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

Preventive Medicine

Leah M. Humann, MD

Works at hospitals in Loma Linda, CA · California

Summary

Dr. Leah M. Humann, MD is a preventive medicine doctor at 11370 Anderson St, Loma Linda, CA 92354. Phone: (909) 558-4000. Accepts Medicare assignment. In 2024, Leah M. Humann had 64 Original Medicare patients and 142 services. NPI 1639527286. 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: Preventive medicine doctor (Medicare lists Preventive Medicine)
  • Address: 11370 Anderson St, Loma Linda, CA 92354 · Directions (1 more location)
  • Phone: (909) 558‑4000
  • Medicare: Accepts Medicare assignment
  • Hospital: Loma Linda University Medical Center
  • Group practice: Faculty Physicians and Surgeons of Llusm
  • Medical school: University Of Oklahoma College Of Medicine · graduated 2016 (10 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Leah M. Humann, 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 Leah M. Humann accept Medicare assignment?
Yes. Medicare's clinician data says Leah M. Humann 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 Leah M. Humann see?
In 2024, CMS data shows 64 Original Medicare patients and 142 services for Leah M. Humann. This counts Original Medicare only and measures volume, not quality.
What is Leah M. Humann's NPI number?
1639527286. 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 Leah M. Humann, 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 patients64
Services billed to Medicare142
Different services or procedures12
Participating Medicare providerYes
Average age of these patients70

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)105 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 pressure72%
  • High cholesterol64%
  • Arthritis48%
  • Diabetes38%
  • Anxiety28%
  • Chronic kidney disease28%

Hospitals where Leah M. Humann works

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

Group practices

Medicare enrollment lists Leah M. Humann 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 Preventive Medicine doctors in California →

Other preventive medicine doctors in Loma Linda

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

All preventive 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 Oklahoma College Of Medicine
Graduation year2016 (10 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1639527286
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