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

Nurse Practitioner

Sherilyn R. Toppenberg, MD

Works at hospitals in Loma Linda, CA · California

Summary

Sherilyn R. Toppenberg, MD (Nurse Practitioner) is listed by Medicare at 1 hospital in Loma Linda, CA. NPI 1699263814. 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 Sherilyn R. Toppenberg, 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

Nurse PractitionerPrimary specialty
YesAccepts Medicare assignment
YesOffers telehealth
8Years since medical school (graduated 2018)
FemaleGender (as listed)
Faculty Physicians and Surgeons of LlusmGroup practice

Quick answers

Which hospitals does Sherilyn R. Toppenberg work at?
Medicare's official clinician data lists Sherilyn R. Toppenberg at 1 hospital: Loma Linda University Medical Center. This is where the clinician works or has privileges; call the hospital to confirm.
Where does Sherilyn R. Toppenberg see patients?
Medicare's clinician data lists 3 practice locations, including Loma Linda, CA, Beaumont, CA and Los Angeles, CA. Call before your visit to confirm the address.
What is Sherilyn R. Toppenberg's specialty?
Medicare lists Nurse Practitioner as the primary specialty.
Does Sherilyn R. Toppenberg accept Medicare assignment?
Yes. Medicare's clinician data says Sherilyn R. Toppenberg 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 Sherilyn R. Toppenberg offer telehealth?
Medicare's clinician data says Sherilyn R. Toppenberg offers telehealth services. Ask the office which visits can be done by video or phone.
What is the phone number for Sherilyn R. Toppenberg?
(909) 558-4000, as listed in official Medicare / NPI Registry data.
What is Sherilyn R. Toppenberg's NPI number?
1699263814. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Hospitals where Sherilyn R. Toppenberg works

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

Group practices

Medicare enrollment lists Sherilyn R. Toppenberg as a member of this group (CMS data updated 2026-10-02).

  • Faculty Physicians and Surgeons of Llusm1,315 clinicians in the group

Specialties

Find other Nurse Practitioner doctors in California →

Other nurse practitioners in Loma Linda

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

All nurse practitioners in Loma Linda →

Clinician information

CredentialMD
Graduation year2018
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1699263814
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