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Internal Medicine

Sahar Lashin, MD

Works at hospitals in Los Angeles, CA · Newport Beach, CA · Fountain Valley, CA · California

Summary

Sahar Lashin, MD (Internal Medicine) is listed by Medicare at 3 hospitals in Los Angeles, CA, Newport Beach, CA and Fountain Valley, CA. NPI 1598053894. 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 Sahar Lashin, 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
YesOffers telehealth
32Years since medical school (graduated 1994)
FemaleGender (as listed)
Cedars-Sinai Medical Care FoundationGroup practice (+1 more)

Quick answers

Which hospitals does Sahar Lashin work at?
Medicare's official clinician data lists Sahar Lashin at 3 hospitals: Cedars-Sinai Medical Center, Hoag Memorial Hospital Presbyterian and Memorialcare Orange Coast Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Sahar Lashin see patients?
Medicare's clinician data lists 5 practice locations, including Fountain Valley, CA, Dana Point, CA and Costa Mesa, CA. Call before your visit to confirm the address.
What is Sahar Lashin's specialty?
Medicare lists Internal Medicine as the primary specialty.
Does Sahar Lashin accept Medicare assignment?
Yes. Medicare's clinician data says Sahar Lashin 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 Sahar Lashin offer telehealth?
Medicare's clinician data says Sahar Lashin offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Sahar Lashin?
(714) 378-7330, as listed in official Medicare / NPI Registry data.
What is Sahar Lashin's NPI number?
1598053894. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sahar Lashin works

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

Group practices

Medicare enrollment lists Sahar Lashin as a member of these groups (CMS data updated 2026-10-02).

  • Cedars-Sinai Medical Care Foundation1,692 clinicians in the group
  • Memorialcare Medical Foundation566 clinicians in the group

Specialties

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Fountain Valley

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

All internal medicine doctors in Fountain Valley →

Clinician information

CredentialMD
Graduation year1994
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1598053894
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