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

Internal Medicine

Momin Masroor, MD

Works at hospitals in Orange, CA · California

Summary

Momin Masroor, MD (Internal Medicine) is listed by Medicare at 1 hospital in Orange, CA. NPI 1629770037. 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 Momin Masroor, 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
3Years since medical school (graduated 2023)
California University Of Science And MedicineMedical school
MaleGender (as listed)
The Regents of the University of California-IrvineGroup practice

Quick answers

Which hospitals does Momin Masroor work at?
Medicare's official clinician data lists Momin Masroor at 1 hospital: UCI Health-Orange. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Momin Masroor see patients?
Medicare's clinician data lists 1 practice location in Orange, CA. Call before your visit to confirm the address.
What is Momin Masroor's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Momin Masroor accept Medicare assignment?
Yes. Medicare's clinician data says Momin Masroor 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 the phone number for Momin Masroor?
(714) 456-7890, as listed in official Medicare / NPI Registry data.
What is Momin Masroor's NPI number?
1629770037. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Momin Masroor works

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

Group practices

Medicare enrollment lists Momin Masroor as a member of this group (CMS data updated 2026-10-02).

  • The Regents of the University of California-Irvine125 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Orange

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

All internal medicine doctors in Orange →

Clinician information

CredentialMD
Medical schoolCalifornia University Of Science And Medicine
Graduation year2023
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1629770037
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