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Internal Medicine

Leanna M. Lee, MD

Works at hospitals in Loma Linda, CA · California

Summary

Dr. Leanna M. Lee, MD is an internal medicine doctor at 11370 Anderson St, Loma Linda, CA 92354. Phone: (951) 247-5809. Accepts Medicare assignment. In 2024, Leanna M. Lee had 39 Original Medicare patients and 103 services. NPI 1598056939. 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: 11370 Anderson St, Loma Linda, CA 92354 · Directions (2 more locations)
  • Phone: (951) 247‑5809
  • Medicare: Accepts Medicare assignment
  • Hospital: Loma Linda University Medical Center
  • Group practice: Faculty Physicians and Surgeons of Llusm
  • Medical school: University Of California, Geffen School Of Medicine · graduated 2011 (15 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Leanna M. 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 Leanna M. Lee accept Medicare assignment?
Yes. Medicare's clinician data says Leanna M. 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 Leanna M. Lee see?
In 2024, CMS data shows 39 Original Medicare patients and 103 services for Leanna M. Lee. This counts Original Medicare only and measures volume, not quality.
What is Leanna M. Lee's NPI number?
1598056939. 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 Leanna M. 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 patients39
Services billed to Medicare103
Different services or procedures23
Participating Medicare providerYes
Average age of these patients63

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)27 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)19 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 pressure62%
  • High cholesterol54%
  • Arthritis46%

Hospitals where Leanna M. Lee works

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

Group practices

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

  • Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Loma Linda

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

All internal medicine doctors in Loma Linda →

Other clinicians in Faculty Physicians and Surgeons of Llusm

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

Clinician information

CredentialMD
Medical schoolUniversity Of California, Geffen School Of Medicine
Graduation year2011 (15 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598056939
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