%
  • Chronic kidney disease55%

Hospitals where Lawrence L. Yen works

Medicare's Facility Affiliation Data lists Lawrence L. Yen 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 Lawrence L. Yen is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Lawrence L. Yen as a member of this group (CMS data updated October 2, 2026).

  • Cedars-Sinai Medical Care Foundation1,692 clinicians in the group

Specialties

Find other Hospitalist doctors in California →

Other hospitalists in West Hollywood

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

All hospitalists in West Hollywood →

Other clinicians in Cedars-Sinai Medical Care Foundation

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

Clinician information

CredentialMD
Graduation year2017 (9 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1336675446
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