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

Emergency Medicine

Jeffry J. Shellenberger, MD

Sees patients in Oakland, CA · California

Summary

Jeffry J. Shellenberger, MD (Emergency Medicine) is enrolled with Medicare at 1 practice location in Oakland, CA. NPI 1356547640. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Jeffry J. Shellenberger, 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

Emergency MedicinePrimary specialty
YesAccepts Medicare assignment
19Years since medical school (graduated 2007)
University Of Texas Medical School At San AntonioMedical school
MaleGender (as listed)
Geniemd Medical Group Mo PCGroup practice

Quick answers

Where does Jeffry J. Shellenberger see patients?
Medicare's clinician data lists 1 practice location in Oakland, CA. Call before your visit to confirm the address.
What is Jeffry J. Shellenberger's specialty?
Medicare lists Emergency Medicine as the primary specialty.
Does Jeffry J. Shellenberger accept Medicare assignment?
Yes. Medicare's clinician data says Jeffry J. Shellenberger 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 Jeffry J. Shellenberger?
(925) 460-9191, as listed in official Medicare / NPI Registry data.
What is Jeffry J. Shellenberger's NPI number?
1356547640. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Jeffry J. Shellenberger is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Jeffry J. Shellenberger as a member of this group (CMS data updated 2026-10-02).

  • Geniemd Medical Group Mo PC23 clinicians in the group

Specialties

Find other Emergency Medicine doctors in California →

Other emergency medicine doctors in Oakland

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

All emergency medicine doctors in Oakland →

Clinician information

CredentialMD
Medical schoolUniversity Of Texas Medical School At San Antonio
Graduation year2007
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1356547640
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. National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians