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

Hematology/Oncology

Monica E. Lee, MD

Works at hospitals in Fullerton, CA · California

Summary

Monica E. Lee, MD (Hematology/Oncology) is listed by Medicare at 1 hospital in Fullerton, CA. NPI 1215129309. 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 Monica E. 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

Hematology/OncologyPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
20Years since medical school (graduated 2006)
FemaleGender (as listed)
Providence Medical FoundationGroup practice

Quick answers

Which hospitals does Monica E. Lee work at?
Medicare's official clinician data lists Monica E. Lee at 1 hospital: Providence St. Jude Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Monica E. Lee see patients?
Medicare's clinician data lists 5 practice locations, including Fullerton, CA, Anaheim, CA and Diamond Bar, CA. Call before your visit to confirm the address.
What is Monica E. Lee's specialty?
Medicare lists Hematology/Oncology as the primary specialty, and also Internal Medicine.
Does Monica E. Lee accept Medicare assignment?
Yes. Medicare's clinician data says Monica E. 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.
Does Monica E. Lee offer telehealth?
Medicare's clinician data says Monica E. Lee offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Monica E. Lee?
(714) 871-3006, as listed in official Medicare / NPI Registry data.
What is Monica E. Lee's NPI number?
1215129309. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Monica E. Lee works

Medicare's Facility Affiliation Data lists Monica E. 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 Monica E. Lee is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Monica E. Lee as a member of this group (CMS data updated 2026-10-02).

  • Providence Medical Foundation1,466 clinicians in the group

Specialties

Find other Hematology/Oncology doctors in California →

Other hematologist-oncologists in Fullerton

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

All hematologist-oncologists in Fullerton →

Clinician information

CredentialMD
Graduation year2006
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1215129309
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