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

Internal Medicine

Thuy Tien B. Le, MD

Sees patients in Fremont, CA · California

Summary

Dr. Thuy Tien B. Le, MD is an internal medicine doctor at 3200 Kearney St, Fremont, CA 94538. Phone: (510) 490-1222. Accepts Medicare assignment. In 2024, Thuy Tien B. Le had 301 Original Medicare patients and 603 services. NPI 1821418302. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 3200 Kearney St, Fremont, CA 94538 · Directions
  • Phone: (510) 490‑1222
  • Medicare: Accepts Medicare assignment
  • Group practice: Sutter Bay Medical Foundation
  • Medical school: Tufts University School Of Medicine · graduated 2014 (12 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Thuy Tien B. Le, 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 Thuy Tien B. Le accept Medicare assignment?
Yes. Medicare's clinician data says Thuy Tien B. Le 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 Thuy Tien B. Le see?
In 2024, CMS data shows 301 Original Medicare patients and 603 services for Thuy Tien B. Le. This counts Original Medicare only and measures volume, not quality.
What is Thuy Tien B. Le's NPI number?
1821418302. 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 Thuy Tien B. Le, 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 patients301
Services billed to Medicare603
Different services or procedures36
Participating Medicare providerYes
Average age of these patients75

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)147 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)88 services
  3. Injection, ceftriaxone sodium, per 250 mg (J0696)58 services
  4. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)40 services
  5. Injection of drug or substance under skin or into muscle (96372)39 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 cholesterol75%
  • High blood pressure69%
  • Arthritis41%
  • Diabetes32%
  • Ischemic heart disease26%
  • Osteoporosis24%

Practice locations

Addresses where Thuy Tien B. Le is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Thuy Tien B. Le as a member of this group (CMS data updated October 2, 2026).

  • Sutter Bay Medical Foundation3,829 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Fremont

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

All internal medicine doctors in Fremont →

Other clinicians in Sutter Bay Medical Foundation

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

Clinician information

CredentialMD
Medical schoolTufts University School Of Medicine
Graduation year2014 (12 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1821418302
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians