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

Hematology/Oncology

David R. Oveisi, MD

Works at hospitals in Los Angeles, CA · California

Summary

Dr. David R. Oveisi, MD is a hematologist-oncologist at 8700 Beverly Blvd, West Hollywood, CA 90048. Accepts Medicare assignment. In 2024, David R. Oveisi had 187 Original Medicare patients and 747 services. NPI 1386006369. 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: Hematologist-oncologist (Medicare lists Hematology/Oncology)
  • Address: 8700 Beverly Blvd, West Hollywood, CA 90048 · Directions
  • Medicare: Accepts Medicare assignment
  • Hospital: Cedars-Sinai Medical Center
  • Group practice: Cedars-Sinai Medical Center
  • Medical school: University Of Connecticut School Of Medicine · graduated 2016 (10 years since medical school)
  • Gender (as listed): Male
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about David R. Oveisi, 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 David R. Oveisi accept Medicare assignment?
Yes. Medicare's clinician data says David R. Oveisi 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 David R. Oveisi see?
In 2024, CMS data shows 187 Original Medicare patients and 747 services for David R. Oveisi. This counts Original Medicare only and measures volume, not quality.
What is David R. Oveisi's NPI number?
1386006369. 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 David R. Oveisi, 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 patients187
Services billed to Medicare747
Different services or procedures14
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)250 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)208 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)80 services
  4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)73 services
  5. Telephone medical discussion with physician, 11-20 minutes (99442)64 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 cholesterol73%
  • Chronic kidney disease55%
  • Arthritis51%
  • Ischemic heart disease47%
  • Diabetes39%

Hospitals where David R. Oveisi works

Medicare's Facility Affiliation Data lists David R. Oveisi 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 David R. Oveisi is enrolled with Medicare (CMS data updated October 2, 2026).

  • 8700 Beverly BlvdWest Hollywood, CA 90048

Group practices

Medicare enrollment lists David R. Oveisi as a member of this group (CMS data updated October 2, 2026).

  • Cedars-Sinai Medical Center799 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in California →

Other hematologist-oncologists in West Hollywood

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

All hematologist-oncologists in West Hollywood →

Other clinicians in Cedars-Sinai Medical Center

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

Clinician information

CredentialMD
Medical schoolUniversity Of Connecticut School Of Medicine
Graduation year2016 (10 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1386006369
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