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Internal Medicine

Rebecca K. Lee, DO

Works at hospitals in Torrance, CA · California

Summary

Dr. Rebecca K. Lee, DO is an internal medicine doctor at 4101 Torrance Blvd, Torrance, CA 90503. Phone: (310) 303-7496. Accepts Medicare assignment. In 2024, Rebecca K. Lee had 198 Original Medicare patients and 652 services. NPI 1417482688. 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: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 4101 Torrance Blvd, Torrance, CA 90503 · Directions
  • Phone: (310) 303‑7496
  • Medicare: Accepts Medicare assignment
  • Hospital: Providence Little Company of Mary Medical Center Torrance
  • Group practice: Providence Medical Institute
  • Medical school: New York College Of Osteo Medicine Of New York Institute Of Technology · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Rebecca K. Lee, 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 Rebecca K. Lee accept Medicare assignment?
Yes. Medicare's clinician data says Rebecca K. Lee 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 Rebecca K. Lee see?
In 2024, CMS data shows 198 Original Medicare patients and 652 services for Rebecca K. Lee. This counts Original Medicare only and measures volume, not quality.
What is Rebecca K. Lee's NPI number?
1417482688. 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 Rebecca K. Lee, 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 patients198
Services billed to Medicare652
Different services or procedures9
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)273 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)157 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)80 services
  4. Hospital discharge day management, more than 30 minutes (99239)80 services
  5. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)49 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%
  • Arthritis59%
  • Chronic kidney disease57%
  • Heart failure52%
  • Diabetes51%

Hospitals where Rebecca K. Lee works

Medicare's Facility Affiliation Data lists Rebecca K. Lee 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 Rebecca K. Lee is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Rebecca K. Lee as a member of this group (CMS data updated October 2, 2026).

  • Providence Medical Institute288 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Torrance

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

All internal medicine doctors in Torrance →

Other clinicians in Providence Medical Institute

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

Clinician information

CredentialDO
Medical schoolNew York College Of Osteo Medicine Of New York Institute Of Technology
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1417482688
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