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Internal Medicine

Mansur H. Lee, MD

Works at hospitals in Whittier, CA · Upland, CA · California

Summary

Mansur H. Lee, MD (Internal Medicine) is listed by Medicare at 2 hospitals in Whittier, CA and Upland, CA. NPI 1265450621. Medicare data says the clinician accepts Medicare assignment. Source: CMS Facility Affiliation Data, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Mansur H. Lee, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

Internal MedicinePrimary specialty
YesAccepts Medicare assignment
22Years since medical school (graduated 2004)
MaleGender (as listed)

Quick answers

Which hospitals does Mansur H. Lee work at?
Medicare's official clinician data lists Mansur H. Lee at 2 hospitals: PIH Health Hospital-Whittier and San Antonio Regional Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Mansur H. Lee see patients?
Medicare's clinician data lists 3 practice locations, including La Jolla, CA and Anaheim, CA. Call before your visit to confirm the address.
What is Mansur H. Lee's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Mansur H. Lee accept Medicare assignment?
Yes. Medicare's clinician data says Mansur H. Lee accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is Mansur H. Lee's NPI number?
1265450621. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Mansur H. Lee works

Medicare's Facility Affiliation Data lists Mansur H. Lee at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.

Practice locations

Addresses where Mansur H. Lee is enrolled with Medicare (CMS data updated 2026-10-02).

  • 10666 N Torrey Pines RdLa Jolla, CA 92037
  • 200 W Ctr St PromenadeAnaheim, CA 92805
  • 200 W Ctr St Promenade, Suite 300Anaheim, CA 92805

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in La Jolla

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

All internal medicine doctors in La Jolla →

Clinician information

CredentialMD
Graduation year2004
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1265450621
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 2026-10-02, retrieved 2026-10-29
  2. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  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